What happens to an object when you push it harder?
It moves faster
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15
What is kinetic energy?
Kinetic energy is the energy of an object due to its motion.
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20
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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seesaw
Swap points!
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seesaw
Swap points!
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fairy
Take points!
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thief
Give points!
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10
What simple machine would you use to lift a bucket from a well?
A pulley system
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15
What is the purpose of a wedge?
A wedge is used to split or cut objects.
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25
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
What force pulls objects toward the Earth?
Gravity.
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15
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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seesaw
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rocket
Go to first place!
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gift
Win 20 points!
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banana
Go to last place!
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15
What happens to an object at rest if no force is applied to it?
The object remains at rest.
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15
How does friction affect the movement of a sliding object?
Friction slows down the sliding object.
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trap
No points!
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star
Double points!
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fairy
Take points!
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baam
Lose 25 points!
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20
Describe a real-life example where potential energy is converted into kinetic energy.
A roller coaster at the top of a hill has maximum potential energy. As it descends, the potential energy is converted into kinetic energy, increasing its speed.
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banana
Go to last place!
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star
Double points!
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rocket
Go to first place!
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baam
Lose 20 points!
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15
What is potential energy?
Potential energy is the energy stored in an object due to its position or state.
