About this Quiz

This Work Power and Energy Class 8 MCQ test contains random 30 Objective Questions. You have select one correct answer among given options.

Work Power and Energy Class 8 MCQ With Answers

1. What will be the formula if we are finding the TIME using the formula of power?

  • Time = work donepowerTime\ =\ \frac{work\ done}{power}Time = powerwork done​
  • Time = powerwork doneTime\ =\ \frac{power}{work\ done}Time = work donepower​
  • Time = work x powerTime\ =\ work\ x\ powerTime = work x power
  • All of above

2. Which of the following statements show kinetic energy?

  • The battery of a lit flashlight
  • A golf ball placed at the edge of the hole
  • A river flowing down a hill
  • Both A & B

3. What are the factors that can affect the power?

  • Work done and time
  • Work done and velocity
  • Work done and force
  • None of these

4. What will be the formula if we are finding the TIME using the formula of power?

  • Time = work donepowerTime\ =\ \frac{work\ done}{power}Time = powerwork done​
  • Time = powerwork doneTime\ =\ \frac{power}{work\ done}Time = work donepower​
  • Time = work x powerTime\ =\ work\ x\ powerTime = work x power
  • All of above

5. What is the unit for work?

  • Joules
  • Newton
  • Watts
  • All of above

6. When did an object have more kinetic energy?

  • When the time given on an object doubled
  • When the mass of an object doubled
  • When the mass of an object becomes half
  • All of above

7. What are the two necessary conditions for work to be done?

  • Force and Velocity
  • Force and Displacement
  • Force and Time
  • None of these

8. What is the unit for work?

  • Joules
  • Newton
  • Watts
  • All of above

9. In comparing of table tennis ball and tennis ball, which ball covered a longer distance once it was placed in a slope?

  • table tennis ball
  • tennis ball
  • same distance
  • All of above

10. What are the factors affect gravitational potential energy?

  • Mass and Velocity
  • Mass, Acceleration due to gravity, and Height
  • Mass, Acceleration due to gravity and Time
  • None of these

11. When did an object have more kinetic energy?

  • When the time given on an object doubled
  • When the mass of an object doubled
  • When the mass of an object becomes half
  • All of above

12. In comparing of table tennis ball and tennis ball, which ball covered a longer distance once it was placed in a slope?

  • table tennis ball
  • tennis ball
  • same distance
  • All of above

13. What are the factors that can affect the power?

  • Work done and time
  • Work done and velocity
  • Work done and force
  • None of these

14. Which of the following statements show kinetic energy?

  • The battery of a lit flashlight
  • A golf ball placed at the edge of the hole
  • A river flowing down a hill
  • Both A & B

15. What are the two necessary conditions for work to be done?

  • Force and Velocity
  • Force and Displacement
  • Force and Time
  • None of these

16. What are the factors affect gravitational potential energy?

  • Mass and Velocity
  • Mass, Acceleration due to gravity, and Height
  • Mass, Acceleration due to gravity and Time
  • None of these

Enjoyed the Quiz. Share this with friends

Comments

Add Your Review

Your email address will not be published.

Subscribe to Newsletter!

Subscribe to get latest updates and information.