SB1 Types of forces

What are the two main groups of forces?

• Static and dynamic forces

• Contact and non-contact forces

• Gravitational and magnetic forces

• Electric and magnetic forces

What is air resistance?

• A force that helps things move in air

• A force that acts against movement in air

• A force that pushes upwards

• A non-contact force

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What type of force acts between two objects that are not physically touching?

• Contact force

• Non-contact force

• Frictional force

• Tension force

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What causes a satellite to orbit Earth?

• Air resistance

• Friction

• Gravity

• Electrostatic force

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What is an example of a force changing the shape of an object?

• A balloon being inflated

• A car accelerating

• A satellite orbiting

• A book falling

The force that pushes upwards in liquids and gases is called

• upthrust

• normal reaction force

• friction

• water resistance

Gravity is a

• contact force

• non-contact force

• normal reaction force

• frictional force

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We can see forces

• True

• False