Quarter 1

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1. The speed of a wave depends on:

A Amplitude only

B Frequency only

C Nature of medium

D Source of wave

2. The SI unit of specific heat capacity is:

A J/kg

B J/°C

C J/kg°C

D W/m°C

3. Which wave can travel through vacuum?

A Sound wave

B Water wave

C Electromagnetic wave

D Seismic wave

4. Heat transfer in room heaters mainly occurs by:

A Conduction

B Radiation

C Convection

D Evaporation

5. Pressure of gas decreases if:

A Temperature increases

B Volume decreases

C Volume increases

D Collisions increase

6. In transverse waves, particles vibrate:

A Parallel to wave direction

B Along the wave path

C Perpendicular to wave direction

D In spiral paths

7. Which factor increases the rate of evaporation?

A Low temperature

B High humidity

C Large surface area

D Low wind speed

8. Antinodes in a standing wave are points of:

A Zero displacement

B Minimum energy

C Maximum displacement

D No vibration

9. Which type of wave requires a material medium?

A Electromagnetic wave

B Mechanical wave

C Light wave

D Radio wave

10. As a tsunami reaches shallow water, its height:

A Decreases

B Remains same

C Increases

D Becomes zero

Quarter 1

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