General Science Class 9 MCQS

If a body of mass 1 kg is moving with velocity of 1 m/sec. then K.E of the body will be?

1. 3 Joules
2. 4 Joules
3. 1/2 Joule
4. 1 Joule

If a machine performs 20 J of work in 10 sec. then it power is :

1. 200 watt
2. 20 watt
3. 2 watt
4. 0.2 watt

The energy released during fission or fusion reaction is called?

1. Solar energy
2. Geothermal energy
3. Tidal energy
4. Nuclear energy

Which is the renewable source of energy?

1. Solar and wind
2. Coal
3. Natural gas
4. Petroleum

The ratio of output to input is called?

1. Energy
2. Work
3. Power
4. Efficiency

Work done per unit time is called :

1. Efficiency
2. Energy
3. Power
4. Force

Coal, gas and oil are all examples of :

1. Tidal energy
2. Nuclear energy
3. Fossil fuel energy
4. Biomass energy

______ is not a renewable source of energy.

1. Solar energy
2. Coal
3. Wind energy
4. Geothermal energy

Heat is the form of :

1. Pressure
2. Weight
3. Energy
4. All

Heat capacity is the product of mass and :

1. Boiling point
2. Freezing point
3. Energy
4. Specific heat of material