Physics Formal Assessment Lab5 Under Mr Tan

10 Questions | By Thechadwictan | Updated: Mar 21, 2022 | Attempts: 48

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This exam is about torques and law of moments. There are ten items in this quiz

Questions and Answers

1.

In a seesaw, torque is NOT affected by
- A.
  
  Force applied
- B.
  
  Distance from the fulcrum
- C.
  
  Time spent on the seesaw
- D.
  
  Weight
- E.
  
  Acceleration due to gravity
Correct Answer
C. Time spent on the seesaw
2.

The ability of a force to cause rotation
- A.
  
  Acceleration
- B.
  
  Law of moments
- C.
  
  Torque
- D.
  
  Both b and c
- E.
  
  None of the above
Correct Answer
D. Both b and c
3.

Roger, who has a mass of 55.0 kg, is sitting on the edge on the left side of a 4.00 m seesaw with the fulcrum found in the middle. Where should John sit on the right side if he has a mass of 75.0 kg?
- A.
  
  2.9 m from the fulcrum
- B.
  
  3.5 m from the fulcrum
- C.
  
  1.5 m from the fulcrum
- D.
  
  1.6 m from the fulcrum
- E.
  
  0.4 m from the fulcrum
Correct Answer
A. 2.9 m from the fulcrum
4.

The sum of clockwise torque should be equal to the sum of the counterclockwise torque. This is known as the
- A.
  
  1st condition of equilibrium
- B.
  
  2nd condition of equilibrium
- C.
  
  3rd condition of equilibrium
- D.
  
  4th condition of equilibrium
- E.
  
  5th condition of equilibrium
Correct Answer
B. 2nd condition of equilibrium
5.

A 2.0 kg board serves as a seesaw for two children. One child has a mass of 30 kg and sits 2.5 m from the pivot point. At what distance from the pivot must a 25 kg child place herself to balance the seesaw?
- A.
  
  1m
- B.
  
  2m
- C.
  
  3m
- D.
  
  4m
- E.
  
  5m
Correct Answer
C. 3m
6.

What is the torque (in Nm) applied by a 686 N person about the front support of a diving board, 3.0 m from the support.
- A.
  
  1477
- B.
  
  4500
- C.
  
  2100
- D.
  
  2500
- E.
  
  2058
Correct Answer
E. 2058
7.

A 15 N box and a 25 N child sit at opposite ends of a 4.0 m seesaw pivoted at its center. Where should a third box whose weight is 20 N sit in order to balance the seesaw?
- A.
  
  2m from the 15 N box
- B.
  
  1 m from the 25 N box
- C.
  
  1.5 m from the 25 N box
- D.
  
  0.55 from the 15 N box
- E.
  
  None of the above
Correct Answer
A. 2m from the 15 N box
8.

Noynoy and Manny are on a see-saw. Noynoy is 73kg and is 2.3m away from the center of the see-saw. Lily is 3.1m away. The see-saw is balanced. What is Manny's mass?
- A.
  
  4.52 kg
- B.
  
  4.52 N
- C.
  
  73.4 kg
- D.
  
  84.11 kg
- E.
  
  53.4 kg
Correct Answer
E. 53.4 kg
9.

What is the torque (in Nm) applied by 60.0 kg person 5 meters from the fulcrum?
- A.
  
  1780
- B.
  
  2940
- C.
  
  3522
- D.
  
  6197
- E.
  
  4558
Correct Answer
B. 2940
10.

What is the torque (in Nm) applied by 100 N person 10.0 meters from the fulcrum?
- A.
  
  500
- B.
  
  1000
- C.
  
  1500
- D.
  
  2000
- E.
  
  10000
Correct Answer
B. 1000

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Current Version
Mar 21, 2022

Quiz Edited by
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May 10, 2010

Quiz Created by
Thechadwictan

Physics Formal Assessment Lab5 Under Mr Tan

In a seesaw, torque is NOT affected by

The ability of a force to cause rotation

Roger, who has a mass of 55.0 kg, is sitting on the edge on the left side of a 4.00 m seesaw with the fulcrum found in the middle. Where should John sit on the right side if he has a mass of 75.0 kg?

The sum of clockwise torque should be equal to the sum of the counterclockwise torque. This is known as the

A 2.0 kg board serves as a seesaw for two children. One child has a mass of 30 kg and sits 2.5 m from the pivot point. At what distance from the pivot must a 25 kg child place herself to balance the seesaw?

What is the torque (in Nm) applied by a 686 N person about the front support of a diving board, 3.0 m from the support.

A 15 N box and a 25 N child sit at opposite ends of a 4.0 m seesaw pivoted at its center. Where should a third box whose weight is 20 N sit in order to balance the seesaw?

Noynoy and Manny are on a see-saw. Noynoy is 73kg and is 2.3m away from the center of the see-saw. Lily is 3.1m away. The see-saw is balanced. What is Manny's mass?

What is the torque (in Nm) applied by 60.0 kg person 5 meters from the fulcrum?

What is the torque (in Nm) applied by 100 N person 10.0 meters from the fulcrum?