Cambridge Secondary (7-9). Stage 7. MCE Science. Student Book - Unit 11: Energy

Some ways we generate electricity are sustainable and some are not. What are the best ways to generate electricity without damaging the environment?

A mug, a laptop and a pen are standing on a desk. Which one has more gravitational potential energy?

You use many different forms of energy every day. In what ways have you used energy today? List all of them.

Many nuclear power stations have been built around the world to generate electricity using nuclear energy. People disagree on whether this is a positive or negative option for energy.

In small groups, do some research on the advantages and disadvantages of using nuclear power stations. Give at least two advantages and two disadvantages.

Write down two examples of each of the following types of energy stores:

a kinetic energy

Write down two examples of each of the following types of energy stores:

b gravitational potential energy

Write down two examples of each of the following types of energy stores:

c chemical energy

Write down two examples of each of the following types of energy stores:

d elastic potential energy

Write down two examples of each of the following types of energy stores:

e thermal energy

Name the form(s) of energy stored in each of the following:

a a hand stretching an elastic band

Name the form(s) of energy stored in each of the following:

b a child jumping up into the air

Name the form(s) of energy stored in each of the following:

c a can of petrol

Name the form(s) of energy stored in each of the following:

d a cup of hot tea

Name the form(s) of energy stored in each of the following:

e a teenager running

A moving ball has kinetic energy. How does the energy transfer from the kicking foot (store of chemical energy) to the kinetic energy store of the ball?

If you have a mug of hot water and a glass of cold water, which one will have more thermal energy?

If you mix the hot and cold water in a bowl, how does the amount of thermal energy in the bowl of water compare with the original mug of hot water?

What are the energy transfers when

a you kick a ball;

What are the energy transfers when

b you charge your mobile phone;

What are the energy transfers when

c a crane lifts a crate;