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Answer:
1 pressure
2 gains
3 no energy
4 increase
5 increases
6 kinetic , potential
7 mechanical
Answer:
1. Newton metre is the unit of work
2. when work is done on an object ,it gains energy.
3.An object at rest does not have kinetic energy.
4. If an object's velocity doubles, it's kinetic energy will increase by a factor of 4.
5. A ball is thrown upwards .while going hours potential energy will increase .
6. when an object is falling down, it's kinetic energy increases and potential energy decreases.
7. In an electric fan,electrical energy is converted into wind energy.
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