Year 8 Physics - Energy Forms Formative Quiz

What is the law of conservation of energy?

• Energy can be created and destroyed.

• Energy can be transformed from one form to another, but cannot be created or destroyed.

• Energy is always lost in the form of heat.

• Energy can only be stored, not used.

Which of the following is an example of kinetic energy?

• A stretched rubber band.

• A moving car.

• A battery.

• A book on a shelf.

What type of energy is stored in a stretched rubber band?

• Gravitational potential energy.

• Chemical potential energy.

• Elastic potential energy.

• Kinetic energy.

Which form of energy is associated with the height of an object above the ground?

• Kinetic energy.

• Chemical potential energy.

• Elastic potential energy.

• Gravitational potential energy.

What is the formula for kinetic energy?

Which of the following is an example of chemical potential energy?

• A moving bicycle.

• A compressed spring.

• Food.

• A rock at the top of a hill.

What type of energy is transferred as heat?

• Kinetic energy.

• Thermal energy.

• Chemical potential energy.

• Gravitational potential energy.

What is the unit of energy in the metric system?

• Joule.

• Newton.

• Watt.

• Pascal.

Which of the following best describes energy efficiency?

• The total energy input divided by the useful energy output.

• The useful energy output divided by the total energy input.

• The total energy input minus the energy lost as heat.

• The energy lost as heat divided by the total energy input.

What type of energy transformation occurs when a ball is dropped from a height?

• Kinetic to potential energy.

• Potential to kinetic energy.

• Chemical to thermal energy.

• Elastic to chemical energy.