Module 3 test review forces and motion

Front

What is centripetal force?

Back

Centripetal force is the force that acts on an object moving in a circular path, directed towards the center of the circle.

Front

What direction does centripetal force act?

Back

Towards the center of the path.

Front

What is static friction?

Back

Static friction is the force that prevents an object from moving when it is at rest.

Front

When does static friction occur?

Back

Static friction occurs when an object cannot be moved.

Front

What type of friction occurs when an object rolls across a surface?

Back

Rolling friction.

Front

What is the net force acting on an object?

Back

The net force is the total force acting on an object after all the forces are combined.

Front

How do you calculate net force?

Back

Net force = applied force - frictional force.

Front

What is the weight of an object in free fall?

Back

An object is considered weightless when it is in free fall.

Front

What happens to an object in free fall?

Back

It experiences only the force of gravity and no other forces acting on it.

Front

What is the formula for calculating weight?

Back

Weight = mass x gravity (W = m x g).