Physical Weathering Quick Check
1 of 51 of 5 Items
Question
Abrasion occurs due to _____.(1 point)
Responses
friction
friction
plants and animals
plants and animals
daily temperature changes
daily temperature changes
seasonal temperature changes
seasonal temperature changes
Skip to navigation
page 15 of 15
Abrasion occurs due to friction.
Abrasion occurs due to friction.
To answer this question, we need to understand what abrasion is. Abrasion refers to the process of rocks and other materials being worn down and broken apart by the action of other rocks, sediment, or particles rubbing against them.
Out of the given options, the correct answer is "friction." Friction is the force that occurs when two objects rub against each other, causing resistance and wear. In the context of abrasion, it is the friction between rocks or particles that leads to the wearing down and breaking apart of materials.
To further support this answer, we can eliminate the other options:
- Plants and animals: While organisms may contribute to mechanical weathering through their activities, such as plant roots growing into cracks and expanding, the term "abrasion" specifically refers to the physical wearing down by friction.
- Daily temperature changes: While temperature changes can contribute to weathering processes, such as expansion and contraction of rocks, they are not directly related to abrasion. Temperature changes do not involve the rubbing or grinding action that characterizes abrasion.
- Seasonal temperature changes: Similar to daily temperature changes, seasonal temperature variations do not directly cause abrasion. They may contribute to weathering in other ways, but they are not the main factor in abrasion.
Therefore, the correct answer is "friction" as it is the force that leads to abrasion by rubbing and grinding materials against each other.
Physical Weathering Quick Check
2 of 52 of 5 Items
Question
Which describes a characteristic of water that is responsible for frost wedging?(1 point)
Responses
Water evaporates as it is heated.
Water evaporates as it is heated.
Water condenses as it is heated.
Water condenses as it is heated.
Water expands as it freezes.
Water expands as it freezes.
Water contracts as it freezes.
Water contracts as it freezes.
Skip to navigation
page 15 of 15
Water expands as it freezes.
Physical Weathering Quick Check
3 of 53 of 5 Items
Question
A student wants to model the physical weathering of rock. Which activity could the student perform?(1 point)
Responses
Place a paper boat in a ditch, and then use water from a hose to make it sail away.
Place a paper boat in a ditch, and then use water from a hose to make it sail away.
Place drops of acid on chalk, and then observe the chemical reaction.
Place drops of acid on chalk, and then observe the chemical reaction.
Place several cookies in a box, and then shake the box.
Place several cookies in a box, and then shake the box.
Place ice cream in a bowl, and then watch it melt.
Place ice cream in a bowl, and then watch it melt.
Skip to navigation
page 15 of 15
The student could perform the activity of placing several cookies in a box and then shaking the box.
Physical Weathering Quick Check
4 of 54 of 5 Items
Question
How can moving water contribute to physical weathering?(1 point)
Responses
It can cause the formation of new minerals in rocks.
It can cause the formation of new minerals in rocks.
It can make rocks expand and contract.
It can make rocks expand and contract.
It can cause rocks to bump against each other.
It can cause rocks to bump against each other.
It can transport rocks to different locations.
Moving water can cause rocks to bump against each other, resulting in physical weathering.
Physical Weathering Quick Check
5 of 55 of 5 Items
Question
The peeling off of outer layers of rock due to temperature changes is called _____.(1 point)
Responses
abrasion
abrasion
burrowing
burrowing
exfoliation
exfoliation
frost wedging
frost wedging
Skip to navigation
page 15 of 15