8.1.2 Changes in Force and Motion Practice #1

Front

What is the relative velocity of two objects moving in the same direction at the same speed?

Back

0 m/s

Front

What do we use to determine whether an object is in motion or at rest?

Back

Reference points

Front

If two objects are moving towards each other at the same speed, how do you calculate their relative speed?

Back

Add their speeds together.

Front

What happens to an object's speed when it accelerates?

Back

It can speed up, slow down, or change direction.

Front

What is the term for the path an object takes while moving?

Back

Direction

Front

What is the difference between distance and displacement?

Back

Distance is the total path length, while displacement is the shortest path from start to end.

Front

What is acceleration?

Back

The rate of change of velocity of an object.

Front

What is a frame of reference?

Back

A system for specifying the precise location of objects in space and time.

Front

How does gravity affect motion?

Back

It pulls objects towards the center of the Earth, affecting their speed and direction.

Front

What is inertia?

Back

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