Past Papers of MDCAT ECAT Physics, Work and Energy Test 6

0%

Question 1: Kilowatt-hour is a unit of: (NUMS 2020)

A) Power

B) Electric energy

C) Momentum

D) Torque

Explanation: Scroll down after completing the quiz to view the detailed explanation for this question.

Question 2: A field in which the work is done in moving a body along a closed path is zero is called (NMDCAT 2021)

A) Electric field

B) Conservative field

C) Electromagnetic field

D) Gravitational field

Explanation: Scroll down after completing the quiz to view the detailed explanation for this question.

Question 3: When a force is parallel to the direction of motion of the body, then work done on the body is (NMDCAT 2021)

A) Zero

B) Minimum

C) Infinity

D) Maximum

Explanation: Scroll down after completing the quiz to view the detailed explanation for this question.

Question 4: If a body of mass 2 kg is raised vertically through 2m, then the work done will be (NMDCAT 2021)

A) 38.2 J

B) 392.1 J

C) 39.2 J

D) 3.92 J

Explanation: Scroll down after completing the quiz to view the detailed explanation for this question.

Question 5: The relation between horsepower and watt is (NMDCAT 2021)

A) 1 hp = 546 watts

B) 1 hp = 746 watts

C) 1 hp = 1000 watts

D) 1 hp = 946 watts

Explanation: Scroll down after completing the quiz to view the detailed explanation for this question.

Question 6: A machine does 2500 J of work in 1 min. What is the power developed by the machine? (NMDCAT 2021)

A) 21 W

B) 42 W

C) 150 W

D) 2500 W

Explanation: Scroll down after completing the quiz to view the detailed explanation for this question.

Report Card

Total Questions Attempted: 0

Correct Answers: 0

Wrong Answers: 0

--