I am from an Arts background, I am just starting to begin prep for doing the gamsat in 2022 and I have been anxious about being so far behind in scientific knowledge. Getting both of these answers right just based on the information provided and some logic gives me some confidence
Thank you for making this content. I don't have the money, as a student, for paying for private courses. So videos like yours are really beneficial! Greatly explained!
The student/score bell curve was a great method for explaining graphic relationships. Could you perhaps make a video on graphical analysis with different graphs!
Thank you so much for this. Breaking down the reasoning is super helpful. I come from a science background and I sometimes find it a hinderance as I start trying to remember formulae rather than looking at the information already provided! Am I right in saying the the answer for the second question is Pluto? It has the lowest escape velocity which makes me think that there isn’t a strong “force/resistance” that would normally be provided by gases/an atmosphere?
Hi Chloe, you are so welcome! There is a misconception that having a science background automatically gives you an advantage in Section 3, which is not 100% true. Partly due to what you have mentioned about students relying on their assumed knowledge when they should be paying more attention to the stimulus (information provided in the question). Yes, Pluto is the answer to the second question. It has the lowest value of 1.1 in Table 1, which means that out of all the options it has the lowest escape velocity (i.e. you don't need to travel very quick to be able to escape). That means, it is the planet which is easiest for a gas molecule (which make up an atmosphere) to escape from.
@@barrystutoring Quick question (Q.67), why would the lowest gaseous speed be the least likely to have an atmosphere? In other words, why is pluto the answer?
@@Monica-jq4gy thanks for the question! Pluto has the lowest escape velocity. That means, if you are a gas molecule you don't need to travel as fast to be able to escape from pluto compared to all the other planets. Hope that makes sense :)
I think the second one can be solved by looking at table 1. My answer would be Pluto because it has the lowest escape speed (1.1x10^3 m/s) , so that means more particles would be able to escape and the atmosphere would not be contained. Whereas with planets like Jupiter, the escape speed is waaay higher so particles would need to be going a lot faster in order to escape the gravitational pull of the planet. Does that make sense? hope that helped :)
the second question 67. is answer pluto. becuase it has the lowest speed for a particle/molecule to have in order to escape the planet. and assuming the particles shown in figure 1, Hydrogen, oxygen, c02, helium, are the particles that composes an atmosphere, would mostly escape pluto due to attaining the threshold speed, and hence least likely to have an atmosphere from the given the planet choices
@@barrystutoring thanks barry. just wanted to ask u if u know any sites or resources to just practice these kind of questions. dont mind paying. preparing for gamsat nxt month👍
Thanks, Barry for this. Is it common in the GAMSAT that they include formulas in questions but we may not actually need to use it to answer the question?
I don't know if it's common but it is possible. I guess what is important is for you to ask yourself if you need to use certain equations (or info) for a particular question. Being able to filter relevant vs irrelevant information is crucial in S3. Hope that helps :)
Yes, Pluto has the lowest value of 1.1 in Table 1, which means that out of all the options it has the lowest escape velocity (i.e. you don't need to travel very quick to be able to escape). That means, it is the planet which is easiest for a gas molecule (which make up an atmosphere) to escape from.
I see that there are two methods. The first is to know the answer and choose it in 3 seconds. The other is to decipher the information given as a tricky riddle, which takes 10 minutes.
Hi Anthony, thanks for your comment! I agree that you can answer this with assumed knowledge vs. reasoning. Section 3 is "Reasoning in Biological and Physical Sciences" and while it does require recall of some science fundamentals, it is designed to test your problem solving and reasoning abilities. Also, if you have the right approach, questions like these shouldn't take more than 2-3min to solve.
