Newtons 3 Laws
Published on Nov 22, 2015
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PRESENTATION OUTLINE
LAW 1
- An object in motion stays in motion until acted upon by another force.
- It's also called the law of inertia
- Inertia is the tendency of an object to stay at rest
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EXAMPLES
- A bowling ball rolling down a lane.
- Seat belts in a car.
- A marble rolling
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LAW 2
- An unbalanced force acting on an object equals the objects mass times acceleration
- Net force = mass x acceleration
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EXAMPLES
- A football player pushing a weight sled
- Pushing a car that's at rest
- Pushing a box
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LAW 3
- For every action there is an equal and opposite reaction
- Momentum = mass x velocity
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BONUS
- Gravity- the downward force on an object
- Weight- a measure of the gravitational force exerted on an object
- Free fall- the motion of a body when only Gravity is acting on it
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BONUS CONTINUED
- Terminal velocity- when air resistance and weight are equal
- Projectile motion- is a curved path projected by an object
- Air resistance- the force that opposes gravity on the opposite direction
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