Question 1

In Ontario, most precipitation that falls to the surface as rain originally formed as which precipitation type?

Accepted Answer

A) rain 
B) freezing rain 
C) ice pellets 
D) snow 
A) rain 
B) freezing rain 
C) ice pellets 
D) snow

Question 2

Which of the following is the name for snowflakes and ice crystals falling from high cirriform clouds?

Accepted Answer

A) snow squalls 
B) graupel 
C) fallstreaks 
D) snow flurries 
A) snow squalls 
B) graupel 
C) fallstreaks 
D) snow flurries

Question 3

Which of the following describes supercooled cloud droplets?

Accepted Answer

A) water droplets that have had all their latent heat removed 
B) liquid droplets that are cooler than the air around them 
C) liquid droplets observed at temperatures below 0°C 
D) ice crystals surrounded by air warmer than 0°C 
A) water droplets that have had all their latent heat removed 
B) liquid droplets that are cooler than the air around them 
C) liquid droplets observed at temperatures below 0°C 
D) ice crystals surrounded by air warmer than 0°C

Question 4

The first raindrops to reach the ground at the beginning of a rain shower are often very large. Explain why this is so.

Accepted Answer

The first raindrops to reach the ground

Question 5

Which of the following forms of precipitation has the greatest diameter?

Accepted Answer

A) hailstone 
B) snow grain 
C) ice pellet 
D) graupel 
A) hailstone 
B) snow grain 
C) ice pellet 
D) graupel

Question 6

Which of the following describes a cloud composed entirely of ice crystals?

Accepted Answer

A) supersaturated 
B) frozen 
C) glaciated 
D) supercooled 
A) supersaturated 
B) frozen 
C) glaciated 
D) supercooled

Question 7

Which of the following factors makes it possible for condensation on hygroscopic nuclei to occur at relative humidities less than 100 percent?

Accepted Answer

A) curvature effect 
B) crystalline structure of hygroscopic nuclei 
C) solute effect 
D) electrical charge on hygroscopic nuclei 
A) curvature effect 
B) crystalline structure of hygroscopic nuclei 
C) solute effect 
D) electrical charge on hygroscopic nuclei

Question 8

Which of the following statements is accurate when comparing large raindrops to small raindrops?

Accepted Answer

A) Large raindrops fall faster, and their terminal velocity is higher. 
B) Large raindrops fall slower, and their terminal velocity is lower. 
C) Large raindrops fall slower, and their terminal velocity is higher. 
D) Large raindrops fall faster, and their terminal velocity is lower. 
A) Large raindrops fall faster, and their terminal velocity is higher. 
B) Large raindrops fall slower, and their terminal velocity is lower. 
C) Large raindrops fall slower, and their terminal velocity is higher. 
D) Large raindrops fall faster, and their terminal velocity is lower.

Question 9

Which of the following terms refers to a process where a falling ice crystal collides with supercooled water droplets, which stick and freeze?

Accepted Answer

A) agglomeration 
B) nucleation 
C) riming 
D) deposition 
A) agglomeration 
B) nucleation 
C) riming 
D) deposition

Question 10

Large quantities of which of the following substances are injected into a thunderstorm as the primary method for preventing the growth of large, destructive hailstones?

Accepted Answer

A) silver iodide 
B) hydrophobic nuclei 
C) ice crystals 
D) dry ice 
A) silver iodide 
B) hydrophobic nuclei 
C) ice crystals 
D) dry ice

Question 11

Which of the following is the name for a light shower of snow of short duration that falls intermittently from cumuliform clouds?

Accepted Answer

A) snow flurries 
B) a cloud burst 
C) a snow squall 
D) virga 
A) snow flurries 
B) a cloud burst 
C) a snow squall 
D) virga

Question 12

Which of the following describes why a fluffy covering of snow is able to protect sensitive plants and their root systems from damaging low temperatures?

Accepted Answer

A) Snow is a good insulator. 
B) Melting snow releases latent heat. 
C) Snow is a good emitter of infrared energy. 
D) Snow is a good reflector of sunlight. 
A) Snow is a good insulator. 
B) Melting snow releases latent heat. 
C) Snow is a good emitter of infrared energy. 
D) Snow is a good reflector of sunlight.

Question 13

Which of the following statements best describes the curvature effect?

Accepted Answer

A) Small droplets collide and coalesce more easily than larger droplets. 
B) Small ice crystals have a six-sided shape. 
C) Large cloud droplets fall faster than small droplets. 
D) Small droplets evaporate more quickly than large droplets. 
A) Small droplets collide and coalesce more easily than larger droplets. 
B) Small ice crystals have a six-sided shape. 
C) Large cloud droplets fall faster than small droplets. 
D) Small droplets evaporate more quickly than large droplets.

Question 14

Which of the following terms refers to rain that falls from a cloud and evaporates before reaching the ground?

Accepted Answer

A) graupel 
B) dry rain 
C) sleet 
D) virga 
A) graupel 
B) dry rain 
C) sleet 
D) virga

Question 15

Explain why it is much more difficult to measure snowfall amount than rainfall amount.

Accepted Answer

Measuring snowfall amount is much more d

Question 16

Which of the following statements explains why large cloud droplets fall faster than small cloud droplets?

Accepted Answer

A) The ratio of the drop's surface area to its weight is smaller. 
B) The ratio of the drop's surface area to its weight is larger. 
C) Gravity acts more strongly on larger droplets. 
D) Gravity acts less strongly on larger droplets. 
A) The ratio of the drop's surface area to its weight is smaller. 
B) The ratio of the drop's surface area to its weight is larger. 
C) Gravity acts more strongly on larger droplets. 
D) Gravity acts less strongly on larger droplets.

