Week #4 Assignment
1.
When 200 calories of energy are added to 40 grams of a material, its
temperature increases 15o C. You could use
this information to
determine the object's
a.
density b.
kinetic energy c.
latent heat d. specific
heat e. thermal
conductivity
2. One _____________________ is the
energy needed to warm 1 gram of water 1o C.
3. Sunlight energy added to water could
be used to ____________________ the water or to ___________________
the
water.
4. Match each of the material below at
left with an appropriate energy transport process from the list at
right.
air_______
water_______
a.
conduction
b.
convection
copper_______
c.
latent
heat
5. The energy associated with the random,
haphazard, motions of atoms or molecules in a substance is
a. specific
heat b. kinetic
energy c. latent
heat d.
temperature
6. An air temperature of 70o F
feels
comfortable. 70o F water feels cold because water has
_______
than air.
a. higher specific
heat b. lower specific
heat c. higher thermal
conductivity d. lower thermal
conductivity
7. 0o is the freezing point of
water on
the _______ scale.. 300o is the mean global
temperature of the
earth on
the _______
scale. 212o is the boiling point of water on the
_______ scale.
a.
Calorie b.
Celsius c.
Fahrenheit d.
Kelvin
8. Which two of the following occur
during cloud formation?
a. condensation
b. deposition
c. evaporation d.
sublimation
9. Which of the following forms of energy
is released when clouds form?
a. specific heat
b. potential
energy c. latent
heat d. kinetic energy
10. Water vapor will often condense onto a cold
can of beverage when it is removed from the refrigerator. Will
this
act
to WARM or COOL the drink inside the can?
11. The warm rising air and the formation of
the cloud in the figure below illustrate which two energy transport
processes?
12. An electrical charge that is slowly moving
up and down will produce LONG SHORT wavelength,
LOW
HIGH frequency, and LOW HIGH energy
electromagnetic radiation.
13. Do the motions of the electrical charges in
the figure below mean the
electric field arrow is pointing UPWARD
pointing
DOWNWARD, or that the electric field is ZERO?
14. Energy must be added to a
substance to cause which of the following phase changes? (more than one
answer)
a.
sublimation b.
melting c.
evaporation d.
condensation
15. Points A and C on the wave of
electromagnetic radiation below are
0.5 1 1.5 2
wavelength(s) apart.
When Point D arrives
at the position
of the + charge, will the charge move UP DOWN
RIGHT
or LEFT?