# M1 Air Pressure and RH

## Quiz by Ian Gabriel

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15 questions
• Q1

An instrument used to measure air pressure.

Thermometer

Barometer

Wind vane

Hygrometer

30s
• Q2

An instrument used to measure relative humidity.

Anemometer

Barometer

Hygrometer

Wind vane

30s
• Q3

The blue arrow shows that the warm air rises.

true
false
True or False
30s
• Q4

The red arrow shows that the warm air sinks.

false
true
True or False
30s
• Q5

Cold air "sinks".

Yes, and it is going upward.

Yes, and it is going downward.

No, it's the warm air.

45s
• Q6

What can you do when you are in a place where there is high pressure?

Fly a kite.

Play football with friends.

Swim in the ocean.

All are correct.

60s
• Q7

What is the best thing to do when you are in a place where there is low pressure?

Always bring umbrella.

Go swimming with friends.

Fishing is a good idea!

Stay in a safe place.

60s
• Q8

WIND is formed when there is,

high pressure area.

low pressure area.

high and low pressure area.

45s
• Q9

Evaporation is when

solid turns to gas.

liquid turns to gas.

liquid turns to solid

gas turns to liquid.

45s
• Q10

Evaporation is possible when there is ...............................

Low air temperature.

Sunlight.

No Sun.

30s
• Q11

Cold air temperature creates less space between water vapor.

true
false
True or False
30s
• Q12

Warm air temperature creates more space between water vapor.

true
false
True or False
30s
• Q13

Air temperature changes from 30OC to  38OC. What will happen to the RH or relative humidity?

RH will stay the same.

RH will increase.

RH will decrease.

60s
• Q14

RH or relative humidity changes from 40% to 65%. What does it imply?

Air temperature increases.

Air temperature decreases.

60s
• Q15

100% RH suggests that,

the air cannot hold any amount of water vapor.

the air temperature is high.

the air has more space for water vapor.

60s

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