Apologia Physical Science Middle School Module 7

Friction that opposes motion once the motion has already started

• Inertia

• Friction

• Kinetic Friction

• Static Friction

The tendency of an object to resist changes in its velocity

• Inertia

• Friction

• Kinetic Friction

• Static Friction

Friction that opposes the initiation of motion

• Inertia

• Friction

• Kinetic Friction

• Static Friction

A force that opposes motion, resulting from the contact of two surfaces

• Inertia

• Friction

• Kinetic Friction

• Static Friction

You push on a box and are unable to move it. What force opposes your push?

• static friction

• kinetic friction

• rolling friction

• air resistance

Which of Newton's laws is sometimes called the law of inertia?

• Newton's first law

• Newton's second law

• Newton's third law

• the law of universal gravitation.

A change in which of the following affects the weight of an object?

• air resistance

• friction

• acceleration due to gravity

• velocity

For every action force there is a

• friction force

• net force

• unbalenced

• reaction force

What force holds the nucleus of atoms together?

• electromagnetic

• strong

• gravitational

• weak

A physics student climbs a tree. To measure how high she has climbed, she drops a rock and times its fall. It takes 1.3 seconds for the rock to hit the ground. How many feet has she climbed?