Newton's Laws of Moti0n

TEKS 8.7B, 8.5B

Newton’s Laws of Motion

KEY IDEAS

• What are Newton’s laws?
• How do Newton’s laws explain motion in systems?

Words to Know

System
Newton’s first law
Newton's second Law
Newton’s third law

Copyright © Savvas Learning Company LLC. All Rights Reserved. Savvas is not responsible for any modifications made by end users to the content posted in its original format.

Copyright © Savvas Learning Company LLC. All Rights Reserved. Savvas is not responsible for any modifications made by end users to the content posted in its original format.

What are Newton’s Laws?

Newton’s Laws of Motion

First
Law

Second
Law

Third
Law

Inertia

Force and
Acceleration

Action and
Reaction

A body at rest will remain at rest,
and a body in motion will remain
in uniform motion, unless acted
upon by an external force.

The force acting upon an object is equal to the mass of an object times its acceleration.

For every action there is an
equal and opposite reaction.

Open Ended

Objects that are motionless or have uniform motion tend to stay that way unless the forces acting upon them are removed.

Open Ended

Newton’s second law is represented by the equation F = m + a.

Open Ended

For every action there is an equal reaction in the same direction.

Copyright © Savvas Learning Company LLC. All Rights Reserved. Savvas is not responsible for any modifications made by end users to the content posted in its original format.

Fix Newton’s Laws Answers

Describe Provide new endings for the flawed statements
of Newton’s laws.

1.

Objects that are motionless or have uniform motion tend to

stay that way unless the forces acting upon them are removed.

…unless an external force acts upon them.

2.

Newton’s second law is represented by the equation F = m + a.

… represented by the equation F = ma.

3.

For every action there is an equal reaction in the same direction.

… there is an equal and opposite reaction.

Multiple Choice

A train stops suddenly at the train station and everyone in the cars continue moving forward. 

• Newton's First Law

• Newton's Second Law

• Newton's Third Law

Multiple Choice

If a bowling ball and a basketball are rolled with the same amount of force, the basketball will accelerate faster. 

• Newton's First Law

• Newton's Second Law

• Newton's Third Law

Multiple Choice

A teacher sitting in her rolling chair pushes against the wall and moves in the opposite direction. 

• Newton's First Law

• Newton's Second Law

• Newton's Third Law

Multiple Choice

A model rocket flies upwards as the engine combusts and creates a force towards the Earth. 

• Newton's First Law

• Newton's Second Law

• Newton's Third Law

Multiple Choice

A semi-truck and a small car are traveling at the same speed. They each hit the brakes at the same time, but the truck takes much longer to slow down. 

• Newton's First Law

• Newton's Second Law

• Newton's Third Law

Multiple Choice

A rollercoaster takes off quickly and everyone’s head is thrown backwards towards the headrest. 

• Newton's First Law

• Newton's Second Law

• Newton's Third Law

Multiple Choice

A magician quickly pulls a tablecloth out from under a set of dishes. The dishes remain in the same spot. 

• Newton's First Law

• Newton's Second Law

• Newton's Third Law

Math Response

A soccer ball was kicked. It had a mass of 0.42 g and it accelerated at 25 m/s. What was the force?

Type answer here

Correct Answer: 10.5

Deg^°

Rad

Math Response

An object with a mass of 300 kg is observed to accelerate at the rate of 4 m/s. Calculate the force.

Type answer here

Correct Answer: 1200

Deg^°

Rad

Math Response

A force of 20 N acts upon a 5 kg object. Calculate the acceleration.

Type answer here

Correct Answer: 4

Deg^°

Rad