Some tips to consider: 1) Gravitational potential energy (PEgrav) depends on the body's mass m and change in vertical position Δy. The Δy is always relative to a chosen reference (e.g. the ground, the floor, the top of a table, etc.) In one example you used (a bigger water tumbler and a smaller one on top of a table) their PEs are not equal (greater for the bigger mass) if the chosen reference is the floor (the Δy is the same for both). But then if the chosen reference is the top of the table, they both have zero PE. 2) Pushing a hammer to drive a nail on a piece of wood--- you said the drawing suggests only kinetic energy. That's correct if you only consider the nail as it moves or penetrates into the wood. But the hammer has potential energy when it is first raised to a certain height before striking the nail. 3) The given initial velocity of a ball being "thrown" up (30 m/s) is unrealistic (probably this was 3.0 m/s).
kala ko nung una ang hirap hirap but nung pinanood ko tong vid ang dali lang pala ang galing mo mag turo ma'am super thankful po ako sa inyo❤️i learned a lot again😭❤️
Hi Teacher Khristine, i got confused Teacher Khristine, my teacher said that the given for g which is acceleration is always 9.8m/s². It is already given So for this problem. 18:44 There is a bell at the top of a tower that is 50m high.The bell weights 180N. The bell has ________ Energy?? Given : height= 50m mass = 180n or 180kg gravitational due to gravity = 9.8m/s² Formula: PE=mgh Solution: PE=mgh (180kg)(9.8m/s²)(50m) = 88,200 J Teacher Khristine can you reply to me and explains this to me. It will help me a lot. Thank you!!😊
Thank you for your question. Mass is different from weight. When you say mass it is regardless of the acceleration to gravity. It is just the "mass" that's why its unit is kg or g. But, if it is weight, the unit is Newton (N) which is also equivalent to kg•m/s². Wherein kg (mass) x m/s² (unit for acceleration due to gravity). So when you say "the bell weighs 180N" that is already equivalent to the mass and the acceleration due to gravity which is 9.8m/s². But if the problem says, the bell weighs 180kg, that's the only time that you have to multiply the given with acceleration due to gravity. Always look for the unit used mass (kg or g), acceleration (m/s²), weight (N or kg•m/s²), energy (J or N•m). I hope everything is clear. :)
super helpful po lahat ng mga vids nyo po sa aking pagaaral may the lord bless you po at marami pa po kayong matulungan kung kaya naman ay subscribe at like nanatin yarnnn
Science day po namin ngayon kaya kaka download ko lang ang hirap po talaga kasi yung cell phone ko nagloloko ayaw o mahina sumagap ng wifi kahit malapit lang sa tindahan pero kinaya parin ng 1 year nung grade 7 ako ngayong grade 8 siguro kakayanin pa pero salamat po talaga sa mga videos nyo kahit ayaw nang gumana ng cell phone ko pipilitin ko pa ring matuto
There is no kinetic energy in a moving mass there is force Mv squared kinetic energy is the energy of consistent work from a consistent force regards Graham Flowers
Complete na po yan til Week 8. You can check my playlist Science 8 Quarter 1 Week 5 - MODULE 5: Hierarchy of Colors in Relation to the Energy of Visible Light Video Link ua-cam.com/video/in6-9TfPWnA/v-deo.html Week 6 - MODULE 6: Heat vs Temperature Video Link ua-cam.com/video/iobfXidk4PI/v-deo.html Week 7 - MODULE 7: (ELECTRICITY) Part 1. Relationship Between Current and Voltage Video Link ua-cam.com/video/fyGehebZYus/v-deo.html Part 2. OHM'S LAW (Problem Solving/Computation) Video Link ua-cam.com/video/46ddJ6bHavk/v-deo.html Week 8 - MODULE 8: Electricity Part 1. Advantages and Disadvantages of Series and Parallel Connection Video Link ua-cam.com/video/RV9rHkyGB5Q/v-deo.html Part 2. Safety Devices Used at Home Video Link ua-cam.com/video/8sEMzuHlTw8/v-deo.html
From the equation KE = 1/2 (2.3kg)(30m/s)² (30m/s)² is equaivalent to 900m²/s² because 30x30 is 900. So, the equation will be KE = 1/2 (2.3kg)(900m²/s²), when you multiply 2.3 by 900 the answer is 2070. So the equation goes like this KE = 1/2(2070kg•m²/s²) Half of 2070 is 1035. 1/2 is also equivalent to 0.5, when you multiply 0.5 to 2070, the final answer will ve 1035. :) I hope it's now clear. :)
What is the equation po na gagamitin para dito A baby carriage is rolling down a hill at 18m/s. If the carriage has 900J of kinetic energy, what is the mass of the carriage?
