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15
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Is gravity a contact or non contact force?
Non contact
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15
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What is Newton's 2nd Law?
F = m x a
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15
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Define acceleration
Acceleration is the rate of change of velocity
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15
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An ice hockey player pushes another ice hockey player. What will happen to the motion of both players?
Both players will move backwards due to Newton's third law.
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trap
No points!
Oops!
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magnet
Take 10 points!
Okay!
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fairy
Take points!
5
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20
25
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baam
Lose 25 points!
Oops!
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seesaw
Swap points!
Oops!
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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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lifesaver
Give 20 points!
Oops!
15
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If I ran 400m around an athletics track, what would be my displacement?
0m (I have finished where I started).
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15
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Is friction a contact or non contact force?
Contact
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baam
Lose 25 points!
Oops!
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gift
Win 10 points!
Okay!
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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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15
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Define a scalar
A quantity with size only.
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15
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How can the drifting astronaut get back to the shuttle (has no thrusters in their suit)
Throw the hammer away from the shuttle, the equal and opposite force will send them back to the shuttle.
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15
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If the forces on an object are balanced, what will be happening to the object's motion?
The object will be moving at a constant velocity or stationary.
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15
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How much does Karen weigh? (g = 10N/kg)
650N
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15
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What is Newton's 3rd law?
Every force has and equal and opposite reaction force.
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15
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What is the resultant force on this trolley and in which direction?
20N right
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15
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How does a runner create forward thrust?
The runner pushes back on the blocks/ground. The backward force has an equal and opposite reaction, pushing the runner forwards.
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