7I Light Assessment

What is the unit of measuring energy?

• Joule (J)

• Grams (g)

• Celsius (C)

• Watts (W)

Who needs more energy?

• 5 year old child

• 13 year old teenager

• adult

• Very active adult

Food is an example of what store of energy?

• Kinetic energy store

• Chemical energy store

• gravitational potential energy store

• thermal energy store

What will happen if you eat food with more energy than you need?

• Lose weight

• nothing

• put on weight

How is energy transferred? (Tick all options)

• Heating

• Light

• Sound

• Electricity

• Forces

A moving object has what energy store

• Kinetic energy store

• Gravitational potential energy store

• thermal energy store

• nuclear energy store

The Sun has what energy store

• Kinetic energy store

• Gravitational potential energy store

• chemical energy store

• nuclear energy store

Anything in a high position has what type of energy store

• Kinetic energy store

• Gravitational potential energy store

• chemical energy store

• nuclear energy store

A falling object transfers energy from the gravitational store to the kinetic store by...

• light

• sound

• forces

• electricity

In the pendulum, the object does not hit the man because

• some energy is transferred to the thermal energy store of the surroundings

• energy is lost to the chemical store of the surroundings

• energy is destroyed by forces

• there was not enough energy to hit him