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Chapter 8 Review
Chapter 8 Review
23
Physics
8th Grade
10/03/2006

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Cards

Term
What is the definition for force?
Definition
a force is anything that makes apush or a pull to make an object accelerate or decelerate.
Term
What is a constatn speed?
Definition
When an object travels in an equal amount of time and distance.
Term
The more __________ and object has the harder it is to stop.
Definition
Momentum.
Term
What is the equation for momentum?
Definition
p=mv
Term
What is speed measured in?
Definition
distance and time.
Term
What are the two types of forces?
Definition
Balance and unbalanced.
Term
When forces are unbalanced, what occurs?
Definition
Acceleration.
Term
When forces are balanced, what can happen?
Definition
Either there is no movement, or the movement is at a constant speed.
Term
How many types of friction are there?
Definition
Four (4)
Term
What is the strongest form of friction?
Definition
Static Friction
Term
What is static friction?
Definition
A type of friction that holds an object in place.
Term
What is sliding friction?
Definition
When one surface slides against another.
Term
What is rolling friction?
Definition
A type of friction where one surface rolls against another.
Term
What is fluid?
Definition
Fluid is a liquid or a gas.
Term
What is fluid friction?
Definition
Fluid friction is friction with liquid and gas.
Term
Gravity depends on __________ and _________.
Definition
mass, distance
Term
What is Newtons first law of motion?
Definition
An object in motion tends to stay in motion. An object at rest tends to stay at rest.
Term
What can stop motion?
Definition
Friction
Term
What is Newtons first law also called?
Definition
Inertia
Term
What is Newtons second law of motion?
Definition
Force, mass, and acceleration. a=f/m
Term
What is Newtons second law of motion?
Definition
Force, mass, and acceleration. a=f/m
Term
What is Newtons second law of motion?
Definition
Force, mass, and acceleration. a=f/m
Term
What is Newtons third law of motion?
Definition
For every action, there is an equal and oppisite reaction.
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