900 m2/s2 when you multiply it to 2.3kg it is 2070. There is still 1/2 in the equation, so 2070 multiply it to 0.5(which is also equivalent to 1/2) the answer is 1035. :)
From the equation KE = 1/2 (2.3kg)(30m/s)² (30m/s)² is equaivalent to 900m²/s² because 30x30 is 900. So, the equation will be KE = 1/2 (2.3kg)(900m²/s²), when you multiply 2.3 by 900 the answer is 2070. So the equation goes like this KE = 1/2(2070kg•m²/s²) Half of 2070 is 1035. 1/2 is also equivalent to 0.5, when you multiply 0.5 to 2070, the final answer will ve 1035. :) I hope it's now clear. :)
Some tips to consider:
1) Gravitational potential energy (PEgrav) depends on the body's mass m and change in vertical position Δy. The Δy is always relative to a chosen reference (e.g. the ground, the floor, the top of a table, etc.) In one example you used (a bigger water tumbler and a smaller one on top of a table) their PEs are not equal (greater for the bigger mass) if the chosen reference is the floor (the Δy is the same for both). But then if the chosen reference is the top of the table, they both have zero PE.
2) Pushing a hammer to drive a nail on a piece of wood--- you said the drawing suggests only kinetic energy. That's correct if you only consider the nail as it moves or penetrates into the wood. But the hammer has potential energy when it is first raised to a certain height before striking the nail.
3) The given initial velocity of a ball being "thrown" up (30 m/s) is unrealistic (probably this was 3.0 m/s).
ma'am salamat po, God bless and Jesus loves you. very helpful to my study in Physics as a grade 8 student
Wow! Good to hear that. Thanks for watching!
kala ko nung una ang hirap hirap but nung pinanood ko tong vid ang dali lang pala ang galing mo mag turo ma'am super thankful po ako sa inyo❤️i learned a lot again😭❤️
Wow! Thank youuu so much for this comment. Glad to help. ❤ salamat din sa panonood.
Thank u po ma'am God bless 🥰
Very educational, good refresher course, thanks for sharing!
Thank you! :)
Thank you so much Ma'am naunawaan kopo talaga❤️
Ay salamat. :) Glad to help.
Maam ang galing nyo po magturo ! I learned a lot po ❤
Thank you po teacher tin nakatulong po sa akin Ang inyong discussion thanks po
Wow. Glad to hear that. Thank you for watching din. 🥰
thankyou somuch ma'am godbless!!
Thank you for sharing
Maam gusto ko kayong maging teacher masayahin po kayo at di nakakainip katulad ng iba
Thanks a lot Maam ❤
Woww.. nakakatuwa naman itong comment mo Piolo. 😊🥰 Thank you sa compliment. Nakakamotivate naman lalo. Salamat. ❤
@@khristineminjin908 Salamat din po sa inyo maam , Kasi dahil po sa inyo mas natutunan kopo ang topic na itinuturo nito pag nandiyan kayo 😍
@@piolosantiago8557 wow. Good to hear that Piolo. 🥰 naappreciate ko na nakakatulong itong video ko sayo. Salamat sa panonood.
