Physics Energy Part 2

Which of the following is an example of potential energy?

• A moving car

• A compressed spring

• A spinning top

• A flowing river

• 49.05 J

• 98.1 J

• 490.5 J

• 981 J

Which type of energy is stored in the bonds of molecules?

• Nuclear potential energy

• Chemical potential energy

• Elastic potential energy

• Electric potential energy

If a ball is dropped from a height, which type of force is responsible for the conversion of potential energy to kinetic energy?

• Frictional force

• Gravitational force

• Magnetic force

• Electric force

A 2 kg object is moving at a speed of 3 m/s. Calculate its kinetic energy.

• 3 J

• 6 J

• 9 J

• 18 J

Which of the following statements is true about nonconservative forces?

• They do not depend on the path taken.

• They conserve mechanical energy.

• They add or remove mechanical energy from the system.

• They are associated with potential energy.

What type of energy is involved when a radio transmits signals?

• Sound energy

• Thermal energy

• Radiant energy

• Electrical energy