Question

What happens in terms of energy when a moving car hits a parked car, causing the parked car to move?

The moving car transfers kinetic energy to the parked car.
Kinetic energy in the moving car disappears.
Kinetic energy in the parked car is created.
The parked car transfers kinetic energy to the moving car.

Answer 1

Answer;

The moving car transfers kinetic energy to the parked car.

Explanation;

• Energy is the ability of work to be done. It is measured in joules. The energy in an object depends on whether an object is in motion or at rest.
• Kinetic energy is the energy possessed by a body in motion. Calculated by 1/2mv², where m is the mass of the body and v is the velocity of the body in motion. Therefore, the moving car possess kinetic energy.
• When a body is at rest it posses potential energy. Thus, the parked car possessed kinetic energy which changed when it was hit by the moving car as the kinetic energy of the moving car was transferred to the parked car.

Answer 2

The moving car transfers kinetic energy to the parked car.

Conservation of energy

The law of conservation of energy states that energy can neither be created nor destroyed but can be converted from one form to another.

A moving car has kinetic energy which is transferred to a parked car when it hits it.

Thus, the moving car transfers kinetic energy to the parked car.

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