Amplify Force and Motion, Chapters 1 and 2

Front

What are the five ways an object's motion can change?

Back

start, stop, change direction, speed up, slow down

Front

What is the term for the force that opposes the motion of an object across a surface?

Back

friction

Front

What is velocity?

Back

The speed of an object in a particular direction.

Front

What happens to an object when a force is applied to it?

Back

Its motion can change: it can start moving, stop, speed up, slow down, or change direction.

Front

What is the difference between speed and velocity?

Back

Speed is how fast an object is moving, while velocity includes both speed and direction.

Front

What is inertia?

Back

Inertia is the tendency of an object to resist changes in its state of motion.

Front

What is acceleration?

Back

Acceleration is the rate at which an object's velocity changes over time.

Front

What is a force?

Back

A force is a push or pull that can cause an object to move, stop, or change direction.

Front

What is the effect of friction on motion?

Back

Friction slows down or stops the motion of an object.

Front

What does it mean for an object to be in motion?

Back

An object is in motion if it changes its position relative to a reference point.