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Worksheet M.1
Name: _________
Weather Factors
Date: _________
I. Multiple choice. Circle the correct answer:
1. What percentage of sunlight is absorbed by the surface of the earth?
a) 25%
b) 50%
c) 5%
d) 15%
2. Energy from the Sun travels to earth’s surface by __________.
a) radiation
b) convection
c) evaporation
d) conduction
3. Rising warm air transports thermal energy by __________.
a) conduction
b) convection
c) that is closest to the Earth surface
d) radiation
4. In the troposphere as the altitude increases __________.
a) air pressure decreases
b) temperature decreases
c) air density decreases
d) all of the above
5. A local wind that blows from the sea onto the land on a hot sunny day is called___________.
a) jet stream
b) sea breeze
c) land breeze
d) local wind
6. A type of cloud that form in flat layers and covers much of the sky is __________.
a) cirrus
b) cumulus
c) fog
d) stratus
7. Hailstones form only in the type of clouds caleld ___________.
a) nimbostratus
b) altocumulus
c) cumulonimbus
d) cirrocumulus
8. Rain, sleet and hail are all forms of ____________.
a) evaporation
b) condensation
c) precipitation
d) convection
9. Wind speed is often measured with a (an) __________.
a) wind vane
b) anemometer
c) psychrometer
d) thermometer
10. In Northern Hemisphere, global winds that blow from the southwest to the northeast are…
a) polar easterlies
b) trade winds
c) prevailing easterlies
d) prevailing westerlies
Prepared by Mr. Victor
II. Completion. Complete the sentences with the words from the box. Be aware that one word
is not used:
air
Coriolis effect
stratus
water cycle
stratosphere
rain
ai pressure
11. The three main types of clouds are cumulus, cirrus and ______________.
12. The most common type of precipitation is _____________.
13. When the global winds don not follow a straight path from the North Pole to the equator is
called ______________.
14. Winds are caused by differences in the ____________.
15. The movement of water in the atmosphere is called the ______________.
III. True or False.
__________ 16. The part of sunlight with the shortest wavelength is visible light.
__________ 17. When you walk barefoot on hot sand, heat is transferred to your feet from the
sand by radiation.
__________ 18. Wind direction is often measured with a wind vane.
__________ 19. A wind blowing toward the north is called a north wind.
__________ 20. Stratus clouds are made mostly of ice crystals.
IV. Interpreting tables:
Wind-Chill Temperature Index
Wind speed
Equivalent Air Temperature (0C)
0 km/h
50
00
-50
-100
10 km/h
2.70
-3.30
-9.30
-15.30
0
0
0
15 km/h
1.7
-4.4
-10.6
-16.70
20 km/h
1.10
-5.20
-11.60
-17.90
21. On a windy winter’s day, the actual air temperature is 50C and the wind speed is 15 km/h.
What would the wind chill factor make the temperature feel like to a person outdoors?
a) 50C
b) 00C
c) 1.70C
d) -4.40C
22. Use trends shown in the data table to predict how cold the air temperature would feel if
the actual temperature was 00C, and the wind speed was 25 km/h.
a) about 00C
b) about -60C
c) about -150C
d) about 25 0C
V. Answer the questions:
23. List 3 forms of radiation from the Sun.
_____________________________________________________________________________
24. Which form of radiation has the longest wavelength?
_____________________________________________________________________________
25. How might conditions be different without the greenhouse effect?
_____________________________________________________________________________
26. Name 3 ways the heat can be transferred in the troposphere.
_____________________________________________________________________________
27.Name 3 major global wind belts.
_____________________________________________________________________________
28. Name 2 conditions that are necessary for clouds to form: ___________________________
Prepared by Mr. Victor