If we donot do what u have did simple another answer of this question is V is inversely proportional to R so simple hydrogen has least raduis then if radius is small that having larger escape velocity ☺️
Thanks Akash for commenting! While using proportionality in the GAMSAT is common, you can't quite use it in this case. This is because "R" in this question has been defined as the radius of a celestial body (like a planet/star) not that of an atom/molecule. Hope this helps :)
@@barrystutoring Thanx but i am concerned with only 66th question that u have solved the question is which gase will escape most readily thats why if we see the molecule of a gas then i can say a hydrogen atom has least raduis i think that concept is valid in this
You can use assumed knowledge that hydrogen is the smallest, lightest gas yes. I was referring to the use of the equation, you cannot relate the radius of the hydrogen to "v", escape velocity, because it is to do with the planets/stars. For those who don't have a strong science background, the only other way is to follow the information/logic provided by the stimulus. It is a bit slower but it is more representative of what you'd need to do in the GAMSAT
I may be wrong, but isn’t the most efficient way of answering the problem just to know that Hydrogen is the first and lightest of all the elements in the periodic table, and so it is the least likely to be retained (or most likely to escape) the Earth or any other body? The Tables and Figure all support that same conclusion (and so are not irrelevant), but they are not necessary for answering the question. You only need to look at the available options to the question in order to reach the answer.
Hi Glenn, thanks for your comment! It definitely would be faster but relies on many assumptions based on your prior knowledge which many students may not have. Also, if the context of the question changed to a more obscure topic (which is very possible in the GAMSAT) then the advantage gained from prior knowledge is lost. That's why I always prefer students to learn how to navigate the information in the question stem and stimulus before digging into their own knowledge.
I think you will need to do Methods but I'm not an expert. With regard to the GAMSAT though, a lot of the things you learn up to yr 10 will be crucial. Like how to manipulate fractions, decimals, percentages, ratios, indices and basic algebra. Make sure these skills are not lost during undergrad, as it is common for uni students to rely on their calculators.
That was easy and didn't even require the graph or data because hydrogen is the lightest and most volatile element. It will explode in upon exposure to static from human touch and requires heavy duty containers for isolation. There is a reason why fuel cell cars suck and it's because of the extra weight from the tanker to be able to conceal the stuff and explosive nature.
Hi Sean, thanks for the comment! This video is to show you how to approach GAMSAT style questions with minimal knowledge using what is given in the stimulus. Section 3 of the test is written mainly to assess reasoning skills and not knowledge (though fundamentals are still needed). For those with knowledge around hydrogen or even the solar system, these questions can be answered almost instantaneously but not everyone will be able to do so, and it's not practical to learn EVERYTHING science related.
Yeah that’s why a science background is good for S3, because it can help you answer those kinds of questions quickly. This video is more for people of a non science background
Hi there! I don't think there is an exact percentage and is likely to vary between sittings and possibly even between candidates. But I'd say that the GAMSAT has been leaning towards these type of question in recent years. Another question you could ask is "HOW can I tell a question requires background knowledge which I don't have?". This is so you know when to guess and move on.
On the basis of energy required to accelerate atoms to escape velocities, Hydrogen makes sense because of its low mass. However, in reality Hydrogen exists in Earth's atmosphere in the form of water vapour (H_2O) which is retained in the atmosphere much more than Helium, the next lightest element. Maybe I'm overthinking what the question is probing but wouldn't that be a fair argument?
Thanks for your comment! What you have said is true, regarding hydrogen as an element and that it is a component in water. However, the question is referring to gases, so when the answer options specify "hydrogen", they mean hydrogen gas, or H_2. Hope that makes sense!
@@barrystutoring Thanks for the quick response! Yeah, I figured that was the case - they wouldn't have explicitly stated gases if that wasn't what they were looking at. Good job I stuck with A ;)
Hi, I'm based in Melbourne but I also tutor via Skype. However, I'm booked out for the March 2020 sitting! If you are interested in similar videos, please check out: thescienceofgamsat.teachable.com/courses/gamsat-s3-strategy-classes
@@barrystutoring I don't have a heavy science background but I'm thinking that the actual GAMSAT exam would be harder than the practice questions, yes?
Whether or not it is harder, is a very subjective thing (what you might find easy someone else might find hard, and vice versa). Having said that, many say that the actual test is harder. It is also difficult to know if it is perceived (due to stress/anxiety associated with the exam day) or real. What I CAN guarantee, is that the question style (the way the question is framed and information presented) is most like that in the ACER practice materials.
Hi Rosien, thanks for your comment! I agree that you can answer this with assumed knowledge vs. reasoning. Section 3 is "Reasoning in Biological and Physical Sciences" and while it does require recall of some science fundamentals, it is designed to test your problem solving and reasoning abilities. Also, if you have the right approach, questions like these shouldn't take more than 2-3min to solve.
