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unit 2 test

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
explain the relationship between potential and kinetic energy   potential- stored energy kinetic- energy of motion  
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which would have more energy a 10kg ball falling from 10m or a 5kg ball falling from 25m   5kg ball falling from 25m  
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what is the potential energy of a 10kg book that is placed on a shelf that is 2.5 meters high   2450J  
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a truck is cruising down the highway at 75mph   KE  
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a snowman is sitting at the top of a hill   PE  
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a snowball is rolling down a hill with a speed of 2m/s   BOTH  
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a snowflake is falling from the sky   KE  
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balanced or unbalanced 16N north and 16N south   unbalanced  
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balanced or unbalanced 16N north and 16N north   balanced  
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what does it mean if the Net Force acting on an object is 0N   equilibrium  
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what type of force always causes change in speed, direction, or both   unbalanced force  
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what is a common unbalanced force acting on objects in motion   friction  
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if a baseball and a cannonball are dropped from the same height at the same time, and there is no air resistance, which ball will hit the ground first   cannonball  
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friction acting on a rolling ball to eventually bring the ball to a stop is an example of which type of force   balanced  
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what is the force weight of a 45 kg desk   441 N  
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what is the mass of a 35 N cat   3.57 kg  
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Created by: smileyk
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