Question

quiz: ees.3.2 - how water is an agent of energy transfer
name:
date:
block:
part i: multiple choice (5 questions)

1. what property of water allows it to absorb and store large amounts of energy?

a. density
b. hydrogen bonding
c. salinity
d. evaporation

1. which process absorbs heat energy from the environment?

a. condensation
b. freezing
c. evaporation
d. deposition

1. what is specific heat capacity?

a. the amount of salt in a solution
b. the amount of energy needed to raise the temperature of a substance by 1°c
c. the rate at which water evaporates
d. the amount of heat released during condensation

1. what percentage of earths surface is covered by oceans?

a. 50%
b. 60%
c. 70%
d. 80%

1. what drives surface ocean currents?

a. temperature and salinity
b. wind and the coriolis effect
c. earths rotation only
d. the gravitational pull of the moon
part ii: critical thinking multiple choice (5 questions)

1. why does coastal water keep nearby land cooler in summer and warmer in winter?

a. because water changes temperature more quickly than land
b. because water has a low specific heat capacity
c. because water absorbs and releases heat slowly
d. because the ocean reflects sunlight

1. why does ice floating on water help aquatic life survive in cold environments?

a. it blocks sunlight and lowers water temperature
b. it insulates the water below from freezing completely
c. it makes water denser
d. it allows gases to escape more easily

Explanation:

1. Question 1: Hydrogen bonding gives water a high specific heat capacity, allowing it to absorb and store large amounts of energy.
2. Question 2: Evaporation is an endothermic process that absorbs heat energy from the environment.
3. Question 3: Specific heat capacity is defined as the amount of energy needed to raise the temperature of a substance by \(1^{\circ}C\).
4. Question 4: Approximately 70% of Earth's surface is covered by oceans.
5. Question 5: Surface ocean currents are driven by wind and the Coriolis effect.
6. Question 6: Water has a high specific heat capacity, so it absorbs and releases heat slowly, moderating nearby land temperatures.
7. Question 7: Ice floating on water insulates the water below, preventing it from freezing completely and allowing aquatic life to survive.

Answer:

1. B. Hydrogen bonding
2. C. Evaporation
3. B. The amount of energy needed to raise the temperature of a substance by \(1^{\circ}C\)
4. C. 70%
5. B. Wind and the Coriolis effect
6. C. Because water absorbs and releases heat slowly
7. B. It insulates the water below from freezing completely