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19 Cards in this Set

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What does Newton mean?
Newton stands for meter/second/second or meters/second2
1N=1kg. x 1 m/s/s.
Three Types of Friction
1. Slding
2. Rolling
3. Fluid
Friction depends on Two things.
1. The surface of the objects
2. The material of the objects
What is air resistence
Air resistence makes a falling object slow down.
Force
A force is a push or a pull
How can prevent friction?
Use lubercants such as oil and wax.
Balanced Forces
Balanced forced will relsult in no motion because they are equal and oppisite.
Mass
The amount of matter in an object.
Unbalanced Forces
Unbalanced forces result in motion. The object will get accelerated.
Universal Gravitation
Every object with a mass has a gravitational pull and it depends on two things.
1. The mass of the object
2. The distance between the objects
Terminal Velocity
When the upward force of air equals the downward force of gravity and acceleration stops therefore reaching constant velocity.
Vector
Line with an arrow.
Prijectile Motion
If you shoot something horizontally and vertically out the same time they will land at the same rate.
Second Law of Motion
Acceleration ,mass or inertia, and force are all related.
Force=Mass x acceleration
First Law of Motion
An object will remain at constant speed or at constant rest forever unless outside forces ineract.
Inertia
The property of matter that to resist any change in motion.
Third Law of Motion
For every action there is an equal and oppisite reaction. Forces come in pairs.
Friction
The force that causes objects to slow down and eventually stop.
Weight
The measure of the force of gravity on an object.