Temperature and Air Pressure

Q. Why do astronauts wear special protective space suits when they are in space? Select the most appropriate answer.

1. To protect them from extreme temperatures.
2. Absence of air in space.
3. (a) and (c) above.
4. The suits are designed to produce oxygen.

Q. Places which have a higher temperature compared to the surrounding areas are regions of _______.

1. moderate pressure
2. low pressure
3. high pressure
4. manageable pressure

Q. _______ is the pressure exerted by the weight of the air at a given place.

1. Air pressure
2. Air force
3. Wind pressure
4. Wind force

Q. As we go up in the atmosphere, ___________.

1. air pressure remains constant
2. air pressure rises
3. air pressure rises and falls haphazardly
4. air pressure falls

Q. Places which have a low temperature compared to the surrounding areas are regions of _______.

1. high pressure
2. moderate pressure
3. low pressure
4. manageable pressure

Q. Which of the following is/are the reasons why air molecules rush out when a balloon's neck is opened?

1. More number of air molecules are present inside the ballon.
2. Air moves from high pressure regions to low pressure regions.
3. Air pressure outside an inflated balloon is higher.
4. Temperature of the air inside the balloon is lower.

Q. In areas where temperature is low, the _________.

1. air near the surface becomes heavy and sinks
2. air near the surface does not heat up, but it rises
3. air does not heat up and therefore, it does not rise
4. air near the surface becomes heavy but it does not sink

Q. Places which have a higher temperature compared to the surrounding areas are regions of _______.

1. low pressure
2. high pressure
3. moderate pressure
4. manageable pressure