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25
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How does an inclined plane reduce the effort needed to lift an object?
By allowing the object to be moved up a gradual slope instead of being lifted vertically, spreading the effort over a longer distance.
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15
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What happens to an object at rest if no force is applied to it?
The object remains at rest.
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15
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What is potential energy?
Potential energy is the energy stored in an object due to its position or state.
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15
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What force pulls objects toward the Earth?
Gravity.
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15
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How does friction affect the movement of a sliding object?
Friction slows down the sliding object.
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15
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What might happen if we apply a force to a moving object?
The object can speed up, slow down, change direction, or stop.
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15
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What do you need to do to start moving a heavy object?
Apply a force to it.
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baam
Lose 25 points!
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fairy
Take points!
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25
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rocket
Go to first place!
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thief
Give points!
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25
15
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What is kinetic energy?
Kinetic energy is the energy of an object due to its motion.
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20
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How does a wheel and axle make it easier to move objects?
By reducing friction and allowing objects to roll rather than slide.
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15
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What is the purpose of a wedge?
A wedge is used to split or cut objects.
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15
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What happens to the potential energy of an object when it falls freely under gravity?
The potential energy decreases as it is converted into kinetic energy.
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15
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What happens to an object when you push it harder?
It moves faster
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banana
Go to last place!
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seesaw
Swap points!
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gift
Win 15 points!
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lifesaver
Give 25 points!
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15
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Why does an object move easily in a smooth surface than rough surface?
An object moves more easily on a smooth surface and more slowly on a rough surface due to increased friction
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thief
Give points!
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25
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seesaw
Swap points!
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rocket
Go to first place!
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lifesaver
Give 15 points!
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