Question
Stimulus
A student notices that their doorbell is quieter than usual.
For decades, doorbells have used electromagnetism to work. However, electromagnetic doorbells are becoming less and less common and are being replaced with digital doorbells. You are going to look at how doorbells worked before the digital world (think 5-10 years ago, not 50-60 years ago).
Figure 1 - Image of Doorbell System
In this diagram, the doorbell button works like a switch, opening and closing the circuit.
Your Task
In the questions that follow, you will investigate what affects the strength of the electric and magnetic forces and use data to justify your explanation.
Question 1
Based on the information in Figure 1, choose the options to correctly complete the sentence.
(2 points)
When the doorbell button is pressed, there is a direct connection between the power source and the electromagnet. When the doorbell button is released, that connection is broken. Therefore, when the doorbell button is pressed, the electromagnet is
. When the doorbell button is released, the electromagnet is
.
Question 2
Question 2
A student moves into a new house and notices that their doorbell is quieter than most. They decide to investigate. They know that the doorbell uses electromagnetism to work, but they want to know what factors affect the strength of an electromagnet. Select the three answers that would affect the strength of an electromagnet.
(3 points)
Responses
a. The amount that the electromagnet costs
a. The amount that the electromagnet costs
b. The amount of wire wrapped around the rod
b. The amount of wire wrapped around the rod
c. The amount of electricity running through the wire
c. The amount of electricity running through the wire
d. The material the core is made of
d. The material the core is made of
e. The age of the rod
e. The age of the rod
Question 3
Question 3
Use the simulator to complete the table. This question tests the variable of number of coils used.
Feel free to play around with the simulator to see how it works. Please note that you must drag the rod into the paper clips.
Make sure to click on “Enable Data Logger” to see your collected lab data.
Set the no. of batteries to 3.
For each trial, you will increase the number of coils.
When you are done with each trial, you will click 'Reset Setup' to increase the number of coils and test again.
Select 'Enable Data Logger' you will see a data table.
Trial 1: 3 coils
Trial 2: 5 coils
Trial 3: 9 coils
(3 points)
Trial Number of paper clips attracted Number of batteries Battery level Number of coils Material type Size of rod
1
3 Full 3 Iron L
2
3 Full 5 Iron L
3
3 Full 9 Iron L
Question 4
Question 4
Use the data table from Question 3 to complete the sentence.
(2 points)
To create a stronger magnetic force I need to add
coils as shown in trial
because it holds more paper clips.
Question 5
Question 5
Complete the table.
This question will use the variable of the rod material and size.
Slide the number of batteries to 5.
Keep the batteries fully charged.
Trial 4: Change the material of rod to plastic.
Trial 5: Change the size of the rod to small.
Trial 6: Change the material of rod to iron. Change the size of the rod to large.
Trial 7: Change the size of the rod to small.
(4 points)
Trial # Number of paper clips attached Number of batteries Battery level Number of coils Material type Size of rod
4
5 F 3 Plastic L
5
5 F 3 Plastic S
6
5 F 3 Iron L
7
5 F 3 Iron S
Question 6
Question 6
Complete the following statement by choosing the correct choices:
(2 points)
To create a stronger magnetic force I need to make the rod out of
that is
as shown in the trials because it holds more paper clips.
Question 7
Question 7
Complete the table. In this question, you are testing the variable of the number of batteries and battery charge.
Return the size of rod to Large.
Slide the number of coils to 9.
Slide the number of batteries to 3.
Trial 8: Slide the number of batteries to 3.
Trial 9: Slide the number of batteries to 5.
Trial 10: Change the Battery level to low.
Trial 11: Change the Battery level to high.
(4 points)
Trial # Number of paper clips attracted Number of batteries Battery level Number of coils Material type Size of rod
8
3 F 9 Iron L
9
5 F 9 Iron L
10
5 L 9 Iron L
11
5 F 9 Iron L
Question 8
Question 8
Complete the following statement by choosing the correct choices:
(3 points)
To create a stronger magnetic force I need to add
batteries that are
charge as shown in trials
because it holds the most paper clips.
Question 9
Question 9
Based on the data collected from the previous, which of the following changes made the weakest electromagnet?
