GRADE 5 UNIT 5

A force that attracts or pulls all objects towards the Earth

• Normal force

• Gravity force

• Applied force

Which picture shows an applied force?

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Three books are resting on a table without falling because they exert a downward force on the surface due to gravity, yet remain stable. It is because ....

• Gravity force

• Normal force

• Applied force

A natural satellite of the Earth.

• Moon

• Sun

• Mercury

This serves as one of the functions of an artificial satellite.

• provide TV signals and GPS used on ships, aeroplanes and some cars.

• Taking a picture

• generate electricity

A force that always works in the direction opposite to the direction the object is moving.

• Friction

• Normal force

• Applied force

Two types of friction

• normal force and applied force

• air resistance and water resistance

• gravity force

Ahmad moves a table by pulling it. He applies an .... force.

A parachute uses .... resistance to work. Air resistance pushes against falling objects and slows them down.

Both water resistance and air resistance are sometimes called ....