Electromagnetism (Part 2)

Which of the following electromagnets will be stronger?

• Electromagnet one will have a stronger magnetic field.

• Electromagnet two will have a stronger magnetic field.

• Both electromagnets will have a magnetic field of the same strength.

• It is not possible to determine which electromagnet is stronger from the information given.

Tags

NGSS.MS-PS2-3

Action: Making coils farther apart

• 
• 

Action: Adding an iron core to a solenoid

• 
• 

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

Action: Decreasing the current

• 
• 

Tags

NGSS.MS-PS2-3

Action: Removing 2 coils

• 
• 

Which of the following can be done to increase the strength of a magnetic field in an electromagnet?

• increase current

• increase the number of coils

• decrease the distance between coils

• add a more ferromagnetic core

• Use copper wire coated in a thick insulating material

Tags

NGSS.MS-PS2-3

​ (a)   is the ability of magnetism and electricity to affect one another.

• Electromagnetism
• Gravitational Force
• Nuclear Fusion
• Thermodynamics

Tags

NGSS.MS-PS2-3

Oersted demonstrated which of the following? Choose all that are true.

• Magnetic fields are created when electric current passes through a wire.

• Magnetic field lines point perpendicular to the wire.

• Reversing the direction of electric current reverses the direction of the magnetic field lines.

Tags

NGSS.HS-PS2-5

A ​ (a)   and an electromagnet are both designs that use electric current to create a magnetic ​ (b)   .

• solenoid
• field
• wave
• resistor
• transformer

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-5

Which of the following are true about a solenoid and an electromagnet?

Choose all that are true.

• They are both are both designs that use electric current to create a magnetic field.

• The strength of the magnetic field made by these designs can be changed by adjusting current, the number of coils, and how far apart coils are.

• Electromagnets can also be strengthened by using a more magnetic material in the core.