Newton's Third Law

Newton's Third Law

(Need Books!) pg 25​

Open Ended

What is the difference between a scientific law and a scientific theory?

The Difference

Scientific Theory - describes how a phenomenon works

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Scientific Law - ​describes what will happen in a given situation

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BOTH - provably true​

Science | Newton's Third Law

For every action there is an equal and opposite reaction.​

Fill in the Blanks

Force: a _____ or _____ on an object.

Push or pull on an object.

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For every action there is an equal and opposite reaction.

Force

Fill in the Blanks

Newton's Third Law: For every _____ there is an _____ and _____ reaction.

For every action there is an equal and opposite reaction.

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Newton's Third Law

Multiple Choice

What is the first name of the Newton who presented his three laws of motion?

• Brad

• Chad

• Isaac

• William

English scientist; 1643-1727

Isaac Newton

Newton' was one of the first to describe the effects of gravity and the factors that affect gravity (mass and distance between objects)

Gravity

Newton's three laws of motion describe the relationship between forces and motion

Motion

Multiple Choice

Besides his laws of motion, what law is Newton famously connected with?

• Law of Gravity

• His mother-in-law

• Horses aren't allowed on public sidwalks in Marshalltown

• Law of Relativity

Multiple Select

What was one of the "old" ideas Newton studied? (That has since been proven incorrect!)

• Earth is the center of our solar system

• The sun orbits the Earth

• Sun is the center of the solar system

• Apples fall on your head

Fill in the Blanks

When force is exerted on an object, the force can cause the object to

.

​1 pound is approximately equal to 4.5 Newtons.

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So if you are 100 pounds, it would take 450 Newtons of force to lift you off of the ground​

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Pounds to Newtons

The push or pull on an object​

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The strength of a force is how strong or weak the push or pull is (measured in Newtons - N)​

​Force Definition

Forces (page 28)

For every action there is an equal and opposite reaction.

Open Ended

1. What is a force and what happens when it is exerted on an object?

2. When do forces occur?

Question Answers

1. What is a force and what happens when it is exerted on an object?

A force is a push or pull ​on an object; the object accelerates

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2. When do forces occur?

​When two objects interact

Physics | Newton's Third Law

For every action there is an equal and opposite reaction.

Open Ended

3. How are forces described?

4. How are forces measured and modeled?

Question Answers

3. How are forces described?

​Forces are described using strength and direction.

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4. How are forces measured and modeled?

​Forces are measured in units called newtons. They are modeled using arrows.

Physics | Newton's Third Law

For every action there is an equal and opposite reaction.

Action -

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Reaction -​

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Explain the action/reaction

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​What is this system going to feel like for the person with blue gloves?

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What will this feel like for the person with red gloves?​

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Explain

Draw

Draw an action/reaction system.