Friction, Gravity and Force

Front

What is friction?

Back

Friction is a resistance force that opposes the motion of an object.

Front

What is the force of gravity acting on an object called?

Back

The force of gravity acting on an object is called its weight.

Front

What two factors affect the magnitude of the force of gravity between two objects?

Back

Mass and Distance.

Front

How do you calculate net force when forces are acting in opposite directions?

Back

You subtract the forces.

Front

True or False: Forces have strength and direction.

Back

True.

Front

What is the relationship between mass and weight?

Back

Weight is the force of gravity acting on an object's mass.

Front

What happens to the force of gravity if the distance between two objects increases?

Back

The force of gravity decreases.

Front

What is the unit of force in the International System of Units (SI)?

Back

The unit of force is the Newton (N).

Front

What is the effect of friction on motion?

Back

Friction opposes motion, making it harder for objects to move.

Front

What is the difference between static friction and kinetic friction?

Back

Static friction acts on objects that are not moving, while kinetic friction acts on moving objects.