1. Newton’s Three Laws of Motion
Write Newton’s three Laws of motion in your notes. Leave room under each to add additional notes. You should already have the first one.
Objective(s)/SWBAT (Students will be able to):
State Newton’s 2nd law of motion
State Newton’s 3rd law of motion
Activities:
Newton’s 2nd law
Discuss proportionality
F=mA, f=Ma etc.
Pull a cart down the call with a constant force.
Newton’s 3rd law
Demonstrate collisions
relate to the 2nd law
throw a bowling ball while standing on a cart.
Closure:
Quick quizo
What causes a ball to roll down an incline?
Assessment:
Test
Keystones: 3.2.B

2. Today Students will be able to: Cite Newton’s 1st Law of motion
Cite Newton’s 2nd Law of motion
Cite Newton’s 3rd Law of motion
Keystones: 3.2.B

3. Newton’s First Law
An object at rest remains at rest and an object in motion remains in motion unless acted on by an external, unbalanced force.
Inertia
Drop eggs in water before stating the first law.
Demonstrate with bowling ball and ping pong ball
Hover puck
Take the hover craft to the hall
Keystones: 3.2.B

4. Newton’s Second Law
The acceleration of an object is inversely proportional to its mass and directly proportional to the net unbalanced force acting on it.
a  1/m
a  F
F=ma
F=ma
Use bowling ball and ping pong ball again.
Apply a constant force to a cart and watch it accelerate.
Keystones: 3.2.B

5. Newton’s Third Law
For every action there is an equal but opposite reaction.
Action-Reaction
Show collisions with force sensors and carts
Try throwing a bowling ball while standing on a cart
Keystones: 3.2.B

6. The Acceleration Due to Gravity
Galileo investigated the motion of falling objects. Read about Galileo’s experiments on pages 96 – 99. He was called the father of science because he believed that experimental results were needed to prove an idea.
Drop objects
Keystones: 3.2.B