Question

Chapter (3)
ENERGY
Name the following (4 marks)
1.kinetic and potential energy together​

Answer 1

Explanation:

KINETIC AND POTENTIAL ENERGY WORKING TOGETHER

All forms of kinetic energy are the result of a previous state of potential energy. For example, the stored chemical potential energy of a battery converts to electrical kinetic energy to transport electricity to a light bulb, which radiates thermal kinetic energy.

Examples:

A hammer:

• when raised up has potential energy (the energy of position or state)
• when falling down has kinetic energy (the energy of motion)

Answer 2

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Kinetic energy :-

1. Moving car
2. Moving ball
3. Rotating fan
4. Moving train

Potential energy :-

• Heavy stone tied on the rope
• An aeroplane flying at a height
• Compressed or elongated spring
• Stretched rubber string