Newton's First Law of Motion Review

An object's tendency to resist (not) change its state of motion.

• gravity

• force

• inertia

• friction

If an object in motion is not acted on by an unbalanced force, it will continue with the same speed and direction.

• True

• False

If an object is speeding up, it is accelerating.

• True

• False

According to Newton’s first law of motion, a moving object that is not acted on by an unbalanced force will

• remain in motion.
• eventually come to a stop.
• change its momentum.
• accelerate.

Newton's 1st Law is also called the Law of ...

• Friction

• Inertia

• Unbalanced forces

• Newtons

An object in motion tends to stay in motion unless an ___ force acts on it.

• unbalanced
• balanced

What kind(s) of objects have inertia?

• all objects with mass
• only objects at rest
• only objects in motion
• only objects whose motion is being changed

Match these vocabulary terms

• Friction

• Resistance between two moving objects

• The force that pulls inward

• Gravity

• Force

• To stay the same; to not change

• amount of matter

• A push or a pull

• Inertia

• Mass

Friction...

Groups:

(a) More friction

,

(b) Less friction

• 
• 
• 
• 
• Rough surface

• 
• 
• smooth surface

How are mass, gravity, and inertia related?

Groups:

(a) More Mass

,

(b) Less Mass

• More Gravity

• 
• 
• More Inertia

• Less gravity

• Less inertia