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Force & Motion
Force & Motion
21
Science
5th Grade
03/02/2012

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Cards

Term
Friction
Definition
The force that acts against moving objects
Term
Position
Definition
Location of an object
Term
Inclined Plane
Definition
Ramps, helps us move from a low place to a high place
Term
Wheel and Axle
Definition
A rod or axle between two wheels
Term
Screw
Definition
Used to hold things together. An incline plane wrapped around a center shaft.
Term
Lever
Definition
A rigid bar that rests on a fulcrum (pivot point). Effort arm is force, resistance arm is load. 3 types
Term
Pulley
Definition
Wheel with a groove around its middle. A rope fits in the groove and wraps around the wheel.
Term
Wedge
Definition
Two inclined planes stuck together. It is used to push things apart.
Term
Force
Definition
Push or Pull on an object.
Term
Acceleration
Definition
Change in velocity
Term
Speed
Definition
How fast its position is changing with time at any given moment
Term
Inertia
Definition
The tendency of an object to resist change in its state of motion
Term
Deceleration
Definition
Slowing down
Term
Velocity
Definition
The SPEED of a moving object taken together with its DIRECTION of travel
Term
Gravity
Definition
The attractive force between the mass of Earth and the mass of objects on earth
Term
Motion
Definition
The process of an object moving
Term
Weight
Definition
The pull of gravity on an object
Term
Air Resistance
Definition
The force that prevents different objects from falling at the same rate
Term
Momentum
Definition
The strength or force that something has when it is moving
Term
Balanced Forces
Definition
When all of the forces on an object cancel one another out
Term
Unbalanced Forces
Definition
Forces that do not cancel each other out when acting together on a single object.
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