Momentum & Safety (OCR GCSE Physics A (Gateway Science Suite)): Quizzes
📚Quizzes
Practise the questions
11 questions from this quiz
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Practise the questions
11 questions from this quiz
What happens when a car brakes hard?
What happens when a car brakes hard?
There is a large deceleration
What type of injury can result from large forces during hard braking?
What type of injury can result from large forces during hard braking?
Neck whiplash
What causes a large force on a person during hard braking?
What causes a large force on a person during hard braking?
Large momentum change over short time
What happens to passengers without seatbelts during hard braking?
What happens to passengers without seatbelts during hard braking?
They fly through the windshield
How do seatbelts reduce force on passengers?
How do seatbelts reduce force on passengers?
They stretch, extending stopping time
What effect do seatbelts have on the rate of change of momentum?
What effect do seatbelts have on the rate of change of momentum?
They decrease it
Where are crumple zones located on a car?
Where are crumple zones located on a car?
At the front of the car
How do crumple zones work during a crash?
How do crumple zones work during a crash?
They absorb energy to deform
What effect do crumple zones have on stopping time and force?
What effect do crumple zones have on stopping time and force?
Increase time, reduce force
When do airbags inflate?
When do airbags inflate?
Instantaneously upon a crash
How do airbags reduce force on the neck?
How do airbags reduce force on the neck?
Increase time for head to stop moving