11 Questions
| Attempts: 116

2. 2. 8 Reading Quiz - Newton's second law, momentum impulse

Questions and Answers

- 1.What statement of Newton's 2nd Law is NOT true
- A.
Acceleration is proportional to Force

- B.
Acceleration is proportional to mass

- C.
Acceleration is inversely proportional to mass

- 2.A 2Kg mass pushed to the left with 20N, and to the right with 12N. What is the acceleration
- A.
10 ms-2 to left

- B.
10 ms-2 to right

- C.
4 ms-2 to left

- D.
4 ms-2 to right

- E.
6 ms-2 to left

- F.
6 ms-2 to right

- 3.A 5Kg block slides down a slope. Component of gravity acting down the slope is 10N, Friction acting up the slope is 10N, what is the acceleration?
- A.
2ms-2 up slope

- B.
2ms-2 down slope

- C.
Zero - block must stay still

- D.
Zero - block slides down with constant velocity

- 4.What is momentum?
- A.
The tendency of a body to keep moving

- B.
The product of mass and velocity i.e. mxv

- C.
The resistance something has to being stopped.

- D.
The ability of something to spin around

- 5.What is impulse as (far as physics is concerned)
- A.
Product of time and force

- B.
Product of force and distance

- C.
Product of time and energy

- D.
Product of momentum and time

- E.
When you feel you have the urge to react to something

- 6.change of momentum is also known as
- A.
Acceleration

- B.
Force

- C.
Impulse

- D.
Work done

- E.
Unbalanced force

- 7.What is the momentum of a 1000Kg car travelling 100m in 5 seconds?
- A.
100,000 Kgms-1

- B.
20,000 Kgms-1

- C.
5000 Kgms-1

- D.
50 Kgms-1

- 8.A 0.05Kg egg in a specially designed eggbox designed by 2 students last year in year 10 hits the floor at 2ms-1, it comes to rest in 0.1 second due to it being well padded. What is the average force acing on the egg when it lands on the floor
- A.
10N

- B.
1N

- C.
20N

- D.
2N

- E.
0.1N

- F.
0.2N

- 9.What is the significance of the area of a force/time graph
- A.
Distance moved

- B.
Total force

- C.
Change of momentum

- D.
Change of velocity

- E.
Acceleration

- 10.Why does a car have crumple zones?
- A.
To reduce the speed as soon as possible

- B.
To slow down the passenger as soon as possible

- C.
To increase the time taken for a collision

- D.
To reduce the time taken for a collision

- E.
It looks good in films

- F.
Car manufacturers do this so you have to buy a new car if you wrap it around a lamp post.

- 11.Are there any parts of Newton's 2nd Law, momentum and impulse that you would like to go over. Can you formulate a question?

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