Select a force and time combination that would bring a car with momentum of 5000 kg m s⁻¹ to rest

Force = 500 N, time = 10 s, Force = 250 N, time = 20 s, Force = 750 N, time = 6.7 s

Which is the correct description of what happens after ball A collides elastically with larger ball B?

A rebounds at < v & B moves at < v

Choose the correct statement of Newton's First Law

Objects remain at rest or move at a constant v unless acted on by net force

Select the most accurate description of what happens when the spring loaded plunger is released

Truck 2 moves off with one third of the velocity of truck 1

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Momentum, Collisions and Newton's Laws

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Revision quiz for momentum, collisions and Newton's laws of motion for A-Level physics. #ALevelPhysicsHQ

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Questions 10

Answers

1
Identify the general equation for Newton's second law
F = ma
F = ∆p/∆t
F = W/d
F = mv²/r
2
Select the equation that does not apply to inelastic collisions
B
A
3
Select a force and time combination that would bring a car with momentum of 5000 kg m s⁻¹ to rest
Force = 500 N, time = 10 s
Force = 250 N, time = 20 s
Force = 1000 N, time = 1.0 s
Force = 750 N, time = 6.7 s
4
Select a reasonable estimate for the momentum of a person running along a straight and level path
35000 kg m s⁻¹
3500 kg m s⁻¹
350 kg m s⁻¹
35 kg m s⁻¹
5
Which is the correct description of what happens after ball A collides elastically with larger ball B?
A rebounds at v & B moves at < v
B moves at v & A stationary
B moves at < v & A stationary
A rebounds at < v & B moves at < v
6
Choose the correct statement of Newton's First Law
The net force on an object is equal to its rate of change of momentum
Objects remain at rest or accelerate unless acted on by net force
Objects remain at rest or move at a constant v unless acted on by net force
If A exerts a force on B then B exerts an equal force on A
7
Select the most accurate description of what happens when the spring loaded plunger is released
Truck 2 moves off with one third of the velocity of truck 1
Truck 1 moves off faster than truck 2
Truck 2 moves off with three times the velocity of truck 1
Truck 1 moves off with twice the velocity of truck 2
8
Are the N and w forces in this diagram a Newton's third law pair? And why?
Yes, equal and opposite
No, not opposite
No, not equal
No, act on same object
9
What is not conserved during an inelastic collision?
Total momentum
Total energy
Net momentum
Kinetic energy
10
Select the correct definition of momentum
mass × velocity
inertia of an object
mass × acceleration
unstoppability of an object

Momentum, Collisions and Newton's Laws Flashcards | StudBud