Thank u po masasagutan kuna po pretest namin😁
potential energy
kaldiro,Baso,stand,bag and table
kinetic energy
fan,vehicle,
Thanks po maam, well explained
Thank u po so much
thankyoy ma'am
Hi Teacher Khristine, i got confused
Teacher Khristine, my teacher said that the given for g which is acceleration is always 9.8m/s². It is already given
So for this problem.
18:44
There is a bell at the top of a tower that is 50m high.The bell weights 180N. The bell has ________ Energy??
Given : height= 50m
mass = 180n or 180kg
gravitational due to gravity = 9.8m/s²
Formula: PE=mgh
Solution: PE=mgh
(180kg)(9.8m/s²)(50m)
= 88,200 J
Teacher Khristine can you reply to me and explains this to me. It will help me a lot. Thank you!!😊
Thank you for your question. Mass is different from weight. When you say mass it is regardless of the acceleration to gravity. It is just the "mass" that's why its unit is kg or g. But, if it is weight, the unit is Newton (N) which is also equivalent to kg•m/s². Wherein kg (mass) x m/s² (unit for acceleration due to gravity). So when you say "the bell weighs 180N" that is already equivalent to the mass and the acceleration due to gravity which is 9.8m/s². But if the problem says, the bell weighs 180kg, that's the only time that you have to multiply the given with acceleration due to gravity. Always look for the unit used mass (kg or g), acceleration (m/s²), weight (N or kg•m/s²), energy (J or N•m).
I hope everything is clear. :)
@@khristineminjin908 Now, i understand it better. Thank you Teacher Khristine for taking some time to explains that to me. It helps me a lot!😊
@@Rawrrpapogi.203 You are welcome Roderick. 🥰
super helpful po lahat ng mga vids nyo po sa aking pagaaral may the lord bless you po at marami pa po kayong matulungan kung kaya naman ay subscribe at like nanatin yarnnn
Thank youuu leandro. 😊
thank you very much maam,ive learned a lot about your video
Wow that's great! Thank you for watching. :)
Salamat po maam,malaking tulong po sa akin ang inyong pagtuturo..ang galing nyo po magdiscuss..
Ay salamat ng marami. Naappreciate ko ito. 🥰
thank you so much, ma'am! i am just having a quick recap after our online class and this really helped me a lot! Happy Teachers' Month, Ma'am!
Aww. Thank you so much! I appreciate this. Good luck sa studies. Thanks for watching. 🥰
thank you very much.its very helpful ❤️
Thanks 😀
Mom may tanong po ako dun video 15:53 pano po nakuha square root
Ay alam konapala mam mali lang pala ako gumamit calculator haha
Thank you so much po dami kong natutuhan❤️
Woww. Good to hear that. :) Glad to help po. God bless and thank you for watching!
Thank you po ma'am 🥰❤️
Thanks po mam💚
Thank you so much ma'am 💕
how do we multiply the 1/2 × 2.3 × 900?
I WAS CONFUSE TOO
Papalan mopo yung 1/2 gagawin mopong 0.5 para ma multiply mopo😊
You can use 0.5 instead of 1/2.
👏👏👏👏👏🤗
thank you po maam ang dami ko pong natutunan
Wow.. glad to hear that. Thank youu ❤
Happy teachers day po salamat po sa mga video nyo
Salamat. 🥰 Salamat din sa patuloy na panonood.
Science day po namin ngayon kaya kaka download ko lang ang hirap po talaga kasi yung cell phone ko nagloloko ayaw o mahina sumagap ng wifi kahit malapit lang sa tindahan pero kinaya parin ng 1 year nung grade 7 ako ngayong grade 8 siguro kakayanin pa pero salamat po talaga sa mga videos nyo kahit ayaw nang gumana ng cell phone ko pipilitin ko pa ring matuto
@@meiling6026 laban Lang! Makakaraos din yan. Sipag at tyaga lang. :)
Thank you po
thanks po maam
Maraming salamat po mam. Ang husay niyo mg explain. Malaking tulong po talaga kayo sa tutoring ko para sa aking apo.
