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15
×
List 3 examples of things with gear mechanisms
drill, clock, guitar
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20
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List one positive and negative way machines can impact the environment
Positive: using cars to get around helps one get around faster Negative: cars contribute to climate change because it releases greenhouse gases
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20
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The input component of a bicycle is __________?
The pedals
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15
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Rotary motion is movement in a linear path. True or False?
False. It is movement in a circular path.
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15
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Torque is a measure of rotational force? True or False
True
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20
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What is the name of machines that are made up of two or more simple machines?
Complex machines
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15
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Mechanisms are systems in a machine that can modify a motion. True or False?
True
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baam
Lose 20 points!
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rocket
Go to first place!
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rocket
Go to first place!
Okay!
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lifesaver
Give 15 points!
Oops!
20
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List 3 examples of things with pulley mechanisms
crane, well, elevator
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15
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Linear motion is movement in a circular path. True or False?
False. It is movement that occurs in a straight line.
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25
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What is the difference between a simple and a complex machine?
A simple machine is a basic tool that helps apply force and do work. A complex machine is made up of two or more simple machines.
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20
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The output component of a bicycle is ________?
The back wheel
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20
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Gears are used to change what three things? Force, movement and _______.
Direction
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thief
Give points!
5
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25
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fairy
Take points!
5
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25
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shark
Other team loses 15 points!
Okay!
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baam
Lose 20 points!
Oops!
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thief
Give points!
5
10
15
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25
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seesaw
Swap points!
Okay!
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gift
Win 15 points!
Okay!
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lifesaver
Give 25 points!
Oops!
15
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A movable pulley has a wheel that cannot move. True or False?
False. A movable pulley has a wheel that can move.
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