9 Questions
| Total Attempts: 4313

Questions and Answers

- 1.The moment of a force causes an object to
- A.
Move forward

- B.
Move backward

- C.
Stop moving

- D.
Turn about a fixed point

- 2.
- A.
A point near the hinges and perpendicular to the door

- B.
A point near the hinges and parallel to the door

- C.
A point far away from the hinges and perpendicular to the door

- D.
A point far away from the hinges and parallel to the door

- 3.
- A.
Only if they act on the same point on the object

- B.
If they are separated by a distance

- C.
When they are balanced by a third force

- D.
when their moments about the same point are equal

- 4.
- A.
50

- B.
67

- C.
100

- D.
200

- 5.Jack has a weight of 300 N and sits 2.0 m from the pivot of the see-saw. Jill has a weight of 450 N and sits 1.5 m from the pivot. Who will move down?
- A.
Jack

- B.
Jill

- C.
Both of them

- D.
None of them

- 6.
- A.
A short spanner because a large turning effect can be produced.

- B.
A short spanner because a larger force can be produced.

- C.
A heavy spanner because a larger force can be produced.

- D.
long spanner because a large turning effect can be produced.

- 7.The diagram shows a gauge which measures the amount of liquid in a tank. At which position should the pivot be placed so that the pointer moves the greatest distance as the tank is emptied?
- A.
A

- B.
B

- C.
C

- D.
D

- 8.
- A.
3

- B.
4

- C.
6

- D.
8

- 9.
- A.
Zero

- B.
160 Ncm anticlockwise

- C.
160 Ncm clockwise

- D.
20 N downward