Year 7 - Energy transfers (Lesson 1 and 2)

Which two of these are energy stores?

• solar power energy store

• kinetic (movement) energy store

• Elastic potential energy store

• Hot and cold energy store

Answer explanation

There are 7 energy stores you must remember!

Which two of these energy stores?

• bungy rope energy store

• magnetic energy store

• chemical energy store

• higher up energy store

Answer explanation

You need to know these 7 energy stores

Everything has some energy it is __________ energy store

• elastic

• electrostatic

• magnetic

• thermal

Answer explanation

Even if you think something is very cold (like a spoon in the arctic!) it will still have energy in its thermal energy store

Food, fuel and batteries are examples of...

• chemical energy stores

• energy

• thermal energy stores

• electrostatic energy stores

Answer explanation

The chemical energy store in the muscle cells in your fingers is decreasing as this energy is transferred to the kinetic energy store of the cells as you tap the right answer on your iPad!

Anything in a gravitational field can fall and therefore has...

• an electrostatic energy store

• a kinetic energy store

• an elastic potential energy store

• a gravitational potential energy store.

Answer explanation

If the ground suddenly moved away from under your feet, your gravitational energy store would suddenly decrease rapidly and your kinetic energy store would increase rapidly

When anything happens to an object, energy is _______ from one store to another.

• borrowed

• transferred

• lent

• doubled

Answer explanation

The store of energy you transfer to increases and the store of energy you transfer from decreases.

There are 5 main PATHWAYS you can transfer energy between energy stores. Which two answers below are examples of these pathways?

• heating

• jumping

• radiation (light)

• squashing

There are 5 main PATHWAYS you can transfer energy between energy stores. Which two answers below are examples of these pathways?

• air blowing

• electric current

• noise

• mechanically (by forces)

Answer explanation

Air blowing is a mechanical forces pathways and noise is a mechanical sound pathway.

When you drop an object, energy is transferred from its ____________ energy store to its ________ energy store

• mechanical, chemical

• kinetic, gravitational potential

• electrostatic, kinetic

• gravitational potential, kinetic

When you stretch an elastic and then release it, the energy in the __________ store is rapidly transferred to the _________ energy store

• gravitational potential, kinetic

• magnetic, kinetic

• kinetic, elastic potential

• elastic potential, kinetic