I have no ENERGY.
FALSE. Our everyday language and expressions of the terms might cause some confusion. In Physics, you always have energy, for every object has energy according to the motion and position.
FALSE. Our everyday language and expressions of the terms might cause some confusion. In Physics, you always have energy, for every object has energy according to the motion and position.
I worked hard for the whole three hours sitting at the desk!
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FALSE. No matter how tired you are, staying at one position is zero work in Physics because of your zero displacement.
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FALSE. Energy conservation refers to saving energy while the Law of Conservation of Energy is a statement of the nature of Physics that explains that energy is neither destroyed nor created. When a roller coaster is ready for a ride, it has enough energy to complete the whole track without additional force. Although, friction can cause an energy loss during the ride. To check out a comic strip, click here. |
Energy Conservation = the Conservation of Energy
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An object's mass does not change.
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FALSE. When a tiny particle like an electron reaches the speed of light, its mass increases. In such cases, the Newton's Second Law of Motion fails to accurately estimate the motion of atomic particles. The measure of mass can be also different from different frames of references as the theory of Special Relativity explains. We can use momentum for better estimation. In this unit, we are dealing with objects that can be estimated by both methods.
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FALSE. When a tiny particle like an electron reaches the speed of light, its mass increases. In such cases, the Newton's Second Law of Motion fails to accurately estimate the motion of atomic particles. The measure of mass can be also different from different frames of references as the theory of Special Relativity explains. We can use momentum for better estimation. To check out a vibrating glass on Youtube, click here. (Starting at 00:03:38) |
Glass cannot be elastic.
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