The concept of work done is fundamental in physics. Whether you are studying physics as a pastime or preparing for tests such as the MCAT, AP Physics, GCSE, or IB, you must track your progress.
You can test your concepts in this Work done quiz by taking this online practice quiz. Concepts you must be comfortable with before taking this quiz are
- Motion (Kinematics 1D and 2D)
- Work Done and
- work energy theorem
This quiz only includes algebra-based questions on the concept of work.
Work Done Quiz Questions and Answers
Question 1 Product of force and displacement is called
(a) work done
Question 2 What is the metric unit of work?
Question 3 Calculate the work done in moving a block of 15 Kg by a distance of 4 m when 50 N of force is being applied to it.
(a) 200 Joules
(b) 2000 Joules
(c) 300 Joules
(d) 3000 Joules
Question 4 Consider the diagram below, which depicts a force of $10N$ being applied to a box of mass $20 Kg$ at an angle of $60^0$. This force moves the box $20m$ across the smooth table horizontally. The work done by the force is
(a) 100 J
(b) 150 J
(c) 10 J
(d) 200 J
Question 5 A porter lifts a 15 Kg box from the ground to a height of 2.0 m. The work done by the porter on the box would be equal. ($g=9.8 m/s^2$)
(a) 300 N
(b) 290 N
(c) 294 N
(d) 297 N
Question 6 Work is done on a body when
a. force acts on the body, but the body is not displaced.
b. force does not act on the body, but it is displaced.
c. force acts on the body in the direction perpendicular to the direction of the displacement of the body.
d. force acts on the body and the body is either displaced in the direction of force or opposite to the direction of the force.
Question 7 In case of negative work, the angle between force and displacement is
Question 8. In a tug of war, work done by a winning team is
d. none of these
Question 9. What is the work done by gravity if a 90 kg block is pushed along a 100 m track?
a. 10 J
b. 0 J
c. 90 J
d. 100 J
Question 10. A child builds a tower from three blocks. The blocks are uniform cubes of side 2 cm. The blocks are initially all lying on the same horizontal surface, and each block has a mass of 0.1 kg. The work done by the child is
(b) 0.04 J
(d) 0.06 J
Question 11. A certain force acting on a body of mass 2 kg increases its velocity from 6 m/s to 15 m/s in 2 s. The work done by the force during this interval is
a. 27 J
b. 3 J
c. 94.5 J
d. 189 J
Question 12 In which of the following cases work done would be maximum
Question 13 A man raises a box of mass 50 Kg to a height of 3 m in 2 minutes, while another man raises the same box to the same height in 4 minutes. What is the ratio of work done by them?
Question 14 A bullet of mass 10 g leaves a rifle at an initial velocity
of 1000 m/s and strikes the earth at the same level with a velocity of 500 m/s. The work done in joule for overcoming the resistance of the air will be
Question 15 A body moves a distance of 10 m along a straight line under the action of a 5 N force. If the work done is 25 J, then the angle between the force and direction of motion of the body is
Question 16 When a body moves with a constant speed along a circle
(a) no work is done on it
(b) no acceleration is produced in it
(c) its velocity remains constant
(d) no force acts on it.