Introduction to Forces

Forces act upon an object by pushing or

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Which of these does a force not do to an object?

• Change its shape

• Change its direction

• Change its speed

• Change its colour

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What is being described here?

"A force that occurs when two objects are touching is a..."

• contact force

• non-contact force

Match this definition to the force:

"This occurs when two surfaces are sliding, or trying to slide, across each other."

• friction

• air resistance

• gravity

• upthrust

True or false:

Water resistance pushes objects that are in water upwards.

• False

• True

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Match this definition to its force:

This force occurs when an object moves through air.

• air gravity

• air resistance

• air thrust

• friction

Match this definition to its force:

This force acts upon objects moving through water.

• water friction

• upthrust

• water gravity

• water resistance

Gravity is a force that pushes objects towards Earth.

• true

• false

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Which force acts by attracting and repelling objects?

• magnetic force

• a fridge magnet

• metal

• gravitational force

• object resistance

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