Forces Quiz

A force can be described as ________

• A push or a pull.

• An up or a down.

• A left or a right.

• Movement.

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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.

Which of these is not a contact force? 

• Tension

• Gravitational force

• Reaction force

• Friction

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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.

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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

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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.

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