Forces Exam Review

Front

What is another name for normal force?

Back

Support

Front

Which law explains why Gracie's empty grocery cart rolls farther than the full one?

Back

Newton's 2nd Law

Front

Why is it easier to do a wall push up compared to a push up on the floor?

Back

Against the wall you only have to apply a force that is a fraction of your bodyweight.

Front

What force caused a skateboarder on a flat sidewalk to come to a stop?

Back

Friction between the wheels and sidewalk.

Front

What does Newton's 1st Law state?

Back

An object at rest stays at rest, and an object in motion stays in motion unless acted upon by a net external force.

Front

What is inertia?

Back

The tendency of an object to resist changes in its state of motion.

Front

What is the formula for calculating force?

Back

Force = Mass x Acceleration (F = ma).

Front

What is friction?

Back

A force that opposes the motion of an object.

Front

What is the relationship between mass and weight?

Back

Weight is the force of gravity acting on an object's mass (Weight = Mass x Gravity).

Front

What does Newton's 3rd Law state?

Back

For every action, there is an equal and opposite reaction.