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Gr 4 Science Test 4

Grade 4 Science Test 4 Study Sheet

QuestionAnswer
__________ is the force that causes an object to move Effort
The amount of effort needed on a lever is determined by the distance between the effort and the ____________. fulcrum
It takes ________ force to move a heavier object than to move a lighter object. more
When you use ________ force on an object, it will have a greater change in position. more
__________ is the force that resists the movement of objects against each other. Friction
_________ is the force that pulls objects toward the earth. Gravity
A _________ is the weight of the object being moved. load
A ___________ is an object that makes work easier. machine
__________ is a change in an object's position Motion
An _____________ is a flat, sloped object. inclined plane
A longer inclined plane allows you to use _______ force to move an object. less
A _________ is a bar that turns on a point. lever
A ___________ is a wheel with a groove that can hold a rope. pulley
A __________ is an inclined plane wound around an axle. screw
A ___________ is one or more inclined planes used to force things apart. wedge
A ________________ is a wheel with a rod running through it. wheel and axle
A __________ is a push or a pull. force
Something moves when the forces acting on it becomes ______________. unbalanced
A _________ is the point on which a lever turns. fulcrum
Wheel and axles with "teeth" that work together are called _________. gears
Both fixed and movable pulleys are used in a ______________. block and tackle
A block and tackle allows you to use _________ force when lifting an object by moving the rope a greater distance. less
Six types of Simple Machines... 1. lever 2. wheel and axle 3. Pulley 4. Inclined Plane 5. Screw 6. Wedge
Created by: bgpalmers
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