Forces - Autumn 1

Explain why air resistance can be useful.

Give an example and explain why some animals are streamlined.

What is the use of a lever?

• To push something along.

• To change the speed of an object.

• To make a small force lift a heavier load.

• To pull an object up.

Which of these planets has a great gravitational pull than the others?

• Mercury

• Earth

• Mars

• Jupiter

Forces can change an objects...

• speed

• direction

• shape

• all three

If you roll a ball across the carpet, which forces will cause it to slow down and then stop?

• magnetic pull

• gravity

• gravity, friction and air resistance

• up-thrust

What are forces measured in?

• Newtons

• Kilometres

• Miles

• Watts

Which of the following is not a force?

• Gravity

• Up thrust

• Friction

• Electricity

What is a force?

• A source of energy

• A push or pull

• A magnet

• A measurement

What force causes a bag of books to feel heavy when you pick it up?

• Water resistance

• Friction

• Gravity

• The books