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Frage 1
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A moving object has...
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Speed
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Momentum
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Gravity
Frage 2
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Momentum =
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Mass x Velocity
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Mass ÷ Velocity
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Velocity ÷ Mass
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Mass + Velocity
Frage 3
Frage
To reduce injuries, forces should be as small as possible.
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- True
- False
Frage 4
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Force =
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Change in Momentum ÷ Time
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Mass x Acceleration
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Time ÷ Change in Momentum
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Speed x Distance
Frage 5
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Spreading the momentum change over a short period of time reduces the force.
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- True
- False
Frage 6
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What do crumple zones do?
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Change shape
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Stretch
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Inflate
Frage 7
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How do seatbelts reduce injury?
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They stretch and convert the persons kinetic energy into elastic energy.
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They stretch and stop the person hitting their head on anything.
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They stop you're organs hitting your ribcage.
Frage 8
Frage
What to air bags increase?
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the time taken for the head's momentum to reach zero
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the space in the car
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the force
Frage 9
Frage
ABS stands for?
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Anti-lose braking system
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Anti-lock braking system
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Anti-lock braking section
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Anti-lock bump system
Frage 10
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ABS prevents?
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skidding
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cars overturning
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damage to the car
Frage 11
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Traction control - prevents skidding while accelerating so the car can quickly escape a dangerous situation.
Antworten
- True
- False
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