# physics final

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1. a body that is falling downward, only in a vacuum; all bodies fall with the same acceleration
law of falling bodies
2. newton's second law (3)
• - the acceleration produced by a non-zero net force on an object is directly proprotional to the madnitude of the net force
• - is in the same direction as the net force
• - inversely proportional to the mass of the object
3. a diagram showing all of the forced acting on  an object
free-body diagram
4. speed at which the acceleration of a falling object is zero because friction balances the weight
terminal speed
5. the terminal speed together with the direction of motion
terminal velocity
6. a mutual action
interaction
7. newton's third law (4)
• - all forces come in pairs
• - forces occur simultaneously
• - each force acts on a different object
• - each force is equal in magnitude but opposite in direction
8. the mass of the object multiplied by its velocity
momentum
9. a vector quantity that is equal to the product of the net external force that acts on the system and the time interval during which the force acts, the impulse is in the same direction as the net external force and it equals the resulting change in momentum
impulse
10. the identified object or collection of objects that will interact
system
11. the ability of an object to produce a change in itself or the world around it
energy
12. the product of the net force an object and the distance through which the object moves as a result of net force
work
13. the rate at which energy is transformed or the rate at which work is done
power
14. the ability to do work
mechanical energy
15. energy related to the forces and position or configuration between an object and its surroundings
potential energy
16. energy stored in a system including an object and the earth due to the gravitational force between the earth and the object and the elevation or height of the object above or below a reference level
gravitational potential energy
17. the form of energy an object has becaue of its motion
kinetic energy
18. energy cannot be created nor destroyed
law of conservation of energy

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 Author: emilyyx14 ID: 222215 Filename: physics final Updated: 2013-06-03 19:16:45 Tags: physics Folders: Description: physics Show Answers:

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