Calculus Based Physics 1 Midterm Quiz 2 PDF

Preview

Summary

Home / My courses / UGRD-NSCI6100-2013T / Week 9 : TORQUE / Midterm Quiz 2Question 1Correct Mark 1 out of 1.Question 2Correct Mark 1 out of 1.Question 3Correct Mark 1 out of 1.Question 4Correct Mark 1 out of 1.Started on Sunday, 6 September 2020, 1:11 PM State Finished Completed on Sunday, 6 Septemb...

Description

9/6/2020

Midterm Quiz 2: Attempt review

Home / My courses / UGRD-NSCI6100-2013T / Week 9 : TORQUE / Midterm Quiz 2

Started on Sunday, 6 September 2020, 1:11 PM State Finished Completed on Sunday, 6 September 2020, 1:18 PM Time taken 6 mins 55 secs Grade 23.00 out of 25.00 (92%) Question 1 Correct Mark 1.00 out of 1.00

Two students are balancing on a 10m seesaw. The seesaw is designed so that e the seesaw is 5m long. The students on the left weight 60kg and standing 3m a The student on the right weighs 45kg. The seesaw is parallel to the ground. Ass makes the seesaw is massless.  What distance from the center should the student on the right be if they want t parallel to the ground?

Select one: a. 4 m  b. 6 m c. 5 m d. none of the choices

Your answer is correct.

Question 2 Correct

The moment caused by the resultant force about some arbitrary point is equal moment due to all of the component forces of the system.

Mark 1.00 out of 1.00

Select one: True  False

9/6/2020

Midterm Quiz 2: Attempt review

False Question 5 Correct

If the body is in equilibrium under the action of a number of the forces, then th moments of the forces about any point is equal to one.

Mark 1.00 out of 1.00

Select one: True False 

Question 6

What is the magnitude of the sum of the two forces shown in the diagram belo

Correct Mark 1.00 out of 1.00

 Select one: a. 46 N  b. 102 N c. 137 N d. 142 N

Your answer is correct.

Question 7

Equilibrium is the tendency of a force to cause an object to rotate about an axis

Correct Mark 1.00 out of 1.00

Select one: True False 

Question 8 Correct Mark 1.00 out of 1.00

A bolt connecting the main and rear frame of a mountain bike requires of 15 N capable of applying 40N of force to a wrench in any given direction, what is the wrench that will result in the required torque?

9/6/2020

Midterm Quiz 2: Attempt review

Question 9 Correct

A 5.0 m-long uniform beam is held in position by a cord as shown in the diagra cord is 8.0 N, what is the weight of the beam?

Mark 1.00 out of 1.00

                           Select one: a. 8.0 N b. 9.6 N c. 4.8 N d. 18 N 

Your answer is correct.

Question 10

To satisfy first condition of equilibrium, if rightward forces are positive, leftward

Correct Mark 1.00 out of 1.00

Select one: a. doubled b. halved c. negative  d. positive

Your answer is correct.

Question 11 Correct

Suzie applies a force of 40.0 N at an angle of 60 degrees up from the horizonta a spring scale. If she generates a torque of 73.0 N*m, how long was the rod?

Mark 1.00 out of 1.00

S l

t

9/6/2020

Midterm Quiz 2: Attempt review

Question 13 Correct

The moment of the resultant of a system of forces with respect to any axis or p vector sum of the moments of the individual forces of the system with respect

Mark 1.00 out of 1.00

point.

Select one: True  False

Question 14

You are helping your aunt move a piano on wheels from one room to another.

Correct

piano horizontally, it moves at constant speed. What can you say about the pia

Mark 1.00 out of 1.00

Select one: a. It is in equilibrium because it doesn’t experience a friction force. b. It is in dynamic equilibrium. c. It is in static equilibrium. d. It is in equilibrium because it experiences net force opposite to the friction

Your answer is correct.

Question 15

The symbol of torque is the Greek word for TAO.

Correct Mark 1.00 out of 1.00

Select one: True False 

Question 16

If net force acting on body is zero then body is said to be.

Incorrect Mark 0.00 out of 1.00

Select one: a none of the choices

9/6/2020

Midterm Quiz 2: Attempt review

Question 18 Correct

The length of the lever arm connecting the axis to the point of the force applica quantities of torque magnitude.

Mark 1.00 out of 1.00

Select one: True  False

Question 19

If a body is in rest or in uniform velocity, it is said to be in

Correct Mark 1.00 out of 1.00

Select one: a. Uniform motion b. Equilibrium  c. Constant force d. Rest

Your answer is correct.

Question 20

Does a bridge anchored resting on two pillars have any torque?

Correct Mark 1.00 out of 1.00

Select one: a. Yes, but it will soon break because of the torque b. Yes, but it is at equilibrium  c. No, Bridge can't have torque d. No, it isn't moving

Your answer is correct.

Question 21 Correct Mark 1.00 out of 1.00

"Sum of all forces acting on a body is zero". This condition represents equilibriu

9/6/2020

Midterm Quiz 2: Attempt review

Question 22 Correct Mark 1.00 out of 1.00

A uniform rod of length 50cm and mass 0.2kg is placed on a fulcrum at a distan left end of the rod. At what distance from the left end of the rod should a 0.6kg balance the rod?

Select one: a. 54 cm b. 45 cm  c. none of the choices d. 4.5 cm

Your answer is correct.

Question 23 Correct

A body at rest or moving with uniform velocity will have acceleration

Mark 1.00 out of 1.00

Select one: a. 0  b. 1 c. max d. min

Your answer is correct.

Question 24 Incorrect

What force is necessary to generate a 20.0 N*m torque at an angle of 50 degre rod?

Mark 0.00 out of 1.00

Select one: a. none of the choices b. 3 N 

d. 2 N

Your answer is incorrect.

9/6/2020

Midterm Quiz 2: Attempt review

◄ TORQUE

Jump to......