Reviewing forces

True or false: Forces can change the size, shape and speed of an object

• True

• False

The car in this picture will move ...

• up.

• down.

• forward.

• back.

A force pushing down on the car is ...

• friction.

• thrust.

• upthrust.

• weight.

A force which will pull the car back is ...

• friction.

• thrust.

• upthrust.

• weight.

Forces are measured in ...

• Newtons (N).

• grams (g).

• metres (m).

• seconds (s).

A Newton (N) is the same as ...

• 1g.

• 10g.

• 100g.

• 1000g.

If the apple is 200g it's weight is..

• 2N.

• 20N.

• 200N.

• 2000N.

The sumo has a mass of 120kg, his weight in Newtons is

Weight =

• mass x gravity (10)

• mass / gravity (10)

• mass + gravity

• mass - gravity

The force pushing the boat up is ...

• weight.

• friction.

• upthrust.

• magnetism.