Well Pluto has the lowest escape velocity , so my reasoning is that there can’t be much atmosphere to keep particles from escaping hence not much velocity is needed to escape …
For help with GAMSAT Section 3, check out my e-courses here:
thescienceofgamsat.teachable.com/
I am from an Arts background, I am just starting to begin prep for doing the gamsat in 2022 and I have been anxious about being so far behind in scientific knowledge. Getting both of these answers right just based on the information provided and some logic gives me some confidence
I personally know of many students from non-science backgrounds who are now in med school. Good luck Peter!
Please do more videos mate, your content is the real GOLD STANDARD!
Hope preparations are going well :)
Great job. This illustrates well how irrelevant information can lead you to overthink such a straightforward process of reasoning.
Thanks Steven! Yes, many get overwhelmed by information in the GAMSAT which can cloud our judgement :)
Thank you for making this content. I don't have the money, as a student, for paying for private courses. So videos like yours are really beneficial! Greatly explained!
Glad you find the videos helpful!
Great explanation... I am not even sitting the test... and easily understood!
The student/score bell curve was a great method for explaining graphic relationships.
Could you perhaps make a video on graphical analysis with different graphs!
Sure! I'll keep that in mind :)
Yes!! please do more like this! makes it seem so easy
Thank you so much for this!! More of these tutorials would be very well received!
Omg I’m so happy I understood this 🥺🙌🏾 thank you so much!
You are very welcome!
this is such a good video, explained so clear and succintly
Very simple and effective!! Thank you!!
I’m not even the one studying Gamsat, but this is so interesting to watch.
Glad you enjoyed it!
please make more of these types of videos
Thank you so much for this. Breaking down the reasoning is super helpful. I come from a science background and I sometimes find it a hinderance as I start trying to remember formulae rather than looking at the information already provided!
Am I right in saying the the answer for the second question is Pluto? It has the lowest escape velocity which makes me think that there isn’t a strong “force/resistance” that would normally be provided by gases/an atmosphere?
Hi Chloe, you are so welcome! There is a misconception that having a science background automatically gives you an advantage in Section 3, which is not 100% true. Partly due to what you have mentioned about students relying on their assumed knowledge when they should be paying more attention to the stimulus (information provided in the question).
Yes, Pluto is the answer to the second question. It has the lowest value of 1.1 in Table 1, which means that out of all the options it has the lowest escape velocity (i.e. you don't need to travel very quick to be able to escape). That means, it is the planet which is easiest for a gas molecule (which make up an atmosphere) to escape from.
The next questions answer is Pluto? Is that correct? Just following the train of thought you have just presented, great video thankyou
Yes, that's correct! Nice work :)
@@barrystutoring Quick question (Q.67), why would the lowest gaseous speed be the least likely to have an atmosphere? In other words, why is pluto the answer?
@@Monica-jq4gy thanks for the question! Pluto has the lowest escape velocity. That means, if you are a gas molecule you don't need to travel as fast to be able to escape from pluto compared to all the other planets. Hope that makes sense :)
Barry's Tutoring Thanks for your reply that makes perfect sense !! You have a real talent for explaining 👏😁
you are fantastic, yes please make more!
Great explanation :). Can you/we answer the second question too? Thanks!
I think the second one can be solved by looking at table 1. My answer would be Pluto because it has the lowest escape speed (1.1x10^3 m/s) , so that means more particles would be able to escape and the atmosphere would not be contained. Whereas with planets like Jupiter, the escape speed is waaay higher so particles would need to be going a lot faster in order to escape the gravitational pull of the planet. Does that make sense? hope that helped :)
@@96Djsaf I think the same but I just asked him
Hi can we get more videos. It was so helpful!
Thanks Laila! I've got a few new videos too in case you haven't seen them :)
Perfect explanation!!
Thanks Kadija! Hope GAMSAT prep is going well :)
Your channel reminds me of the refreshing taste of Barry's Red Cola
Ah ... a great companion on any adventure.
