Quiz on Atmospheric Pressure (General Science)

1. Why do knives and blades have sharp edges?

2. Why are ski-boards that are used to glide over snow long and broad?

3. Why does ink not spill out of an ink dropper?

4. What is the unit of pressure?

5. What happens to the pressure inside a pump when the piston is pulled up?

6. What is equal to air pressure inside our body?

7. Who invented air brakes?

8. When were air brakes first used?

9. How do fluid substances exert pressure?