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15
×
A car travels 120 km in 2 hours. What is its speed?
60 km/h.
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thief
Give points!
5
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25
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fairy
Take points!
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25
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gift
Win 25 points!
Okay!
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thief
Give points!
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25
20
×
How does light normally travel?
In straight lines.
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20
×
Why can't we hear sound in space?
There is no medium (air) for sound to travel through.
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20
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Why use a ramp instead of lifting directly?
Less force is needed.
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25
×
Why is wearing a seatbelt important?
It stops your bodies inertia from continuing forward during a crash.
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20
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What is refraction?
The bending of light when it moves between materials.
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trap
No points!
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gold
Win 50 points!
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fairy
Take points!
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25
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banana
Go to last place!
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seesaw
Swap points!
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rocket
Go to first place!
Okay!
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fairy
Take points!
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25
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baam
Lose 5 points!
Oops!
20
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A bowling ball and a tennis ball are dropped from the same height on the Moon. Which hits the ground first?
They hit the ground at the same time because there is almost no air resistance on the Moon.
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25
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Why doesn't the Moon fall onto Earth if gravity is pulling on it all the time?
The Moon is moving sideways fast enough to stay in orbit around Earth.
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25
×
Why does the straw look bent?
Refraction
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20
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Why do high heels create more pressure than sneakers?
Smaller contact area.
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15
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What is friction?
A force that opposes motion.
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25
×
What is the speed of light?
299,792,458 m/s(exact) , 300,000 km/s, or 186,000 miles/s
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25
×
A battery-powered flashlight is turned on. Put these energy types in order: Chemical Energy Light Energy Electrical Energy
Chemical â Electrical â Light
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