Science EOG, 5th Grade, Force and Motion

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Momentum
Is the measure of how hard it is to slow or stop a moving object.
Laws of motion
Three laws formulated by Sir Issac Newton that describe how objects move in relation to the forces acting on them.
Potential Energy
Stored Energy.
Kinectic Energy
Moving Energy
Inertia
When an object remains at rest or in motion unless acted by a force.
Friction
Forces that slowdown or stop movement.
Simple Machines
Is a tool or machine that makes work easier.
Balanced forces
Are forces that have a net force of zero or equal weight and making objects stay in place.
Unbalanced forces
have a force that is stronger on one side than the other, causing movement of an object.
Motion
How a position changes over time.
Force
A push or a pull.
Energy
The ability to do work.
Gravity
A force of attraction between any two masses pulls objects down to the center of the earth.
Weight
A measurement of how heavy something is.
Work
When an object moves, this is being done.
Lever
A tool that helps lift weights with less effort.
Pulley
Is a form of wheel and axel and changes the directon of the force.
Wheel and Axel
Can lift heavy weights for us with only a little effort on our parts.
Acceleration
A change in motion caused by unbalanced forces or a change in speed.
Velocity
An objects speed in a particular direction.
Mass
The amount of matter / weight in an object.
Incline Plane
Makes it easier to slide a load upward then to lift it directly.
Screw
An incline planed wrapped around a cylinder. Its main purpose is to raise a load over the thread.
Weight
A measure of a pull of gravity of an object.
Wedge
It can lift a heavy load over a short distance or can split a log.
Position
The location of an object.
Speed
A measurement of distance over time.
Thrust
The force that moves an object forward.
Drag
The opposite force on a object (tries to slow it down).
Design
To imagine and create the best way to solve a problem.
Model
Representation that shows the workings of an object or system.