GCSE Science - Energy - KE & GPE

Kinetic energy is measured in.....

• kilograms

• metres per second

• Joules

• metres

Gravitational potential energy is measured in.....

• kilograms

• metres per second

• Joules

• metres

Any form of energy is always measured in.....

• kilograms

• metres per second

• Joules

• metres

Mass is measured in...

• grams

• kilograms

• metres

• metres per second

Velocity and speed are measured in.....

• kilograms

• metres per second

• Joules

• metres

What is the equation to work out kinetic energy?

• mass x velocity

• 0.5 x mass x velocity

• 0.5 x mass x velocity³

• 0.5 x mass x velocity²

The mass of a car is 2500kg. It travels at 20m/s. Calculate the kinetic energy.

• 500,000J

• 25,000J

• 50,000J

• 1,000,000J

The mass of a toy is 5.6kg. It travels at 2m/s. Calculate the kinetic energy.

• 10.2 J

• 11.2 J

• 12.2 J

• 13.2 J

What is the equation to work out mass from kinetic energy?

• kinetic energy x 0.5 x velocity²

• kinetic energy / (0.5 x velocity)

• kinetic energy / (0.5 x velocity²)

• 0.5 x mass x velocity²

The kinetic energy of a trolley is 22.5 J. The speed of the trolley is 3 m/s. What is the mass of the trolley?

• 5 kg

• 15 kg

• 2.5 kg

• 10 kg