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Grade 4 Science Test 4 Study Sheet

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