You're welcome po. Maraming salamat din po.
Hi po maam dahil sayo po natututo po ako thank you po😁🤗
Wow. Glad to hear that. 🥰 Thanks for watching also.
@@khristineminjin908 Thank you po maam sa pag notice😁🤗
@@nicolaidanielestiva1344 you're welcome, Nicolai. :)
THANKYOU MAM SA PAG GUIDE SA AMIN!💜 D KO PO KINERI NUMBER 3😅😅
Hahahaha. You're welcome! Thank you din for watching my vlogs. 😊
Happy teachers day ma'am ❤️❤️
Thank you Earl! 🥰
TYSM MAAM THIS HELPED ME A LOT🥺 NEW SUBSCRIBER HERE
Glad to help. Thanks for watching!
There is no kinetic energy in a moving mass there is force Mv squared kinetic energy is the energy of consistent work from a consistent force regards Graham Flowers
THANK YOU MAAM MAKE MORE VIDS PAPO ❤️❤️
IT REALLY HELP US
you're welcome.
Complete na po yan til Week 8. You can check my playlist Science 8 Quarter 1
Week 5 - MODULE 5: Hierarchy of Colors in Relation to the Energy of Visible Light
Video Link ua-cam.com/video/in6-9TfPWnA/v-deo.html
Week 6 - MODULE 6: Heat vs Temperature
Video Link ua-cam.com/video/iobfXidk4PI/v-deo.html
Week 7 - MODULE 7: (ELECTRICITY)
Part 1. Relationship Between Current and Voltage
Video Link ua-cam.com/video/fyGehebZYus/v-deo.html
Part 2. OHM'S LAW (Problem Solving/Computation)
Video Link ua-cam.com/video/46ddJ6bHavk/v-deo.html
Week 8 - MODULE 8: Electricity
Part 1. Advantages and Disadvantages of Series and Parallel Connection
Video Link ua-cam.com/video/RV9rHkyGB5Q/v-deo.html
Part 2. Safety Devices Used at Home
Video Link ua-cam.com/video/8sEMzuHlTw8/v-deo.html
May tanong lang po ako ma'am
If KE po ang hinahanap dapat po ba kunin muna ang squared ng V? Bago po mag proceed
Taga sto cristo lang po kame
Thanks a lot maam tin 💖 saan po kayo nag tuturo? Sa quezon national high school po ba? dun po school ko
Ohh tlagaa bunso? Yes. Quezon High ako. :) Anong section mo?
@@khristineminjin908 nectarine po maam 😊
@@vanessaloyola8454 Woww. Nice! See you around.
ma'am can you give po examples of factors affecting kinetic and potential energy?
Maam ano po ang magiging kinetic energy if the speed and mass is reduced to 1/2?
It depends upon your speed and mass. :) reduced mo sa 1/2 ung speed and mass, then follow the equation in getting the KE.
Taga tayabas lang po pala kayo
Maam ano po ung itatimes ung 2.3kg•900m^2/s^2 lang po ba?
From the equation
KE = 1/2 (2.3kg)(30m/s)²
(30m/s)² is equaivalent to 900m²/s² because 30x30 is 900.
So, the equation will be KE = 1/2 (2.3kg)(900m²/s²), when you multiply 2.3 by 900 the answer is 2070.
So the equation goes like this
KE = 1/2(2070kg•m²/s²)
Half of 2070 is 1035.
1/2 is also equivalent to 0.5, when you multiply 0.5 to 2070, the final answer will ve 1035. :)
I hope it's now clear. :)
What is the equation po na gagamitin para dito
A baby carriage is rolling down a hill at 18m/s. If the carriage has 900J of kinetic energy, what is the mass of the carriage?
Ma'am tanong lang po, pano po naging 900 yung 30? Minultiply lang po ba sya?
(30)² kasi yun so 30x30 is 900.
Question po maam sa number 1 pano mo po nakuha yung 1035 which is pag po minultiply sya mahigit 2k?
