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Assessment Review

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
What determines how difficult it is to stop an object?   momentum  
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The rate of change in velocity is called   acceleration  
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What is used for a comparison when motion is described?   Frame of Reference  
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The rate at which an object moves is its   speed  
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Change in position in a certain amount of time is   motion  
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Speed in a given direction is   velocity  
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A negative acceleration is called   deceleration  
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The velocity of an object changes if   speed or direction changes  
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When deceleration occurs, velocity   decreases  
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An example of constantly changing velocity is   circular motion  
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Even when slowly moving a train cannot stop suddenly because of its   large momentum  
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Speed that does not change is called   constant speed  
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The Law of Conservation of Momentum states that momentum   cannot be lost or gained  
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A distance-time graph for acceleration is always a   curved line  
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When an object slows,   it's velocity, speed, and momentum change  
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Force is necessary to   stop, start, or change the direction of an object  
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When forces are balanced, the motion of the object   does not change  
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What can be used to reduce friction?   oil, wheels, ball bearings  
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Example of fluid friction?   oil  
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Friction produced by wheels or ball bearings is called   rolling friction  
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What friction has the highest resistance?   sliding  
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An object at rest will remain at rest is explained in Newton’s   First Law  
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Newton’s Second Law of Motion relates to   force, mass, and acceleration  
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Kg x m/s/s =   force  
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When working with force, weight is measured in   Newtons  
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Newton’s Third Law of Motion describes   for every action there is an equal but opposite reaction  
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Forces act in pairs falls under Newton’s   Third Law  
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What is the value of gravitational acceleration?   9.8 m/s/s  
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As an object increases speed, the air resistance   increases  
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Created by: huizenga
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