Question
11. A nail can be magnetized when it comes into contact with a permanent magnet because its domains become aligned.
True
False
12. An ordinary steel bolt can be turned into a magnet.
True
False
13. How could you increase the strength of your electromagnet? (Select all that apply)
a
Increase the number of coils
b
Decrease the current flowing through the coils
c
Increase the current flowing through the coils
d
Decrease the number of coils
14. What is the unit for force?
a
Meters
b
Seconds
c
Joules
d
Newtons
15. In the equation for Coulomb's Law, q can have a negative value only.
True
False
16. If the value of F is positive, this tells us that the two objects are:
a
this doesn't give us any information about the objects
b
attracted to one another
c
repelled by one another
17. The source of all magnetism is:
a
moving electric charges
b
tiny pieces of iron
c
ferromagnetic material
d
tiny domains of aligned atoms
18. Every magnet, regardless of its shape, has two
a
magnetic needles
b
magnetic poles
c
magnetic charges
d
magnetic fields
True
False
12. An ordinary steel bolt can be turned into a magnet.
True
False
13. How could you increase the strength of your electromagnet? (Select all that apply)
a
Increase the number of coils
b
Decrease the current flowing through the coils
c
Increase the current flowing through the coils
d
Decrease the number of coils
14. What is the unit for force?
a
Meters
b
Seconds
c
Joules
d
Newtons
15. In the equation for Coulomb's Law, q can have a negative value only.
True
False
16. If the value of F is positive, this tells us that the two objects are:
a
this doesn't give us any information about the objects
b
attracted to one another
c
repelled by one another
17. The source of all magnetism is:
a
moving electric charges
b
tiny pieces of iron
c
ferromagnetic material
d
tiny domains of aligned atoms
18. Every magnet, regardless of its shape, has two
a
magnetic needles
b
magnetic poles
c
magnetic charges
d
magnetic fields
Answers
GPT-4o mini
Here are the answers to your questions:
11. **True** - A nail can be magnetized by coming into contact with a permanent magnet, causing its magnetic domains to align.
12. **True** - An ordinary steel bolt can be turned into a magnet through methods such as rubbing it with a magnet or placing it in a magnetic field.
13. Select all that apply:
- **a** Increase the number of coils
- **c** Increase the current flowing through the coils
14. **d** Newtons - The unit of force is Newtons.
15. **False** - In the equation for Coulomb's Law, q can have both positive and negative values, representing positive and negative charges.
16. **c** repelled by one another - If the value of F (force) is positive, it indicates that the two objects are repelling each other.
17. **a** moving electric charges - The source of all magnetism is moving electric charges.
18. **b** magnetic poles - Every magnet, regardless of its shape, has two magnetic poles (north and south).
11. **True** - A nail can be magnetized by coming into contact with a permanent magnet, causing its magnetic domains to align.
12. **True** - An ordinary steel bolt can be turned into a magnet through methods such as rubbing it with a magnet or placing it in a magnetic field.
13. Select all that apply:
- **a** Increase the number of coils
- **c** Increase the current flowing through the coils
14. **d** Newtons - The unit of force is Newtons.
15. **False** - In the equation for Coulomb's Law, q can have both positive and negative values, representing positive and negative charges.
16. **c** repelled by one another - If the value of F (force) is positive, it indicates that the two objects are repelling each other.
17. **a** moving electric charges - The source of all magnetism is moving electric charges.
18. **b** magnetic poles - Every magnet, regardless of its shape, has two magnetic poles (north and south).