943515
Questão 1
Questão
A moving object has...
Responda
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Speed
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Momentum
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Gravity
Questão 2
Questão
Momentum =
Responda
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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
Questão 3
Questão
To reduce injuries, forces should be as small as possible.
Responda
- True
- False
Questão 4
Questão
Force =
Responda
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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
Questão 5
Questão
Spreading the momentum change over a short period of time reduces the force.
Responda
- True
- False
Questão 6
Questão
What do crumple zones do?
Responda
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Change shape
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Stretch
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Inflate
Questão 7
Questão
How do seatbelts reduce injury?
Responda
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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.
Questão 8
Questão
What to air bags increase?
Responda
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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
Questão 9
Questão
ABS stands for?
Responda
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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
Questão 10
Questão
ABS prevents?
Responda
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skidding
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cars overturning
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damage to the car
Questão 11
Questão
Traction control - prevents skidding while accelerating so the car can quickly escape a dangerous situation.
Responda
- True
- False
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