9 ICSE QUIZ-4 WORK, POWER AND ENERGY (PHYSICS) Welcome to your 9 ICSE QUIZ-4 WORK, POWER AND ENERGY (PHYSICS) Quiz on Work, power and energy Name Email ID Contact No. 1. Work means: Effort Interview Achievement Get -together None 2. In tug of war work done by loosing team is : Zero Positive Negative None of these None 3. In tug of war work done by winning team is : Zero Positive Negative None of these None 4. Work is done on a body when: Force acts on the body but the body is not displaced Force does not act on the body but it is displaced Force acts on the body in a direction perpendicular to the direction of the displacement of the body Force acts on the body and the body is either displaced in the direction of force or opposite to the direction of force None 5. No work is done when - a nail is plugged in a wooden board a box is pushed along a horizontal floor there is no component of force parallel to the direction of motion there is no component of force perpendicular to the direction of motion None 6. Work done - is always positive is always negative can be positive, negative or zero none of these None 7. Work done upon a body is- a vector quantity a scalar quantity (A) and (B) both are correct none of these None 8. A body at rest can have: Speed Velocity Momentum Energy None 9. Types of mechanical energy are: Kinetic energy only Potential energy only Kinetic energy and potential energy both Neither kinetic energy nor potential energy None 10. Force F acts on a body such that force F makes an angle θ with the horizontal direction and the body is also displaced through a distance S in the horizontal direction, then the work done by the force is - FS FS Cos θ FS Sin θ Zero Time's up Time is Up!
