Lesson 1 Position and Motion

Speed and direction are included in which of the follow?

• speed
• reference point
• velocity
• acceleration

The starting point you choose to describe the location, or position, of an object is a __________.

• reference direction
• position
• reference point
• distance

An object’s distance in a certain direction from a reference point is its ____________.

• motion
• position
• reference point
• reference distance

What is the process of changing position called?

• velocity
• motion
• speed
• displacement

The measure of the distance an object travels per unit of time is the _________ of the object.

• velocity
• speed
• distance
• displacement

What is needed to determine the position of an object?

• direction
• time
• distance
• speed
• velocity

A storm moving southeast at 35 mph is an example of?

• acceleration
• speed
• force
• velocity

Which is the best description for a balanced force?

• When an object moves because of another force.
• When a force has the same mass as another force.
• When one force acting on he object is greater than the other.
• When an object does not move or moves at a constant speed.

Friction always acts in a direction (a)   to the direction of motion.

Which is the best description for a unbalanced force?

• An object at rest.
• When a force has the same mass as another force.
• When one force acting on the object is greater than the other.
• When an object does not move or moves at a constant speed.