Tilly and Lonnie had an argument about who was the superior wit,
Einstein or Newton.
Einstein or Newton.
Tilly pointed out that “... Einstein needed Newton’s Laws as an anchor
for his theories.”
for his theories.”
NEWTON’S 1st LAW
A body in motion tend to stay in motion and a body at rest tends to stay at rest.
WACKY WAGON
MATERIALS: Bottom of shoe box, string, 2 ping pong balls
STEP ONE; Make a wagon by attaching string to one of the short sides (width)
STEP TWO: Place ping pong balls in the back of the wagon
STEP THREE: Pull the wagon forward several feet and then stop quickly
What’s Up? When the box stopped moving it was at rest. The ping pong balls
continued moving.
continued moving.
From SCIENCE “Flip It” and “Drop It” demonstrate this too
NEWTON’S 2nd LAW
Force (f) equals mass (m) times acceleration (a) or F = MA
Or, the size of and object times the speed it is traveling equals its force
CRATER EXPERIMENT
MATERIALS: pan, flour, ruler, one small marble and one large marble
STEP ONE: Fill pan with flour, level it out
STEP TWO: From waist level drop small marble into the pan
STEP THREE: Measure the diameter
STEP FOUR: Level out the flour
STEP FIVE: From above your head drop the marble into the pan
STEP SIX: Measure the diameter
STEP SEVEN: Level out the flour
STEPS SEVEN: Repeat using large marble
What’s Up? The further away the marble the greater the force,
the larger the crater. The larger the mass, the greater the force.
NEWTON’S 3rd LAW
For every action there is an equal and opposite reaction
MARSHMALLOW SLING SHOT
MATERIALS: small dixie cup, scissors, round balloon, small marshmallows
STEP ONE: cut the bottom off the cup
STEP TWO: Tie a knot at the open end of the balloon
STEP THREE: Cut off the rounded edge of the balloon
STEP FOUR: Stretch the balloon over the cup
STEP FIVE: Place marshmallow into the open end of the balloon
STEP SIX: Pull back on the knot
STEP SEVEN: Let go
WHAT’S UP? First the end of the balloon is pulled back, action.
When it is released it moves forward, reaction
From SCIENCE Rocket Balloon also demonstrates this too