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15
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What would happen without Gravity?
People (and everything else on Earth) could just float away into space.
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monster
Reset all scores!
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magnet
Take 5 points!
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rocket
Go to first place!
Okay!
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lifesaver
Give 25 points!
Oops!
10
×
[True or False] If you go to the Moon, your weight will be less than on Earth
True
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10
×
What is the name of the force holding us to the Earth?
Gravity
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15
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Which two forces cause the gas and dust in nebulas to form solar systems?
Gravity and Pressure
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15
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What is the formula introduced by Sir Isaac Newton to get the weight of an object?
W = m x g
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15
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What causes pressure inside a nebula?
particles bumping into each other
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heart
Other team wins 5 points!
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seesaw
Swap points!
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gift
Win 20 points!
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thief
Give points!
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25
25
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The strength of gravity on a planet is 5 N/kg. Calculate the weight of an 800 kg spacecraft on that planet.
4000 N
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10
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[True or False] The gravitational force on moon is bigger than on Earth
False
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10
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If the planets orbit the Sun, where do the Sun along with the entire solar system orbit?
Galaxy or Milky way Galaxy
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10
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Why doesn't the Feather and the ball fall at the same time on Earth?
Because air resistance hold the feather movement
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baam
Lose 20 points!
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gift
Win 25 points!
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rocket
Go to first place!
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baam
Lose 10 points!
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15
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solar nebula a rotating cloud of gas and dust from which the sun and planets formed. What happened to the solar nebula?
It became the solar system.
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10
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Name the Giant Gasses planets in order.
Jupiter, Saturn, Uranus, Neptune
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10
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[True or False] When the object from Earth move to Moon, the weight of the object will change
True
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