More gamsat practice please
the second question 67. is answer pluto. becuase it has the lowest speed for a particle/molecule to have in order to escape the planet. and assuming the particles shown in figure 1, Hydrogen, oxygen, c02, helium, are the particles that composes an atmosphere, would mostly escape pluto due to attaining the threshold speed, and hence least likely to have an atmosphere from the given the planet choices
Great explanation!
@@barrystutoring thanks barry. just wanted to ask u if u know any sites or resources to just practice these kind of questions. dont mind paying. preparing for gamsat nxt month👍
Hi John, feel free to contact me via www.barrystutoring.com or via my Facebook page to discuss further :)
Thank you!!
You are very welcome!
Thanks, Barry for this. Is it common in the GAMSAT that they include formulas in questions but we may not actually need to use it to answer the question?
I don't know if it's common but it is possible. I guess what is important is for you to ask yourself if you need to use certain equations (or info) for a particular question. Being able to filter relevant vs irrelevant information is crucial in S3. Hope that helps :)
Bary what about question 67 please? What is the correct answer please.
Many Thanks for your inspiration
The answer is D, Pluto. More importantly, can you explain why it is the best option?
@@barrystutoring Barry perhaps because on Table 1 Pluto has 1.1? Which is the lowest
Yes, Pluto has the lowest value of 1.1 in Table 1, which means that out of all the options it has the lowest escape velocity (i.e. you don't need to travel very quick to be able to escape). That means, it is the planet which is easiest for a gas molecule (which make up an atmosphere) to escape from.
Please do more and more
I see that there are two methods. The first is to know the answer and choose it in 3 seconds. The other is to decipher the information given as a tricky riddle, which takes 10 minutes.
Hi Anthony, thanks for your comment! I agree that you can answer this with assumed knowledge vs. reasoning. Section 3 is "Reasoning in Biological and Physical Sciences" and while it does require recall of some science fundamentals, it is designed to test your problem solving and reasoning abilities. Also, if you have the right approach, questions like these shouldn't take more than 2-3min to solve.
If we donot do what u have did simple another answer of this question is V is inversely proportional to R so simple hydrogen has least raduis then if radius is small that having larger escape velocity ☺️
Thanks Akash for commenting! While using proportionality in the GAMSAT is common, you can't quite use it in this case. This is because "R" in this question has been defined as the radius of a celestial body (like a planet/star) not that of an atom/molecule. Hope this helps :)
@@barrystutoring Thanx but i am concerned with only 66th question that u have solved the question is which gase will escape most readily thats why if we see the molecule of a gas then i can say a hydrogen atom has least raduis i think that concept is valid in this
You can use assumed knowledge that hydrogen is the smallest, lightest gas yes. I was referring to the use of the equation, you cannot relate the radius of the hydrogen to "v", escape velocity, because it is to do with the planets/stars. For those who don't have a strong science background, the only other way is to follow the information/logic provided by the stimulus. It is a bit slower but it is more representative of what you'd need to do in the GAMSAT
I may be wrong, but isn’t the most efficient way of answering the problem just to know that Hydrogen is the first and lightest of all the elements in the periodic table, and so it is the least likely to be retained (or most likely to escape) the Earth or any other body? The Tables and Figure all support that same conclusion (and so are not irrelevant), but they are not necessary for answering the question. You only need to look at the available options to the question in order to reach the answer.
Hi Glenn, thanks for your comment! It definitely would be faster but relies on many assumptions based on your prior knowledge which many students may not have. Also, if the context of the question changed to a more obscure topic (which is very possible in the GAMSAT) then the advantage gained from prior knowledge is lost. That's why I always prefer students to learn how to navigate the information in the question stem and stimulus before digging into their own knowledge.
@@barrystutoring Cool, thanks Barry! And great explanation in the video.
Well might as well do physics also for year 11
Starting prep for the GAMSAT early! Make sure to keep your math skills sharp as well :)
@@barrystutoring it's recommended i do advanced maths for physics in year 11 and 12 right?
I think you will need to do Methods but I'm not an expert. With regard to the GAMSAT though, a lot of the things you learn up to yr 10 will be crucial. Like how to manipulate fractions, decimals, percentages, ratios, indices and basic algebra. Make sure these skills are not lost during undergrad, as it is common for uni students to rely on their calculators.
