Question
1. A balloon is rubbed against a sweater. Which of the following describes the result of this interaction?(1 point)
Responses
The fibers of the sweater lose electrons.
The fibers of the sweater lose electrons.
The outer shell electrons move from the balloon to the sweater.
The outer shell electrons move from the balloon to the sweater.
The balloon becomes positively charged.
The balloon becomes positively charged.
The free electrons in the balloon decreases.
The free electrons in the balloon decreases.
Question 2
2. A positive charge is 1 m to the left of a negative charge. The positive charge is then moved and placed 1 m to the right of the negative charge. What happens to the electrostatic force between the charges?(1 point)
Responses
The electrostatic force remains repulsive, and the magnitude does not change.
The electrostatic force remains repulsive, and the magnitude does not change.
The electrostatic force remains attractive, and the magnitude does not change.
The electrostatic force remains attractive, and the magnitude does not change.
The electrostatic force remains repulsive, but the magnitude changes.
The electrostatic force remains repulsive, but the magnitude changes.
The electrostatic force remains attractive, but the magnitude changes.
The electrostatic force remains attractive, but the magnitude changes.
Question 3
3. Two equal charges of magnitude 𝑞 are at a distance 𝑟 units apart. In which scenario will the electrostatic force between them remain the same?(1 point)
Responses
When 𝑞 is doubled and 𝑟 is quadrupled
When 𝑞 is doubled and 𝑟 is quadrupled
When 𝑞 is doubled and 𝑟 is doubled
When 𝑞 is doubled and 𝑟 is doubled
When 𝑞 is halved and 𝑟 is doubled
When 𝑞 is halved and 𝑟 is doubled
When 𝑞 is halved and 𝑟 is quadrupled
When 𝑞 is halved and 𝑟 is quadrupled
Question 4
4. When would force lines connect two charges?(1 point)
Responses
if the charges were both positive
if the charges were both positive
if the charges were neutral
if the charges were neutral
if the charges were opposite
if the charges were opposite
if the charges were both negative
if the charges were both negative
Question 5
5. What is the force on a 0.0020 C charge in an electric field of 150 V/m?(1 point)
Responses
7.5 x 105
N
7.5 x 105 N
150.002 N
150.002 N
1.3 x 10−5
N
1.3 x 10negative 5 N
0.30 N
0.30 N
Question 6
6. A circuit is constructed with a 20.0-V power supply and two resistors in series: R1
= 4.00 ohms, and R2
= 2.00 ohms. What is the resulting current in the circuit?(1 point)
Responses
27.0 A
27.0 A
120.0 A
120.0 A
15.0 A
15.0 A
3.33 A
3.33 A
Question 7
7. Which wire has the most resistance? Assume they are made of the same material.(1 point)
Responses
2 mm in cross-sectional area, 1 m long
2 mm in cross-sectional area, 1 m long
2 mm in cross-sectional area, 10 m long
2 mm in cross-sectional area, 10 m long
5 mm in cross-sectional area, 1 m long
5 mm in cross-sectional area, 1 m long
5 mm in cross-sectional area, 10 m long
5 mm in cross-sectional area, 10 m long
Question 8
8. Which wire has the least resistance?(1 point)
Responses
a long, thin wire
a long, thin wire
a short, thin wire
a short, thin wire
a long, thick wire
a long, thick wire
a short, thick wire
Responses
The fibers of the sweater lose electrons.
The fibers of the sweater lose electrons.
The outer shell electrons move from the balloon to the sweater.
The outer shell electrons move from the balloon to the sweater.
The balloon becomes positively charged.
The balloon becomes positively charged.
The free electrons in the balloon decreases.
The free electrons in the balloon decreases.
Question 2
2. A positive charge is 1 m to the left of a negative charge. The positive charge is then moved and placed 1 m to the right of the negative charge. What happens to the electrostatic force between the charges?(1 point)
Responses
The electrostatic force remains repulsive, and the magnitude does not change.
The electrostatic force remains repulsive, and the magnitude does not change.
The electrostatic force remains attractive, and the magnitude does not change.
The electrostatic force remains attractive, and the magnitude does not change.
The electrostatic force remains repulsive, but the magnitude changes.
The electrostatic force remains repulsive, but the magnitude changes.
The electrostatic force remains attractive, but the magnitude changes.
The electrostatic force remains attractive, but the magnitude changes.