(1 point)
Responses
a. Using a plastic core instead of an iron core
a. Using a plastic core instead of an iron core
b. Using 3 batteries instead of 5
b. Using 3 batteries instead of 5
c. Using a small core instead of a large core
c. Using a small core instead of a large core
d. Use 3 coils instead of 9
d. Use 3 coils instead of 9
Question 10
Question 10
Use the data in your tables to correctly complete the statement.
(2 points)
The strongest electromagnet in the simulation could pick up
paper clips. The strongest electromagnet had
coils, was made of
and had
batteries that were
.
Question 11
Question 11
Once the student understands electromagnetism, they decide to take apart their doorbell to see if they can figure out why it’s so quiet. Figure 2 below shows their doorbell’s electromagnet on the left and an image of a normal (loud) doorbell’s electromagnet on the right.
Figure 2 - Comparing Doorbells
In one sentence, why do you think the student's doorbell is not as loud as a normal doorbell?
(1 point)
0 / 10000 Word Limit
Question 12
Question 12
Which trial would you use to support your explanation in Question 11?
(1 point)
Responses
Trial 1
Trial 1
Trial 3
Trial 3
Trial 5
Trial 5
Trial 7
Trial 7
Trial 9
Trial 9
Trial 11
A student notices that their doorbell is quieter than usual.
For decades, doorbells have used electromagnetism to work. However, electromagnetic doorbells are becoming less and less common and are being replaced with digital doorbells. You are going to look at how doorbells worked before the digital world (think 5-10 years ago, not 50-60 years ago).
Figure 1 - Image of Doorbell System
In this diagram, the doorbell button works like a switch, opening and closing the circuit.
Your Task
In the questions that follow, you will investigate what affects the strength of the electric and magnetic forces and use data to justify your explanation.
Question 1
Based on the information in Figure 1, choose the options to correctly complete the sentence.
(2 points)
When the doorbell button is pressed, there is a direct connection between the power source and the electromagnet. When the doorbell button is released, that connection is broken. Therefore, when the doorbell button is pressed, the electromagnet is
. When the doorbell button is released, the electromagnet is
.
Question 2
Question 2
A student moves into a new house and notices that their doorbell is quieter than most. They decide to investigate. They know that the doorbell uses electromagnetism to work, but they want to know what factors affect the strength of an electromagnet. Select the three answers that would affect the strength of an electromagnet.
(3 points)
Responses
a. The amount that the electromagnet costs
a. The amount that the electromagnet costs
b. The amount of wire wrapped around the rod
b. The amount of wire wrapped around the rod
c. The amount of electricity running through the wire
c. The amount of electricity running through the wire
d. The material the core is made of
d. The material the core is made of
e. The age of the rod
e. The age of the rod
Question 3
Question 3
Use the simulator to complete the table. This question tests the variable of number of coils used.
Feel free to play around with the simulator to see how it works. Please note that you must drag the rod into the paper clips.
Make sure to click on “Enable Data Logger” to see your collected lab data.
Set the no. of batteries to 3.
For each trial, you will increase the number of coils.
When you are done with each trial, you will click 'Reset Setup' to increase the number of coils and test again.
Select 'Enable Data Logger' you will see a data table.
Trial 1: 3 coils
Trial 2: 5 coils
Trial 3: 9 coils
(3 points)
Trial Number of paper clips attracted Number of batteries Battery level Number of coils Material type Size of rod
1
3 Full 3 Iron L
2
3 Full 5 Iron L
3
3 Full 9 Iron L
Question 4
Question 4
Use the data table from Question 3 to complete the sentence.
(2 points)
To create a stronger magnetic force I need to add
coils as shown in trial
because it holds more paper clips.
Question 5
Question 5
Complete the table.
This question will use the variable of the rod material and size.
Slide the number of batteries to 5.
Keep the batteries fully charged.
Trial 4: Change the material of rod to plastic.
Trial 5: Change the size of the rod to small.
Trial 6: Change the material of rod to iron. Change the size of the rod to large.
Trial 7: Change the size of the rod to small.
