KS3 Forces Quiz

A force can be described as ________

• A push or a pull.
• An up or a down.
• A left or a right.
• Movement.

Which of these is not a contact force? 

• Tension
• Gravitational force
• Reaction force
• Friction

Which one of the following statements is true?  

• Gravitational force only exists on Earth.
• Gravitational force can attract and repel.
• Gravitational force causes air resistance.
• Gravitational force is always attractive.

In which situation is friction a useful force? 

• On a playground slide.
• In the moving parts of gears.
• Car tyres gripping the road.
• In a bicycle chain.

What is a general name for a force that makes a vehicle move? 

• Thrust
• Friction
• Power
• Air resistance

When a force can act without touching the object, what type of force is it?

• Friction
• Contact
• Non-contact
• Air resistance

Which scientific instrument is used to measure forces? 

• Scale
• Force meter
• Force device
• Top pan balance<br />

In which direction does air resistance always act? 

• Upwards
• Downwards
• Against the direction of movement.
• Behind boat sails.

The name for the overall force acting on an object is

• The balance force.
• The strongest force.
• The weight force.<br />
• The resultant force.

What is the size and direction of the normal reaction force which would balance a 50N dog? 

• 5 kg upwards
• 50 N upwards
• 50 N downwards
• It is already balanced.