Homework
Chapter 15 section 2
1.
Use each of the following terms in a
separate sentence: thermal conduction,
radiation, convection, greenhouse effect,
and global warming.
(write the definition)
2. Which of the following is the best
example of thermal conduction?
a. a light bulb warming a lampshade
b. an egg cooking in a frying pan
c. water boiling in a pot
d. gases circulating in the atmosphere
3. Describe three ways that energy is
transferred in the atmosphere.
Energy from the sun warms the atmosphere by
radiation.
The Earth reradiates energy from the sun,
which warms the atmosphere.
The air directly above the Earth’s surface is
also heated by conduction.
Warm air is then circulated through the
atmosphere by convection currents.
4. What is the difference between the green
house effect and global warming?
The green house effect is the Earth’s natural
heating process. Global warming is the rise in
the average global temperature which can
caused an increase in the greenhouse effect.
5. What is the radiation balance?
It is the balance between incoming solar
energy and thermal energy that the Earth
radiates into space.
7. How does the process of convection rely
on radiation?
It relies on radiation from the sun. If
radiation from the sun stopped, air would not
be warmed and convection currents would
eventually stop circulating.