Motion Lesson Introduction

A _____________________ must be exerted on an object at rest to cause it to move.

• weight
• inertia
• force
• gravity

A change in the position or place of an object is ___________________________

• gravity
• motion
• lubricant
• centripetal force

The measure of the force of gravity on your body is your _________________

• height
• length
• weight
• age

How is gravity affected by mass?

• the larger the mass of the object, the greater the gravity
• small objects have no gravity
• gravity is not affected by mass of objects, whether large or small

which force produces a change in motion?

• unbalanced force
• balanced force
• gravitational force
• frictional force

What is a force that opposes motion between two surfaces?

• friction
• acceleration
• velocity
• motion

When an unbalanced force acts on an object, the force...

• Changes the motion of the object
• Is canceled by another force 
• Does not change the motion of the object 
• Is equal to the weight of the object 

An object at rest stays at rest unless acted upon by an outside force is part of ...

• Newton's First Law
• Newton's Second Law 
• Newton's Third Law
• Darwin's Theory of Natural Selection

The product of an object's mass and its acceleration is called the 

• Momentum
• Gravitation 
• Velocity 
• Net Force 

What is speed?

• how far you go
• how much distance is covered over a period of time
• how fast you accelerate
• the change in the location of a object