900 m2/s2 when you multiply it to 2.3kg it is 2070. There is still 1/2 in the equation, so 2070 multiply it to 0.5(which is also equivalent to 1/2) the answer is 1035. :)
@@khristineminjin908 ok po maam when kaya ko mag kakaroon ng teacher na katulad mo hihi
Ma'am I have ask Po pano po naging 900 ms²/s² ung number 1 how do u multiply it Po Diba Po may 1/2 pa
Ay gets Kona Po thanku
@@kkazubs pano naging 900? Di ko getss
@@jelkab5505 Kunin mo ung square Ng 30 sagot 900, nood ka video kung pano kuhanin square if di mo alam
Ma'am can i ask po pano po naging 1035 ung number 1?
You multiply 2070 by ½. :)
Follow the formula KE = ½mv²
ma'am saan po nakuha 900m²/s²?😢
Mam may i ask pano nyo po syaa i multiply
Which part?
Pano nyu po minultiply ubg ke 1/2 (2.3kg)(900m²/s²)???
2.3kg x (900m²/s²) is 2070. When you multiply it by 1/2, it will be 1035. :)
÷2 po makukuha nio na yung 1035
@@Patricia-rp5ox tama!
hׁׅ֮ꫀׁׅܻ݊ᥣׁׅ֪ᥣׁׅ֪ᨵׁׅׅ
Maam pano po pag v yung nawawala
v = square root of 2KE/m
Mam baka naman mahy lp po kayo, nito?
Maaa'am pwede po pa sagot pleasee.
The ________________ of the object increases when elevated from the ground to a certain height.
NEED KO PO MA'AM PLEASEEE POOO
The potential energy of the object increases when elevated from the ground to a certain height. :)
@@khristineminjin908 YEYYY THANK YOU CHER YOU DESERVE MASTER TEACHER 3 TO THE HIGHEST LEVEL HEHE
@@charmazinggg wow naman hehehe goodluck sa studies.
Bakit 900 yung square root nang 30?
(30)² kasi yun so 30x30 is 900.
Ma'am paano po ma explain yung sa swing po
Ma'am nagawa ko po ❤️❤️❤️
Bilang thank you po d po ako nag e skip po Ng adds❤️❤️❤️
Paano po nging 1035?
From the equation
KE = 1/2 (2.3kg)(30m/s)²
(30m/s)² is equaivalent to 900m²/s² because 30x30 is 900.
So, the equation will be KE = 1/2 (2.3kg)(900m²/s²), when you multiply 2.3 by 900 the answer is 2070.
So the equation goes like this
KE = 1/2(2070kg•m²/s²)
Half of 2070 is 1035.
1/2 is also equivalent to 0.5, when you multiply 0.5 to 2070, the final answer will ve 1035. :)
I hope it's now clear. :)
Hi ma'am I'm confused po sa pag multiply hindi ba't po 900 x 2.3 = 2070kg•m2/s2. Pareply po asap may reporting papo kami huhu
2.3 x 900 is 2070. But based on the equation you still have to multiply it to ½.
KE = ½ (2.3kg)(900m²/s²)
KE = ½ (2070 kg•m²/s²)
KE = 1035 kg•m²/s²
@@khristineminjin908 ma'am, may i ask po ba, if wala po bang gravity yunh problem. Yung mass na po ang nag susubs bilang gravity?
@@katbalcuevarodriguez7002 acceleration due to gravity is always constant. Kahit hndi nabanggit sa problem, given prin un na 9.8m/s²
@@khristineminjin908 yung ginawa po kasi naming problem is walang gravity, so ano po ba dapat ang ilalagay na gravity if isosolve? 9.8m/s² po ba?
Ma'am???
Pano nyupo kinakalkyulator😭😭 un ung sa number 1 sa KE pano nyu po nakuha ung 1035J
Bukasna po ung summative test namin
2.3kg x (900m²/s²) is 2070. When you multiply it by 1/2, it will be 1035J. :)