| 1 |
Boiling point of wate is. |
- A. 0 oC
- B. 0 oF
- C. 100 oC
- D. 100 oF
|
| 2 |
When a solid object is heated its particles begin to. |
- A. Vibrate fast
- B. Vibrate slowly
- C. Stop vibrating
- D. Move feely
|
| 3 |
Which of the following is opposite the boiling? |
- A. Evaporation
- B. Melting
- C. Condensation
- D. Freezing
|
| 4 |
Changing of substances directly from solid state to gaseous state on beating is termed as. |
- A. Boiling
- B. Diffusion
- C. Melting
- D. Sublimation
|
| 5 |
The rate of diffusion depends on. |
- A. Size of the particles
- B. Temperature
- C. Size of space between particles
- D. All of the above
|
| 6 |
In severe winter, the droplets of water in the atmosphere are frozens called. |
- A. dew
- B. fog
- C. Frost
- D. None of these
|
| 7 |
Change of a solid object into liquid state on heating is called. |
- A. Freezing
- B. Melting
- C. Boiling
- D. Evaporation
|
| 8 |
Solids and liquid objects cannot be compressed easily as their particles are |
- A. Closely packed
- B. Lossely packed
- C. Lacking spaces among them
- D. Scattered irregularly
|
| 9 |
Particles are arragned on regular patterns and packed strongly together in. |
- A. gas
- B. liquid
- C. Solid
- D. None of these
|
| 10 |
Liquid have fix |
- A. Shape
- B. Volume
- C. Arrangement
- D. All of these
|