| 1 |
In severe winter, the droplets of water in the atmosphere are frozens called. |
- A. dew
- B. fog
- C. Frost
- D. None of these
|
| 2 |
Materials taht don't take the shpaed of the container. |
- A. Solids
- B. Liquids
- C. gases
- D. all of these
|
| 3 |
When a solid object is heated its particles begin to. |
- A. Vibrate fast
- B. Vibrate slowly
- C. Stop vibrating
- D. Move feely
|
| 4 |
When a gas condenses, it becomes a |
- A. Solid
- B. Liquid
- C. Crystal
- D. Another gas
|
| 5 |
Particles are arragned on regular patterns and packed strongly together in. |
- A. gas
- B. liquid
- C. Solid
- D. None of these
|
| 6 |
The process of changing gas into liquid. |
- A. Melting
- B. Evaporation
- C. Condensation
- D. Freezing
|
| 7 |
Diffusion takes place in |
- A. Liquids
- B. gases
- C. Both a and b
- D. Solids
|
| 8 |
Change of a solid object into liquid state on heating is called. |
- A. Freezing
- B. Melting
- C. Boiling
- D. Evaporation
|
| 9 |
Particles move freely in all directions in |
- A. Solids
- B. Liquids
- C. gases
- D. None of these
|
| 10 |
The rate of diffusion depends on. |
- A. Size of the particles
- B. Temperature
- C. Size of space between particles
- D. All of the above
|
