Solenoids and Electromagnets

Which of the following depicts a solenoid?

• 
• 
• 
• 

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-5

How would you compare the magnetic field generated by a simple length of wire to the magnetic field generated by a coil of wire?

• The coil generates a stronger magnetic filed

• The coil generates a weaker magnetic field

• The field generated by the coil has different polarity than the field generated by the length of wire

• The coil generates a field that attracts iron objects; the length of wire generates a field that attracts silver objects.

Tags

NGSS.HS-PS2-5

Where does a magnetic field occur in relation to an electrified wire?

• At either end, but not in the middle

• Only on the side closes to source of electricity

• Around the entire length of the wire

• Only on the side furthest from the source of electricity

Tags

NGSS.HS-PS2-5

What is the simplest requirement for an electromagnet

• A coil of electrified wire

• A coil of electrified wire wrapped around an iron core

• A bar magnet and a power source

• length of electrified wire

Tags

NGSS.HS-PS2-5

Why are paperclips attracted to magnets

• They contain silver

• They contain aluminum

• They contain tin

• They contain iron

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

To change the polarity of a magnet, you would...

• Reverse the current's direction

• Reverse the direction in which the coil is wound

• Turn the battery, or other power source, upside-down

• Remove the iron core from within the coil of wire

Tags

NGSS.HS-PS2-5

A(n) __________ is a device that has a magnetized needle that can spin freely.

• Compass
• Magnetic Field

magnetic field

• the space around a magnet in which magnetic forces can act on objects
• to separate or set apart
• one of the two opposite ends of a magnet
• to provide evidence that goes against a claim

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-5

1) A wire carries a current, creating a magnetic field around itself as shown. The current in the wire is:

• A. Directed to the right

• A. Directed to the left

• A. Equal to the magnetic field

• In the same direction as the magnetic field

Tags

NGSS.HS-PS2-5

1) The magnetic field inside the coil shown below is directed:

• Into the page

• Out the Page

• To the left

• Towards the bottom of the page

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-5