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Transcript
FORCE, FRICTION, AND GRAVITY
Let us review
What is Force?
Force is a push or a pull
FrictionWhen two objects rub against each other
Examples of friction
Treads of a wheel
Soles of shoes
What causes friction?
Where is Friction?
Rough surface means more frictionMore friction means slower things
How hard objects press against each other
The harder objects press against each otherThe greater the friction