10/10 vid
That was easy and didn't even require the graph or data because hydrogen is the lightest and most volatile element. It will explode in upon exposure to static from human touch and requires heavy duty containers for isolation. There is a reason why fuel cell cars suck and it's because of the extra weight from the tanker to be able to conceal the stuff and explosive nature.
Hi Sean, thanks for the comment! This video is to show you how to approach GAMSAT style questions with minimal knowledge using what is given in the stimulus. Section 3 of the test is written mainly to assess reasoning skills and not knowledge (though fundamentals are still needed). For those with knowledge around hydrogen or even the solar system, these questions can be answered almost instantaneously but not everyone will be able to do so, and it's not practical to learn EVERYTHING science related.
Yeah that’s why a science background is good for S3, because it can help you answer those kinds of questions quickly. This video is more for people of a non science background
Have liked and subscribed
Thanks Diana! Hope GAMSAT prep is going well :)
Section I videos please
What percentage of questions of S3 are like this (little background knowledge/ more logical based)
Hi there! I don't think there is an exact percentage and is likely to vary between sittings and possibly even between candidates. But I'd say that the GAMSAT has been leaning towards these type of question in recent years.
Another question you could ask is "HOW can I tell a question requires background knowledge which I don't have?". This is so you know when to guess and move on.
very easy question
Glad you found it easy! Did you figure it out with what you already know?
@@barrystutoring just read it for 5 minutes and decided it had to be the lightest gas. Your videos are great
On the basis of energy required to accelerate atoms to escape velocities, Hydrogen makes sense because of its low mass. However, in reality Hydrogen exists in Earth's atmosphere in the form of water vapour (H_2O) which is retained in the atmosphere much more than Helium, the next lightest element. Maybe I'm overthinking what the question is probing but wouldn't that be a fair argument?
Thanks for your comment! What you have said is true, regarding hydrogen as an element and that it is a component in water. However, the question is referring to gases, so when the answer options specify "hydrogen", they mean hydrogen gas, or H_2. Hope that makes sense!
@@barrystutoring Thanks for the quick response! Yeah, I figured that was the case - they wouldn't have explicitly stated gases if that wasn't what they were looking at. Good job I stuck with A ;)
Where do you teach
Hi, I'm based in Melbourne but I also tutor via Skype. However, I'm booked out for the March 2020 sitting! If you are interested in similar videos, please check out:
thescienceofgamsat.teachable.com/courses/gamsat-s3-strategy-classes
Barry's Tutoring aw I’m doing the gamsat in March and I’m based in Melbourne! 😫
So sorry! Will it be your first sitting?
Barry's Tutoring no I took it before but I was never prepared
Surely the GAMSAT difficulty is not the same as this right?
Hi there! Are you suggesting that this example seems easier or harder?
@@barrystutoring I don't have a heavy science background but I'm thinking that the actual GAMSAT exam would be harder than the practice questions, yes?
Whether or not it is harder, is a very subjective thing (what you might find easy someone else might find hard, and vice versa).
Having said that, many say that the actual test is harder. It is also difficult to know if it is perceived (due to stress/anxiety associated with the exam day) or real.
What I CAN guarantee, is that the question style (the way the question is framed and information presented) is most like that in the ACER practice materials.
@@barrystutoring I see, thank you for that though! I'll just prepare for the worst and hope it wont
So I just tought hydrogen because it's the lightest. Is that correct too? Your explanation is a lot longer xD
Hi Rosien, thanks for your comment! I agree that you can answer this with assumed knowledge vs. reasoning. Section 3 is "Reasoning in Biological and Physical Sciences" and while it does require recall of some science fundamentals, it is designed to test your problem solving and reasoning abilities. Also, if you have the right approach, questions like these shouldn't take more than 2-3min to solve.
Let me guess: A (lightest air) & B (heaviest planet).
Hello and thanks for participating! Can you explain you reasoning?
is 67 c
Hi there! The answer is actually D. More importantly, can you explain why?
Well Pluto has the lowest escape velocity , so my reasoning is that there can’t be much atmosphere to keep particles from escaping hence not much velocity is needed to escape …