The purpose of flywheel in the engines is________________?
Correct answer: A. to smooth out the energy variation
- A. to smooth out the energy variation
- B. to add more weight to engine to work it stable
- C. to start engine
- D. both A and BEngine & Transmission
Explanation
A flywheel stores rotational kinetic energy when the engine produces excess torque and releases it when torque falls, smoothing energy and speed variations. The likely mistake is choosing that it starts the engine, but starting is normally performed by a starter motor.
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The work-energy theorem states that the net work done on an object equals its change in kinetic energy. Questions involve positive and negative work, variable forces and force-displacement graphs, acceleration or deceleration, and the difference between this theorem and conservation of mechanical energy, which also requires attention to potential energy and non-conservative work.
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