Elementary Ideas of Work NDA Questions

NDA Physics

Elementary Ideas of Work MCQ Questions


7.
A person applies a force of 50 N to push a box across the floor for a distance of 10 meters How much work does the person do?
A.
500 J
B.
5 J
C.
50 J
D.
5000 J
😑 View Answer Rough Work Error
ANSWER :
A. 500 J
8.
If the angle between the force and displacement vectors is 90 degrees, what is the work done?
A.
Zero work
B.
Positive work
C.
Negative work
D.
Insufficient information to determine
😑 View Answer Rough Work Error
ANSWER :
A. Zero work
9.
A force of 10 N is applied to an object that moves a distance of 5 meters How much work is done?
A.
15 J
B.
5 J
C.
50J
D.
05 J
😑 View Answer Rough Work Error
ANSWER :
C. 50J
10.
In which situation is work done by a force considered positive?
A.
Force is zero
B.
Force and displacement are in opposite directions
C.
Displacement is zero
D.
Force and displacement are in the same direction
😑 View Answer Rough Work Error
ANSWER :
D. Force and displacement are in the same direction
11.
If a force is applied to an object, but the object does not move, how much work is done?
A.
Zero work
B.
Positive work
C.
Negative work
D.
Insufficient information to determine
😑 View Answer Rough Work Error
ANSWER :
A. Zero work
12.
Which of the following quantities is NOT necessary for work to be done?
A.
Force
B.
Time
C.
Distance
D.
Direction
😑 View Answer Rough Work Error
ANSWER :
B. Time