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Science

Termdefinition
Net Force the combining of forces when two or more forces act on an object.
Instantaneous speed the speed at any given point - what shows up on your speedometer
Velocity the speed of an object and the direction of its motion.
Acceleration rate of change of velocity over time
Work the transfer of energy that occurs when a force makes an object move
Power the amount of work done in a certain time; the rate at which work is done
Gravity the attraction two objects have on one another
Weight The pull of gravity on an object, changes with the location of the object. Measured in Newtons
Newton's 2nd Law A net force acting on an object causes the object to accelerate in the direction of the net force.
Newton's 3rd Law every action has an equal and opposite reaction
Distance how far an object has moved.
Speed the distance an object travels per unit of time
Average speed total distance traveled divided by total time traveled
Positive acceleration when an object speeds up
Negative acceleration when an object slows down
Force A push or pull on an object
Balanced Forces forces that are equal in size and opposite in direction
Unbalanced Forces forces that are not equal in size and opposite in direction.
Newton's 1st Law an object will move at a constant velocity until a net force acts on it.
Friction resistance to motion when two objects are in contact with one another
Air resistance resistance an object feels when travelling through the air
Mass The amount of matter in an object, stays constant no matter where the object is. Measured in g, Kg, etc
Created by: 4005078
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