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I push Brilliant Bob on a skateboard and he has a mass of 60 kg and is accelerating at 2 m/s^2. What is the force I used to push him?
120 N
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15
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If I push a 10 kg block with a force of 10 N, what is the acceleration of the block?
1 m/s^2 or m/s/s
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15
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If a skateboarder has a mass of 20 kg and a momentum of 40 kg m/s, what is the velocity of the skateboarder?
20 m/s
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15
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If a skateboarder has a mass of 20 kg and has a velocity of 10 m/s, what is their momentum?
200 kg m/s
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15
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Which of Newton's laws is this showing?
Newton's third law
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If you let go of the magnets in this picture what would they do?
Repel
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baam
Lose 10 points!
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gift
Win 15 points!
Okay!
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shark
Other team loses 25 points!
Okay!
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baam
Lose 15 points!
Oops!
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If you let go of the magnets in this picture what would they do?
Attract towards each other
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15
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What is Newton's 1st law of motion?
Intertia-An object in motion stays in motion and an object at rest stays at rest unless acted on by an unbalanced force.
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What is the orange arrow showing?
Friction force
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What is Newton's 3rd law of motion?
For every action, there is an equal but opposite reaction.
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Where around a magnet is the magnetic field the strongest?
The poles (ends)
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What force causes an object in motion to remain in motion?
Inertia
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15
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A swimmer pushing off from the wall of pool exerts a force of 1 N on the wall. what is the reaction force of the wall on the swimmer?
1 N
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trap
No points!
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magnet
Take 25 points!
Okay!
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fairy
Take points!
5
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25
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thief
Give points!
5
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25
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banana
Go to last place!
Oops!
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shark
Other team loses 25 points!
Okay!
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fairy
Take points!
5
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25
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thief
Give points!
5
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25
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