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Ch. 16 Weather Test
Multiple Choice
| Question | Answer |
|---|---|
| Weather refers to the state of the atmosphere | at a specific time and place |
| In what way does the Sun influence weather? | The sun evaporates water, heats the water on Earth and heats the air in the atmosphere. |
| What part of air determines its temperature | The average motion or speed of the molecules |
| What causes wind? | Air moving from regions of high pressure to regions of low pressure |
| A barometer measures | Air pressure |
| Which type of air holds more humidity? | warm air |
| The measure of amounts of moisture in the air COMPARED to the amount needed for saturation at a certain temperature is called? | Relative Humidity |
| When the temperature reaches its___________, snow hail, rain or condensation is likely to form. | Dew point |
| What does water vapor condense around to form clouds? | Small particles of dust and snow |
| Stratus clouds form | layers of even sheets in the sky |
| What causes low pressure systems to swirl in a counter clockwise direction? | Earths rotation |
| When two air masses collide, its called a | Front |
| An occluded front includes | Three air masses |
| The term stationary describes a front that | stops advancing |
| What is the cause of strong winds associated with thunderstorms? | Strong updrafts of warm moist air, and sinking rain cooled air. |
| How does lightening occur? | Different parts of the cloud become oppositely charged and currents flow between them |
| what is the difference between a tornado and a hurricane? | Tornadoes occur over land and hurricanes occur over the sea |
| What specifications classify a storm as a blizzard? | Severe winds, temperatures below -12 Celsius and poor visibility for 3 hours or more |
| Stormy weather is associated with ______ pressure areas | Low |
| Fair weather is associated with ________ pressure areas | High |
| A cold front is where colder air advances _____________ warm air. | Under |
| A warm front is where warmer advances_________ cold air. | Over |
| The National Weather Service would issue a ________ if conditions are favorable for severe weather to develop. | Watch |
| The National Weather Service would issue a ___________ if severe weather conditions already exists. | Warning |
| ________________________ study and predict weather. | Meteorologists |
| A ____________ shows the weather a specific locations on Earth's surface. | Station Model |
| What is Not an instrument used to gather weather data? | Microscope |
| Weather fronts move from | West to east |
| Hurricane names | Alternate by gender |
| If a tornado warning is issued, you should | Take cover in a basement/cellar/bathroom |
| How does thunder occur? |
Created by:
placet
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