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NameIndex No1 Question I have about the topic of EnergyReplyReply 2
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Sun Jia Yu38Where does our main source of energy come from?sun -Dhurga, CharlotteThe Sun- Feliciathe Sun (phoebe+ felicia)the sun- gladys
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Chloe Ng4Can gravitational potential energy be stopped?Yes-Jiayuno geraudYes -Yap Yi Kang
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martin2525why must we learn abut energy ?? ( it's not like most of us would need it in real life)Well, if you are going to be a scientist, inventor, a person who conducts experiments etc. you need it
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Sun Jia Yu38Where does energy come fromSunSun-Jaylen
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Charlotte22why are we not learning mechanical energyNot in the syllabus. -Jia Xian & ShirlynNot in P-sch syllabus- JaylenMechanical energy is when an object possesses both kinetic and potential at the same time eg, an object rolling up a hill
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Sek Woo6How do we differenciate energy Qs and forces Qs in examsthere is no kinetic force and sound force and most Qs focus on frictional force - zheng an XD
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Lee Zi Xuan Felicia15What are all the types of energy?Gravitational ,elastic and chemical potential, heat ,kinetic,sound ,electrical,magnetic, nuclear and light energy
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haili17Why can't energy be created or destroyed?
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Isaac poon32Is there any energy in Bacteria?Bacteria known as decomposers break down wastes and dead organisms into smaller molecules. These bacteria use the organic substrates they break down to get their energy, carbon, and nutrients they need for survival.
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Nozomu Loh23Does oxygen have chemical potential energy?probably not i guess oxygen doesnt eat food and stuff
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Dhurgashree35How many types of energy are there in the worldAnother useful term is the heat of combustion, which is the energy mostly of the weak double bonds of molecular oxygen released due to a combustion reaction and often applied in the study of fuels. ... Chemical potential energy is a form ofpotential en
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Jia Xian19I wonder if everything we do is related to energy.
i think soyess if you sleep you get energy if you don't sleep
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Yap Yi Kang41Does gravitational potential energy get lesser and lesser every time?when a ball is falling, it starts to lose gravitational potential energy as it is converted into kinetic energy -bernice and xin hui
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Zhi Qing2What are other important forces except for the ones that we learnt around the world?Yes
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geraud and jaylen10&13What is dark matter?
Dark matter is a hypothetical type of matter distinct from ordinary matter such as protons, neutrons, electrons, and neutrinos.-fucheng
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chan wei ling3How does the energy conversion works in detailed?
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GS Jason21how many types of energy are there?10
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shaun18How is electrical energy createdEnergy cannot be created but converted- Seah Zhi Cheng
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Hong Yu Ning12How is the energy stored in an item?Energy storage is the capture of energy produced at one time for use at a later time. A device that stores energy is sometimes called an accumulator or battery. Energy comes in multiple forms including radiation, chemical, gravitational potential, electrical potential, electricity, elevated temperature, latent heat and kinetic. Energy storage involves converting energy from forms that are difficult to store to more conveniently or economically storable forms. Bulk energy storage is currently dominated by hydroelectric dams, both conventional as well as pumped.
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shriya24is sound an energy like sound energyyes
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Xin Hui27Is there gravitational energy on the moon?Hui Ren - Yes, about 1/6 as much as earth...:)Yes. There is much lesser gravitational energy on the moon though.
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martin25Even though perpetual motion is not possible , isn't earth's movement considered perpetual motion??No.
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Bernice Soh1Are there gravitational energy on the sun?yes but it can't be experience as when anyone get close, they will die....shaun
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chong rui en 5are there other types of energy?Yes - Seah Zhi Cheng
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Belle30Is it that the bigger the turbine, the more the energy will be made?Ice storage tanks store ice frozen by cheaper energy at night to meet peak daytime demand for cooling. The energy isn't stored directly, but the work-product of consuming energy (pumping away heat) is stored, having the equivalent effect on daytime consumption.
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ruel33is there energy in cellsYes
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Phoebe31
What happens if energy can be destroyed?
the world would be destroyed tooenery can never be destoryed( Gladys)
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Lim Sui Yee20Can all kinds of energy be converted?Yes.
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chong rui en 5are there other types of energy?Yes, there were There are many forms of energy: like solar, wind, wave and thermal to name a few, but the 6 Forms of Energy we study in Needham are: Sound, Chemical, Radiant, Electric, Atomic and Mechanical. Sound Energy- is produced when an object is made to vibrate.-wei ling
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Bavaesh28Is it possible to defy gravity???Yes- Sui Yeeyes just go into space
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Pang Hui Ren29
Are there other types of potential energy? What are their uses?
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Shirlyn Cheong36
How does the solar panel convert sunlight into energy?
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Gladys11
What are the other types of energy that we did not learn?
I think we learn all alrady
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[GS] Kyaw Naing Htet
14How do wind turbines work?The wind spins it which is converted into electrical energy in the generatorit turns and wiggles.The energy in the wind turns two or three propeller-like blades around a rotor. The rotor is connected to the main shaft, which spins a generator to create electricity.
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Li Fu Cheng16Is the sun and fossil fuels the only source of energyNo-geraudNo- JaylenObviously more than those-Jiayunope
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Eunice9If there is no ground for an object to drop on, where will it drop to? The center of the earth?tthat wont be possible as if there is no ground , there is no earth , when thers no earth , there is no center of earth for the object to fall on-martinThink so, and that is why there is something called ground-Jiayu
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Matthias26Why is energy converted, why not like become/transform?because of english, making convert the correct word transform and become can but converted is a better like um word
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Seah Zhi Ch34
What is the gravitational potential energy when a round object is in the middle of the earth's core.
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zheng an 7
which planet has the strongest gravitational potential energy?
Go find out yourself, there is billions of universe that aren't yet discovered by scientist-JiayuThe bigger the planet, the stronger the gravitational energytat's right. The greater the mass the heavenly body has, the greater the gravitational force it exerts on another object
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