Advertisements
Advertisements
प्रश्न
Describe a simple experiment with the help of a diagram to show that Air exerts pressure
Advertisements
उत्तर
Air exerts pressure
- Take an open can, fill it with water, and heat it. On the formation of steam, place the cap on tightly and keep the can aside.
Observation: On condensation of the steam the pressure inside the can reduce. The air outside exerts pressure on the can which crumples slowly.
Conclusion: Air exerts pressure.
संबंधित प्रश्न
Match the following :
| Column A | Column B |
| (a) Global warming | 1. Hydrated ferric oxide |
| (b) Acid rain | 2. Manganese dioxide |
| (c) Rust | 3. Carbon dioxide |
| (d) Catalyst | 4. Methane |
| (e) Photosynthesis | 5. Nitrogen Dioxide |
What do you observe when Carbon dioxide gas is passed through lime water.
Name the processes which maintain the balance between oxygen and carbon dioxide in the air. How is it done?
How is air useful to windmills?
How is air useful to scooters and cars.?
Tick (√) the correct alternative from the choice given for the following statement.
The gases which cause acid rain are
With whom should I pair up?
| Group A | Group B | ||
| (1) | Air | (a) | Excretion |
| (2) | Water | (b) | Scattering of light |
| (3) | Soil | (c) | Plasticity |
Draw a neat labelled diagram for the following experiment.
To determine the component of air used up in burning, by using phosphorus and a bell jar.
State whether the following statement is true or false. If false, correct them.
Air does not occupy any space.
In a number of musical instruments, air plays an important role. Can you name some such instruments?