(4 points)
Trial # Number of paper clips attached Number of batteries Battery level Number of coils Material type Size of rod
4
5 F 3 Plastic L
5
5 F 3 Plastic S
6
5 F 3 Iron L
7
5 F 3 Iron S
Question 6
Question 6
Complete the following statement by choosing the correct choices:
(2 points)
To create a stronger magnetic force I need to make the rod out of
that is
as shown in the trials because it holds more paper clips.
Question 7
Question 7
Complete the table. In this question, you are testing the variable of the number of batteries and battery charge.
Return the size of rod to Large.
Slide the number of coils to 9.
Slide the number of batteries to 3.
Trial 8: Slide the number of batteries to 3.
Trial 9: Slide the number of batteries to 5.
Trial 10: Change the Battery level to low.
Trial 11: Change the Battery level to high.
(4 points)
Trial # Number of paper clips attracted Number of batteries Battery level Number of coils Material type Size of rod
8
3 F 9 Iron L
9
5 F 9 Iron L
10
5 L 9 Iron L
11
5 F 9 Iron L
Question 8
Question 8
Complete the following statement by choosing the correct choices:
(3 points)
To create a stronger magnetic force I need to add
batteries that are
charge as shown in trials
because it holds the most paper clips.
Question 9
Question 9
Based on the data collected from the previous, which of the following changes made the weakest electromagnet?
(1 point)
Responses
a. Using a plastic core instead of an iron core
a. Using a plastic core instead of an iron core
b. Using 3 batteries instead of 5
b. Using 3 batteries instead of 5
c. Using a small core instead of a large core
c. Using a small core instead of a large core
d. Use 3 coils instead of 9
d. Use 3 coils instead of 9
Question 10
Question 10
Use the data in your tables to correctly complete the statement.
(2 points)
The strongest electromagnet in the simulation could pick up
paper clips. The strongest electromagnet had
coils, was made of
and had
batteries that were
.
Question 11
Question 11
Once the student understands electromagnetism, they decide to take apart their doorbell to see if they can figure out why it’s so quiet. Figure 2 below shows their doorbell’s electromagnet on the left and an image of a normal (loud) doorbell’s electromagnet on the right.
Figure 2 - Comparing Doorbells
In one sentence, why do you think the student's doorbell is not as loud as a normal doorbell?
(1 point)
0 / 10000 Word Limit
Question 12
Question 12
Which trial would you use to support your explanation in Question 11?
(1 point)
Responses
Trial 1
Trial 1
Trial 3
Trial 3
Trial 5
Trial 5
Trial 7
Trial 7
Trial 9
Trial 9
Trial 11
Answers
Answered by
GPT-4o mini
Here are the responses to your questions based on the information provided:
**Question 1:**
When the doorbell button is pressed, the electromagnet is **on**. When the doorbell button is released, the electromagnet is **off**.
**Question 2:**
The three answers that would affect the strength of an electromagnet are:
- **b. The amount of wire wrapped around the rod**
- **c. The amount of electricity running through the wire**
- **d. The material the core is made of**
**Question 3:**
| Trial | Number of paper clips attracted | Number of batteries | Battery level | Number of coils | Material type | Size of rod |
|-------|-------------------------------|---------------------|---------------|-----------------|----------------|--------------|
| 1 | 3 | 3 | Full | 3 | Iron | L |
| 2 | 3 | 5 | Full | 5 | Iron | L |
| 3 | 3 | 9 | Full | 9 | Iron | L |
**Question 4:**
To create a stronger magnetic force I need to add **more** coils as shown in trial **3** because it holds more paper clips.
**Question 5:**
| Trial # | Number of paper clips attached | Number of batteries | Battery level | Number of coils | Material type | Size of rod |
|---------|-------------------------------|---------------------|---------------|-----------------|----------------|--------------|
| 4 | 5 | 5 | Full | 3 | Plastic | L |
| 5 | 5 | 5 | Full | 3 | Plastic | S |
| 6 | 5 | 5 | Full | 3 | Iron | L |
| 7 | 5 | 5 | Full | 3 | Iron | S |
**Question 6:**
To create a stronger magnetic force I need to make the rod out of **iron** that is **large** as shown in the trials because it holds more paper clips.
