Frosh PhySci - Evaporation quiz

Question 0

F -

Explain why evaporation occurs

Answer 0

Liquid particles at exposed surface absorb just enough energy to overcome attraction. If moving in the right direction, they will pull away from the liquid and move into the air.

Question 1

F -

What is evaporation?

Answer 1

Process of a liquid changing into a gas without becoming hot enough to boil.

Question 2

F - 
Which process causes a mud puddle to dry up in the sunshine?
a- boiling
b- vaporization
c- evaporation
d- condensation

Answer 2

C- evaporation

Question 3

Factors that affect the rate of evaporation include the 
a- exposed surface area of the liquid
b- temperature of the liquid
c- air movement above the liquid
d- all of the above

Answer 3

D- All of the above

Question 4

T/F Clothes on a clothesline will dry more quickly if the air is dry

Answer 4

True

Question 5

T/F Salt water evaporates more quickly than pure water

Answer 5

False

Question 6

The process that explains why sweat cools you down is called __________ cooling..

Answer 6

Evaporative

Question 7

Water based latex paint dries as some of the water it contains evaporates. How could you speed up the drying time of latex paint?

Answer 7

Increased heat

Blowing air across the surface

Question 8

Assume you have two identical containers with the same amount of water in each one.
You heat one container to a boil. The other container is kept at room temperature.
In which container will the water disappear first? Explain your answer

Answer 8

Boiling container will have water disappear first.

More energy absorbed by boiling. Room temp container only has surface water particles gaining energy.

Question 9

F -

For a liquid to evaporate, particles of the liquid must _________ energy.

Answer 9

Gain/Absorb