Name ______
Air Masses/High and Low Pressure Assessment
1. What happens to air pressure as you move upward into the atmosphere?
a. Increasesc. Stays the same
b. Decreases
2. What causes winds?
a. Differences in precipitationc. Differences in air pressure
b. Differences in humidity
3. What causes warm air to rise?
a. It is less dense than cold air.c. It has a higher pressure than cold air.
b. It weighs more than cold air.d. It’s more dense than cold air.
4. In high air pressure, the molecules are…
a. warm and moving slow.c. far apart and moving fast.
b. close together and moving slowly.d. hot and moving rapidly.
5. A low pressure system usually brings….
a. sunny and fair weather.c. warmer and sunny weather.
b. precipitation.d. cooler and dry weather.
6. What happens when a high density air mass pushes a low density air mass?
a. High density air rises and cools.
b. High density air rises and warms.
c. Low density air rises and cools.
d. Low density air rises and warms.
7. Which of the following weather elements always decreases as we climb upward in the atmosphere?
a. Windc. Pressure
b. Cyclesd. Moisture
8. Air moves from areas of ______pressure to ______pressure
a. low to lowc. low to high
b. high to lowd. high to high
9. As the temperature increases the air pressure…
a. increases.c. doesn’t change.
b. decreases
10. In low air pressure the molecules are…
a. warm and moving slow.c. far apart and moving rapidly.
b. close together and moving slowly.d. hot and moving rapidly.
Use the diagram to answer questions #11 & #12.
11. A high pressure system usually brings…
a. rain.c. warmer and sunny weather.
b. snow, sleet, or hail.d. fair, sunny, and cooler weather.
Short Answer
12. Based on the direction of air movement label the high (H) pressure air, label the low (L) pressure air.
Phenomenon
You live in Northern Utah and want to go on a picnic with your family and need to know if you should prepare for rain and wind. Use the map below to make your decision.
13. What type weather can you expect?
______
______
______
14. Using your knowledge of weather systems, explain your answer to #13.
______
______
______
______
______
Air Masses/High and Low Pressure Assessment – Key I
1. What happens to air pressure as you move upward into the atmosphere?
a. Increasesc. Stays the same
b. Decreases
b. Decreases
2. What causes winds?
a. Differences in precipitationc. Differences in air pressure
b. Differences in humidity
c. Differences in air pressure.
3. What causes warm air to rise?
a. It is less dense than cold air.c. It has a higher pressure than cold air.
b. It weighs more than cold air.d. It’s more dense than cold air.
a. It is less dense than cold air.
4. In high air pressure, the molecules are…
a. warm and moving slow.c. far apart and moving fast.
b. close together and moving slowly.d. hot and moving rapidly.
b. close together and moving slowly.
5. A low pressure system usually brings….
a. sunny and fair weather.c. warmer and sunny weather.
b. precipitation.d. cooler and dry weather.
b. precipitation
6. What happens when a high density air mass pushes a low density air mass?
a. High density air rises and cools.
b. High density air rises and warms.
c. Low density air rises and cools.
d. Low density air rises and warms.
c. Low density air rises and cools.
7. Which of the following weather elements always decreases as we climb upward in the atmosphere?
a. Windc. Pressure
b. Cyclesd. Moisture
c. Pressure.
8. Air moves from areas of ______pressure to ______pressure
a. low to lowc. low to high
b. high to lowd. high to high
b. high to low
9. As the temperature increases the air pressure…
a. increases.c. doesn’t change.
b. decreases
b. decreases
10. In low air pressure the molecules are…
a. warm and moving slow.c. far apart and moving rapidly.
b. close together and moving slowly.d. hot and moving rapidly.
c. far apart and moving rapidly.
Use the diagram to answer questions #11 & #12.
11. A high pressure system usually brings…
a. rain.c. warmer and sunny weather.
b. snow, sleet, or hail.d. fair, sunny, and cooler weather.
c. warmer and sunny weather
Short Answer
12. Based on the direction of air movement label the high (H) pressure air, label the low (L) pressure air.
An “H” above cold air and an “L” below warm air.
Phenomenon
You live in Northern Utah and want to go on a picnic with your family and need to know if you should prepare for rain and wind. Use the map below to make your decision.
13. What type weather can you expect?
______
______
______
14. Using your knowledge of weather systems, explain your answer to #13.
______
______
______
______
______
Air Masses/High and Low Pressure Assessment
Key II
1. b (3 choices)
2. c (3 choices)
3. a
4. b
5. b
6. c
7. c
8. b
9. b (3 choices)
10. c
11. c
Short Answer
12. Based on the direction of air movement label the high (H) pressure air, label the low (L) pressure air.
An “H” above cold air and an “L” below warm air.
Phenomenon
You live in Northern Utah and want to go on a picnic with your family and need to know if you should prepare for rain and wind. Use the map below to make your decision.
13. What type weather can you expect?
______
______
______
14. Using your knowledge of weather systems, explain your answer to #13.
______
______
______
______
______
1