**Question 7:**
| Trial # | Number of paper clips attracted | Number of batteries | Battery level | Number of coils | Material type | Size of rod |
|---------|-------------------------------|---------------------|---------------|-----------------|----------------|--------------|
| 8 | 3 | 3 | Full | 9 | Iron | L |
| 9 | 5 | 5 | Full | 9 | Iron | L |
| 10 | 5 | 3 | Low | 9 | Iron | L |
| 11 | 5 | 5 | Full | 9 | Iron | L |
**Question 8:**
To create a stronger magnetic force I need to add **more** batteries that are **full** charge as shown in trials **9** because it holds the most paper clips.
**Question 9:**
Based on the data collected from the previous, the change that made the weakest electromagnet was:
- **a. Using a plastic core instead of an iron core**
**Question 10:**
The strongest electromagnet in the simulation could pick up **5** paper clips. The strongest electromagnet had **9** coils, was made of **iron**, and had **5** batteries that were **full**.
**Question 11:**
The student's doorbell is not as loud as a normal doorbell because it likely has fewer coils or uses a less efficient core material, resulting in weaker electromagnetic force.
**Question 12:**
The trial I would use to support my explanation in Question 11 is:
- **Trial 4**
Feel free to ask if you have any more questions or need further clarification!
**Question 1:**
When the doorbell button is pressed, the electromagnet is **on**. When the doorbell button is released, the electromagnet is **off**.
**Question 2:**
The three answers that would affect the strength of an electromagnet are:
- **b. The amount of wire wrapped around the rod**
- **c. The amount of electricity running through the wire**
- **d. The material the core is made of**
**Question 3:**
| Trial | Number of paper clips attracted | Number of batteries | Battery level | Number of coils | Material type | Size of rod |
|-------|-------------------------------|---------------------|---------------|-----------------|----------------|--------------|
| 1 | 3 | 3 | Full | 3 | Iron | L |
| 2 | 3 | 5 | Full | 5 | Iron | L |
| 3 | 3 | 9 | Full | 9 | Iron | L |
**Question 4:**
To create a stronger magnetic force I need to add **more** coils as shown in trial **3** because it holds more paper clips.
**Question 5:**
| Trial # | Number of paper clips attached | Number of batteries | Battery level | Number of coils | Material type | Size of rod |
|---------|-------------------------------|---------------------|---------------|-----------------|----------------|--------------|
| 4 | 5 | 5 | Full | 3 | Plastic | L |
| 5 | 5 | 5 | Full | 3 | Plastic | S |
| 6 | 5 | 5 | Full | 3 | Iron | L |
| 7 | 5 | 5 | Full | 3 | Iron | S |
**Question 6:**
To create a stronger magnetic force I need to make the rod out of **iron** that is **large** as shown in the trials because it holds more paper clips.
**Question 7:**
| Trial # | Number of paper clips attracted | Number of batteries | Battery level | Number of coils | Material type | Size of rod |
|---------|-------------------------------|---------------------|---------------|-----------------|----------------|--------------|
| 8 | 3 | 3 | Full | 9 | Iron | L |
| 9 | 5 | 5 | Full | 9 | Iron | L |
| 10 | 5 | 3 | Low | 9 | Iron | L |
| 11 | 5 | 5 | Full | 9 | Iron | L |
**Question 8:**
To create a stronger magnetic force I need to add **more** batteries that are **full** charge as shown in trials **9** because it holds the most paper clips.
**Question 9:**
Based on the data collected from the previous, the change that made the weakest electromagnet was:
- **a. Using a plastic core instead of an iron core**
**Question 10:**
The strongest electromagnet in the simulation could pick up **5** paper clips. The strongest electromagnet had **9** coils, was made of **iron**, and had **5** batteries that were **full**.
**Question 11:**
The student's doorbell is not as loud as a normal doorbell because it likely has fewer coils or uses a less efficient core material, resulting in weaker electromagnetic force.
**Question 12:**
The trial I would use to support my explanation in Question 11 is:
- **Trial 4**
Feel free to ask if you have any more questions or need further clarification!
There are no human answers yet. A form for humans to post answers is coming very soon!