943515
Question 1
Question
A moving object has...
Answer
-
Speed
-
Momentum
-
Gravity
Question 2
Question
Momentum =
Answer
-
Mass x Velocity
-
Mass ÷ Velocity
-
Velocity ÷ Mass
-
Mass + Velocity
Question 3
Question
To reduce injuries, forces should be as small as possible.
Answer
- True
- False
Question 4
Question
Force =
Answer
-
Change in Momentum ÷ Time
-
Mass x Acceleration
-
Time ÷ Change in Momentum
-
Speed x Distance
Question 5
Question
Spreading the momentum change over a short period of time reduces the force.
Answer
- True
- False
Question 6
Question
What do crumple zones do?
Answer
-
Change shape
-
Stretch
-
Inflate
Question 7
Question
How do seatbelts reduce injury?
Answer
-
They stretch and convert the persons kinetic energy into elastic energy.
-
They stretch and stop the person hitting their head on anything.
-
They stop you're organs hitting your ribcage.
Question 8
Question
What to air bags increase?
Answer
-
the time taken for the head's momentum to reach zero
-
the space in the car
-
the force
Question 9
Question
ABS stands for?
Answer
-
Anti-lose braking system
-
Anti-lock braking system
-
Anti-lock braking section
-
Anti-lock bump system
Question 10
Question
ABS prevents?
Answer
-
skidding
-
cars overturning
-
damage to the car
Question 11
Question
Traction control - prevents skidding while accelerating so the car can quickly escape a dangerous situation.
Answer
- True
- False
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