QUESTION IMAGE
Question
which statement best defines the relationship between work and energy?
work can transfer energy between objects and increase radiant energy.
work can transfer energy between objects and cause a change in the form of energy.
work can transfer energy between objects and decrease nuclear energy.
work can transfer energy between objects and cause a change in the amount of total energy.
Brief Explanations
- According to the law of conservation of energy, the total amount of energy in an isolated system remains constant. So the statement about changing the amount of total energy is wrong.
- Work is a way of transferring energy. When work is done, energy can be transferred between objects and its form can change. For example, when you push a box (do work), the energy is transferred (from your body's chemical energy to the box's kinetic energy, and there may be some energy converted to heat due to friction). Radiant energy is just one form, and work is not specifically about increasing it. Nuclear energy is also just one form, and work is not about decreasing it.
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Work can transfer energy between objects and cause a change in the form of energy.