Year 9’s quiz on Energy

What is the equation for Gravitational Potential Energy?

• mgh

• mgk

• egh

• fxy

YOU NEED A CALCULATOR

Timmy chucks a ball in the air, it goes up 27.64m, the ball weighs 0.04kg and the gravitational field strength is 9.81. What is the gravitational potential energy at the top of the throw? GPE = mgh

• 13.45J

• 10.85J

• 11.75J

• 12.65J

What energy is used in ICBMs (nuclear missiles) in the explosion?

• Magnetic

• Nuclear

• Elastic

• Gravitational

What is the equation for elastic potential energy?

• Nuclear

• Kinetic

• Thermal

• Magnetic

What is the energy store called in anything that stretches, like a spring?

• Kinetic

• Elastic

• Thermal

When an apple is thrown up, what is it gaining?

• Thermal Energy

• Mechanical Energy

• Gravitational Potential Energy

Can energy be created and destroyed?

• Yes

• No

• Maybe

What energy store increases when brakes are applied in a car?

• Gravitational Potential Energy

• Thermal Energy

• Elastic Energy

Which two ways can energy be transferred?

• Melting

• Heating

• Gasing

• Radiation