Physics Energy Quiz

Which of the following is the correct formula for kinetic energy?

• KE=1/2mv²

• KE=mgh

• KE=mv

• KE=1/2gh²

Gravitational potential energy depends on which of the following?

• Mass and time

• Height and speed

• Mass, gravity, and height

• Speed and acceleration

Which unit is used to measure energy in physics?

• Newton

• Joule

• Watt

• Ampere

A 2 kg object is moving at 3 m/s. What is its kinetic energy?

• 6 J

• 9 J

• 12 J

• 18 J

What happens to potential energy when an object is raised higher above the ground?

• It decreases

• It becomes zero

• It increases

• It remains constant

Which of these is an example of thermal energy?

• A compressed spring

• A ball held at height

• Hot water in a kettle

• A battery

What is the specific heat capacity (SHC) of a substance?

• Heat needed to raise 1 kg by 1°C

• Heat required to change state

• Energy stored in molecules

• Energy released during combustion

Which factor does NOT affect thermal energy?

• Mass

• Temperature change

• Volume

• Specific heat capacity

Latent heat is involved in which process?

• Temperature increase

• State change

• Acceleration

• Kinetic motion

Which energy conversion occurs when a person jumps off a cliff into water?

• Thermal to chemical

• Kinetic to potential

• Potential to kinetic

• Sound to potential