It looks like you've uploaded a worksheet titled
"Learn About Force: Friction" that includes questions and illustrations related to the concept of friction. Since I can't view images directly, I'll help you solve the problems based on the text and descriptions you've provided.
Let’s go through each question one by one and explain the answers:
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Question 1:
> The taxi driver has to be more careful when driving in winter because the road is more slippery than when it is summer. That means the friction on the road during winter is...
Options:
A) more than
B) less than
C) the same as
✔ Correct Answer: B) less than
Explanation:
In winter, roads are often icy or wet, which reduces the grip between the tires and the road surface. This reduction in grip means
less friction. Less friction makes it harder for the car to stop or turn safely, so drivers must be more careful.
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Question 2:
> A soccer player finds that the ball rolls farther when the grass is short than when the grass is long. This means that...
Options:
A) there is more friction when the grass is short
B) there is less friction when the grass is short
C) it doesn’t matter if the grass is short or long
✔ Correct Answer: B) there is less friction when the grass is short
Explanation:
Short grass provides a smoother surface with fewer obstacles (like long blades), so the ball encounters
less resistance (friction). This allows the ball to roll farther. Long grass creates more friction, slowing the ball down faster.
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Question 3:
> One mouse pushed her cart on the tile floor and it went fast and easy. When she pushed the cart on the carpet, the cart moved slowly. This means that...
Options:
A) there is more friction on the carpet than on the tile
B) you need more force to push the cart when it's on the carpet
C) you need more force to push the cart when it's on the tile
✔ Correct Answer: A) there is more friction on the carpet than on the tile
Explanation:
Carpet has a rougher surface than tile, so it creates
more friction, making it harder for the cart to move. Tile is smooth, so
less friction allows the cart to move easily. Therefore, more force is needed on the carpet — but the best answer here is
A, as it directly explains why the cart moves slower.
Note: Option B is also true, but
A is the most direct explanation based on the observation.
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Question 4:
> Write down 3 more examples of two surfaces rubbing together.
Sample: Tire on road
✔ Possible Answers:
1. Shoes on pavement
2. Pencil on paper
3. Brakes on bike wheel
4. Hands when rubbing together
5. Ski on snow
6. Book on table
These are all examples of
two surfaces in contact that experience friction when they rub against each other.
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✔ Final Summary of Answers:
1.
B) less than
2.
B) there is less friction when the grass is short
3.
A) there is more friction on the carpet than on the tile
4. Examples:
- Shoes on pavement
- Pencil on paper
- Brakes on bike wheel
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Parent Tip: Review the logic above to help your child master the concept of friction force worksheet.