Gravitational and Frictional Force VI

Gravity is a contact force that acts between separate objects.

• True

• False

A meteor falls down through the Earth's atmosphere.

• Gravity

• Friction

Where is the gravitational force directed as you stand on the floor?

• backward

• downward

• forward

• upward

A boy rides a bicycle on the road.

• Gravity

• Friction

A car parked on a slopping road

• Gravity

• Friction

Friction is the force that opposes the pull of gravity.

• True

• False

Gravitational force between objects increases as the distance between them decreases.

• True

• False

Which of the following best describes friction? It is a force that occurs __________.

• between solids

• only on rough surfaces

• between solids and liquids

• when surfaces touch each other

How distance between two objects affects the pull of gravity? The _______.

• lesser the distance, the lesser the gravitational pull between them

• greater the distance, the lesser the gravitational pull between them

• greater the distance, the greater the gravitational pull between them

• gravitational pull between them depends on their weights

A ball thrown in the air comes down.

• Gravity

• Friction