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# Week 17 Science

### Forces and Motion

Newton´s First Law that states a body at rest will remain at rest, and a body in motion will remain in motion unless it is acted upon by an external force.
Newton´s Second Law force is the product of mass and acceleration
Newton's Third law states that for every action (force) in nature there is an equal and opposite reaction.
Force a push or pull that acts on an object.
Force measured in Newtons (N)
acceleration. The rate at which the speed or the direction of motion of an object changes over time is its
Inertia the tendency of an object to resist any change in motion.
Contact Force. Type of force that requires two pieces of matter to touch
Friction the force that results when two materials rub against each other.
The amount of friction between two objects depends on their texture, shape, speed, and weight.
Non-Contact force. A force that acts at a distance
magnetic force An example of a non-contact force
divide the distance by the time. To determine the speed that a car is traveling
If a car travels 200 miles and takes 3 hours to get to its destination you would divide 200 miles by 3 hours to determine the speed (miles per hour) 120mi ÷ 2hrs = 60mph
Created by: rowlandm4

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