Question 3
3. Two equal charges of magnitude 𝑞 are at a distance 𝑟 units apart. In which scenario will the electrostatic force between them remain the same?(1 point)
Responses
When 𝑞 is doubled and 𝑟 is quadrupled
When 𝑞 is doubled and 𝑟 is quadrupled
When 𝑞 is doubled and 𝑟 is doubled
When 𝑞 is doubled and 𝑟 is doubled
When 𝑞 is halved and 𝑟 is doubled
When 𝑞 is halved and 𝑟 is doubled
When 𝑞 is halved and 𝑟 is quadrupled
When 𝑞 is halved and 𝑟 is quadrupled
Question 4
4. When would force lines connect two charges?(1 point)
Responses
if the charges were both positive
if the charges were both positive
if the charges were neutral
if the charges were neutral
if the charges were opposite
if the charges were opposite
if the charges were both negative
if the charges were both negative
Question 5
5. What is the force on a 0.0020 C charge in an electric field of 150 V/m?(1 point)
Responses
7.5 x 105
N
7.5 x 105 N
150.002 N
150.002 N
1.3 x 10−5
N
1.3 x 10negative 5 N
0.30 N
0.30 N
Question 6
6. A circuit is constructed with a 20.0-V power supply and two resistors in series: R1
= 4.00 ohms, and R2
= 2.00 ohms. What is the resulting current in the circuit?(1 point)
Responses
27.0 A
27.0 A
120.0 A
120.0 A
15.0 A
15.0 A
3.33 A
3.33 A
Question 7
7. Which wire has the most resistance? Assume they are made of the same material.(1 point)
Responses
2 mm in cross-sectional area, 1 m long
2 mm in cross-sectional area, 1 m long
2 mm in cross-sectional area, 10 m long
2 mm in cross-sectional area, 10 m long
5 mm in cross-sectional area, 1 m long
5 mm in cross-sectional area, 1 m long
5 mm in cross-sectional area, 10 m long
5 mm in cross-sectional area, 10 m long
Question 8
8. Which wire has the least resistance?(1 point)
Responses
a long, thin wire
a long, thin wire
a short, thin wire
a short, thin wire
a long, thick wire
a long, thick wire
a short, thick wire
Answers
GPT-4o mini
Here are the correct answers for each question based on the principles of electrostatics and electricity:
1. **A balloon is rubbed against a sweater. Which of the following describes the result of this interaction?**
- **Response:** The fibers of the sweater lose electrons.
2. **A positive charge is 1 m to the left of a negative charge. The positive charge is then moved and placed 1 m to the right of the negative charge. What happens to the electrostatic force between the charges?**
- **Response:** The electrostatic force remains attractive, but the magnitude changes.
3. **Two equal charges of magnitude \( q \) are at a distance \( r \) units apart. In which scenario will the electrostatic force between them remain the same?**
- **Response:** When \( q \) is doubled and \( r \) is quadrupled.
4. **When would force lines connect two charges?**
- **Response:** If the charges were opposite.
5. **What is the force on a 0.0020 C charge in an electric field of 150 V/m?**
- To find the force, use the formula \( F = qE \).
- \( F = 0.0020 \, \text{C} \times 150 \, \text{V/m} = 0.30 \, \text{N} \).
- **Response:** 0.30 N
6. **A circuit is constructed with a 20.0-V power supply and two resistors in series: \( R_1 = 4.00 \, \Omega \), and \( R_2 = 2.00 \, \Omega \). What is the resulting current in the circuit?**
- Total resistance \( R = R_1 + R_2 = 4.00 \, \Omega + 2.00 \, \Omega = 6.00 \, \Omega \).
- Current \( I = \frac{V}{R} = \frac{20.0 \, \text{V}}{6.00 \, \Omega} \approx 3.33 \, \text{A} \).
- **Response:** 3.33 A
7. **Which wire has the most resistance? Assume they are made of the same material.**
- Resistance \( R \) is directly proportional to the length of the wire and inversely proportional to the cross-sectional area.
- **Response:** 2 mm in cross-sectional area, 10 m long (because it is longer).
8. **Which wire has the least resistance?**
- **Response:** A short, thick wire (because it has a large cross-sectional area and is short).
Feel free to ask if you have more questions or need further clarification!
1. **A balloon is rubbed against a sweater. Which of the following describes the result of this interaction?**
- **Response:** The fibers of the sweater lose electrons.
2. **A positive charge is 1 m to the left of a negative charge. The positive charge is then moved and placed 1 m to the right of the negative charge. What happens to the electrostatic force between the charges?**
- **Response:** The electrostatic force remains attractive, but the magnitude changes.
3. **Two equal charges of magnitude \( q \) are at a distance \( r \) units apart. In which scenario will the electrostatic force between them remain the same?**
- **Response:** When \( q \) is doubled and \( r \) is quadrupled.
4. **When would force lines connect two charges?**
- **Response:** If the charges were opposite.
5. **What is the force on a 0.0020 C charge in an electric field of 150 V/m?**
- To find the force, use the formula \( F = qE \).
- \( F = 0.0020 \, \text{C} \times 150 \, \text{V/m} = 0.30 \, \text{N} \).
- **Response:** 0.30 N
6. **A circuit is constructed with a 20.0-V power supply and two resistors in series: \( R_1 = 4.00 \, \Omega \), and \( R_2 = 2.00 \, \Omega \). What is the resulting current in the circuit?**
- Total resistance \( R = R_1 + R_2 = 4.00 \, \Omega + 2.00 \, \Omega = 6.00 \, \Omega \).
- Current \( I = \frac{V}{R} = \frac{20.0 \, \text{V}}{6.00 \, \Omega} \approx 3.33 \, \text{A} \).
- **Response:** 3.33 A
7. **Which wire has the most resistance? Assume they are made of the same material.**
- Resistance \( R \) is directly proportional to the length of the wire and inversely proportional to the cross-sectional area.
- **Response:** 2 mm in cross-sectional area, 10 m long (because it is longer).
8. **Which wire has the least resistance?**
- **Response:** A short, thick wire (because it has a large cross-sectional area and is short).
Feel free to ask if you have more questions or need further clarification!
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