Momentum, Energy, and Simple Systems (HSC SSCE Physics): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
What is the formula for impulse?
What is the formula for impulse?
What are the units of impulse?
What are the units of impulse?
kg m s⁻¹ or N s
What type of quantity is impulse?
What type of quantity is impulse?
Vector quantity
How is impulse found from a force-time graph?
How is impulse found from a force-time graph?
Area under the curve
For a fixed momentum change, what reduces the force experienced?
For a fixed momentum change, what reduces the force experienced?
Increasing collision time
How do seatbelts reduce force on occupants?
How do seatbelts reduce force on occupants?
They stretch to extend deceleration time
What is the purpose of crumple zones?
What is the purpose of crumple zones?
Increase collision time by deforming
What two purposes do airbags serve?
What two purposes do airbags serve?
Increase deceleration time, spread force
A 60 kg person stops from 25 m s⁻¹ in 0.08 s. What force magnitude is experienced?
A 60 kg person stops from 25 m s⁻¹ in 0.08 s. What force magnitude is experienced?
19 kN
Who invented the three-point seatbelt in 1959?
Who invented the three-point seatbelt in 1959?
Volvo engineers