Elementary Ideas of Work NDA Questions

NDA Physics

Elementary Ideas of Work MCQ Questions


1.
If a force does work in moving an object and also causes an increase in its kinetic energy, the work done is
A.
Positive
B.
Negative
C.
Zero
D.
Impossible to determine
😑 View Answer Rough Work Error
ANSWER :
A. Positive
2.
If no work is done by a force, what can be inferred about the displacement relative to the force's direction?
A.
The displacement is zero
B.
The displacement is opposite to the force
C.
The displacement is in the same direction as the force
D.
The displacement is perpendicular to the force
😑 View Answer Rough Work Error
ANSWER :
D. The displacement is perpendicular to the force
3.
When a person lifts a box from the ground and carries it horizontally across a room, where is work being done?
A.
No work is done
B.
Constant
C.
While lifting the box
D.
While carrying the box horizontally
😑 View Answer Rough Work Error
ANSWER :
C. While lifting the box
4.
What is the unit of work in the International System of Units (SI)?
A.
Pascal
B.
Joule
C.
Newton
D.
Watt
😑 View Answer Rough Work Error
ANSWER :
B. Joule
5.
When a force is applied to an object, work is done if
A.
The object moves in the direction of the force
B.
The object remains stationary
C.
The object moves perpendicular to the force
D.
The object moves opposite to the force
😑 View Answer Rough Work Error
ANSWER :
A. The object moves in the direction of the force
6.
If no displacement occurs, what is the work done?
A.
Positive work
B.
Negative work
C.
Zero work
D.
Insufficient information to determine
😑 View Answer Rough Work Error
ANSWER :
C. Zero work