G4.5.4-1 Multiple forces

A force that drags you back when you are swimmingA

A force which wears away the tread on tyres.

A force that pulls you towards the centre of the Earth.

More than one.

• multiple

• air resistance

A force that slows things down that are moving through air.

• 
  multiple

• 
  

  air resistance

Place a ping pong ball on the table.

1.What forces are acting on the ball?

Flick the ping pong ball with your finger so that the ping pong ball moves.

1. What forces are acting on the ball now?

Look at the example of Sofia rolling a ball. What are several forces acting on a

ball: Sofia pushes the ball.

Look at the example of Sofia rolling a ball. What are several forces acting on a ball:

Name the force that pulls the ball

down towards the Earth.

Look at the example of Sofia rolling a ball. What are several forces acting on a ball:

Name the force that pulls the ball

3. The forces that slows down the ball once it is moving on the floor.