943515
Pregunta 1
Pregunta
A moving object has...
Respuesta
-
Speed
-
Momentum
-
Gravity
Pregunta 2
Pregunta
Momentum =
Respuesta
-
Mass x Velocity
-
Mass ÷ Velocity
-
Velocity ÷ Mass
-
Mass + Velocity
Pregunta 3
Pregunta
To reduce injuries, forces should be as small as possible.
Respuesta
- True
- False
Pregunta 4
Pregunta
Force =
Respuesta
-
Change in Momentum ÷ Time
-
Mass x Acceleration
-
Time ÷ Change in Momentum
-
Speed x Distance
Pregunta 5
Pregunta
Spreading the momentum change over a short period of time reduces the force.
Respuesta
- True
- False
Pregunta 6
Pregunta
What do crumple zones do?
Respuesta
-
Change shape
-
Stretch
-
Inflate
Pregunta 7
Pregunta
How do seatbelts reduce injury?
Respuesta
-
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.
Pregunta 8
Pregunta
What to air bags increase?
Respuesta
-
the time taken for the head's momentum to reach zero
-
the space in the car
-
the force
Pregunta 9
Pregunta
ABS stands for?
Respuesta
-
Anti-lose braking system
-
Anti-lock braking system
-
Anti-lock braking section
-
Anti-lock bump system
Pregunta 10
Pregunta
ABS prevents?
Respuesta
-
skidding
-
cars overturning
-
damage to the car
Pregunta 11
Pregunta
Traction control - prevents skidding while accelerating so the car can quickly escape a dangerous situation.
Respuesta
- True
- False
¿Quieres crear tus propios Tests gratis con GoConqr? Más información.