Newtons rd 3 Law phys 7 2 17

phys 7 2 17 3 64 1 calcul icist us Who is Newton? f

In this lesson, we will be focusing on Newton’s 3 rd Law of Motion

Newton’s 3 rd law in Space ESA –stop at summary of 3 laws

To recognize Newton’s 3 rd Law of Motion look for pairs of forces… “action”

Newton’s 3 rd Law Key Idea is action-reaction The Law says… for every action

Action At Rest… When you sit in a chair… (action force) force the chair

At Rest… Reaction Action When you lean against a wall… (action force) force the

For moving things… an action force in one direction creates an equal and opposite

an action force in one direction creates an equal reaction force in the opposite

If you haven’t already figured it out… the key idea of Newton’s 3 rd

Now, it’s your turn to see if you can identify Newton’s 3 rd Law

Extras. . More videos showing Newton’s 3 rd Law

Dr. Carlson’s Science Theater Dr Carlson

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Newton’s rd 3 Law

phys 7 2 17 3 64 1 calcul icist us Who is Newton? f o s Law n o i t Mo mat r e m o n o tr as What is physics? hem atic ian Law of Univer sal Gravita tion

Isaac Newton Bio

In this lesson, we will be focusing on Newton’s 3 rd Law of Motion This law is all about pairs of forces called… action and reaction forces Let’s learn a little about these forces…

Newton’s 3 rd law in Space ESA –stop at summary of 3 laws

To recognize Newton’s 3 rd Law of Motion look for pairs of forces… “action” is the force that happens first, causing a “reaction” force to happen These equal forces happen in opposite directions.

Newton’s 3 rd Law Key Idea is action-reaction The Law says… for every action (force) there is an equal and opposite reaction (force) Let’s look at some examples.

Action At Rest… When you sit in a chair… (action force) force the chair must be pushing back… (reaction force) force Reaction these forces are equal in strength and opposite in direction, otherwise you’d land on the floor!

At Rest… Reaction Action When you lean against a wall… (action force) force the wall must be pushing back equally hard… (reaction force) force otherwise you’d go through the wall!

For moving things… an action force in one direction creates an equal and opposite reaction force in the opposite direction Reaction Action

an action force in one direction creates an equal reaction force in the opposite direction Reaction Action

FMA Live – Action/Reaction FMA_Live

If you haven’t already figured it out… the key idea of Newton’s 3 rd Law is Action – Reaction The Law says… For every action (force), (force) there is an equal and opposite reaction (force)

Now, it’s your turn to see if you can identify Newton’s 3 rd Law in these demonstrations… Look for equal action – reaction force pairs going in opposite directions

Rifle Recoil Rifle. Recoil

Cannon

Shuttle Launch

Newton’s Sled Newton_Sled

Newton’s Cradle i. Pod_Cradle

Dominoes

Space Tools

Extras. . More videos showing Newton’s 3 rd Law

Dr. Carlson’s Science Theater Dr Carlson

Equal Mass Equal_Mass

Unequal Mass Unequal_Mass

Balloon Cars