Question 17

How are snowflakes able to fall in air temperatures that are above freezing?

Accepted Answer

Snowflakes can fall in air temperatures

Question 18

Which of the following is the most important factor in the production of raindrops?

Accepted Answer

A) the liquid-water content of the cloud 
B) the updrafts within the cloud 
C) the cloud thickness 
D) the range of droplet sizes within the cloud 
A) the liquid-water content of the cloud 
B) the updrafts within the cloud 
C) the cloud thickness 
D) the range of droplet sizes within the cloud

Question 19

Which of the following defines contact nucleation?

Accepted Answer

A) the joining of many nuclei to form an ice nucleus 
B) the freezing of supercooled droplets by contact with a nucleus 
C) the sticking together of ice crystals to make a snowflake 
D) the freezing of supercooled droplets when they make contact with a supercooled surface 
A) the joining of many nuclei to form an ice nucleus 
B) the freezing of supercooled droplets by contact with a nucleus 
C) the sticking together of ice crystals to make a snowflake 
D) the freezing of supercooled droplets when they make contact with a supercooled surface

Question 20

Satellites measure rainfall from space using which of the following instruments?

Accepted Answer

A) ceilometer 
B) calibrated rain gauge 
C) tipping-bucket rain gauge 
D) radar 
A) ceilometer 
B) calibrated rain gauge 
C) tipping-bucket rain gauge 
D) radar

In Ontario, most precipitation that falls to the surface as rain originally formed as which precipitation type?

Which of the following is the name for snowflakes and ice crystals falling from high cirriform clouds?

Which of the following describes supercooled cloud droplets?

The first raindrops to reach the ground at the beginning of a rain shower are often very large. Explain why this is so.

Which of the following forms of precipitation has the greatest diameter?

Which of the following describes a cloud composed entirely of ice crystals?

Which of the following factors makes it possible for condensation on hygroscopic nuclei to occur at relative humidities less than 100 percent?

Which of the following statements is accurate when comparing large raindrops to small raindrops?

Which of the following terms refers to a process where a falling ice crystal collides with supercooled water droplets, which stick and freeze?

Large quantities of which of the following substances are injected into a thunderstorm as the primary method for preventing the growth of large, destructive hailstones?

Which of the following is the name for a light shower of snow of short duration that falls intermittently from cumuliform clouds?

Which of the following describes why a fluffy covering of snow is able to protect sensitive plants and their root systems from damaging low temperatures?

Which of the following statements best describes the curvature effect?

Which of the following terms refers to rain that falls from a cloud and evaporates before reaching the ground?

Explain why it is much more difficult to measure snowfall amount than rainfall amount.

Which of the following statements explains why large cloud droplets fall faster than small cloud droplets?

How are snowflakes able to fall in air temperatures that are above freezing?

Which of the following is the most important factor in the production of raindrops?

Which of the following defines contact nucleation?

Satellites measure rainfall from space using which of the following instruments?

Earth and Its Atmosphere

Energy: Warming Earth and the Atmosphere

Seasonal and Daily Temperatures

Atmospheric Humidity

Condensation: Dew, Fog, and Clouds

Stability and Cloud Development

Air Pressure and Winds

Wind: Small-Scale and Local Systems

Wind: Global Systems

Air Masses and Fronts

Middle-Latitude Cyclones

Weather Forecasting

Thunderstorms

Tornadoes

Hurricanes

Earths Changing Climate

Global Climate

Air Pollution

Filters

Exam 7: Precipitation

In Ontario, most precipitation that falls to the surface as rain originally formed as which precipitation type?

Which of the following is the name for snowflakes and ice crystals falling from high cirriform clouds?

Which of the following describes supercooled cloud droplets?

The first raindrops to reach the ground at the beginning of a rain shower are often very large. Explain why this is so.

Which of the following forms of precipitation has the greatest diameter?

Which of the following describes a cloud composed entirely of ice crystals?

Which of the following factors makes it possible for condensation on hygroscopic nuclei to occur at relative humidities less than 100 percent?

Which of the following statements is accurate when comparing large raindrops to small raindrops?

Which of the following terms refers to a process where a falling ice crystal collides with supercooled water droplets, which stick and freeze?

Large quantities of which of the following substances are injected into a thunderstorm as the primary method for preventing the growth of large, destructive hailstones?

Which of the following is the name for a light shower of snow of short duration that falls intermittently from cumuliform clouds?

Which of the following describes why a fluffy covering of snow is able to protect sensitive plants and their root systems from damaging low temperatures?

Which of the following statements best describes the curvature effect?

Which of the following terms refers to rain that falls from a cloud and evaporates before reaching the ground?

Explain why it is much more difficult to measure snowfall amount than rainfall amount.

Which of the following statements explains why large cloud droplets fall faster than small cloud droplets?

How are snowflakes able to fall in air temperatures that are above freezing?

Which of the following is the most important factor in the production of raindrops?

Which of the following defines contact nucleation?

Satellites measure rainfall from space using which of the following instruments?

Earth and Its Atmosphere

Energy: Warming Earth and the Atmosphere

Seasonal and Daily Temperatures

Atmospheric Humidity

Condensation: Dew, Fog, and Clouds

Stability and Cloud Development

Air Pressure and Winds

Wind: Small-Scale and Local Systems

Wind: Global Systems

Air Masses and Fronts

Middle-Latitude Cyclones

Weather Forecasting

Thunderstorms

Tornadoes

Hurricanes

Earths Changing Climate

Global Climate

Air Pollution

Filters