9th Class Physics Chapter 6 Test6. Work and Energy

Q1. Multiple choice questions (Attempt all · 10 × 1 = 10)

1. What is the primary component of natural gas?
   1. Carbon Dioxide
   2. Methane
   3. Ethanol
   4. Nitrogen
2. Which fossil fuel is the most abundant globally?
   1. Oil
   2. Natural Gas
   3. Coal
   4. Nuclear
3. What will be magnitude of work if a force of 25N pulse a stone through a distance of 5m in its direction:
   1. 25 J
   2. 50 J
   3. 75 J
   4. 125 J
4. A force is acting on body but causes no displacement. The work down on the body is.
   1. Positive
   2. Negative
   3. Zero
   4. Infinite
5. 1 hp = __________ W.
   1. 756 W
   2. 716 W
   3. 736 W
   4. 746 W
6. The energy possessed by a body due to its position is called:
   1. kinetic energy
   2. potential energy
   3. chemical energy
   4. muscular energy
7. 1120 W are equal to:
   1. 1 hp
   2. 2.5 hp
   3. 1.5 hp
   4. 2.7 hp
8. The kinetic energy of the wind can be used to turn a turbine which in turn produces:
   1. Carbon Dioxide
   2. Electricity
   3. Ethanol
   4. All of these
9. A body of weight 100 N is lifted to height 10 meter in 2 seconds. What is its potential energy?
   1. 100 J
   2. 500 J
   3. 1000 J
   4. 2000 J
10. Energy is a quantity:
    1. Derived
    2. Base
    3. Scalar
    4. Both a & c