Untitled Presentation

Reorder

Rank the objects from STRONGEST magnetic field to WEAKEST magnetic field.

• Electromagnet with 3 batteries and 5 loops

• Solenoid with 1 battery and 5 loops

• Electromagnet with 1 battery and 5 loops

• Electromagnet with no current and 1 loop

1

2

3

4

• 1
• 2
• 3
• 4

Multiple Choice

According to the diagram, where do the magnetic field lines emerge and enter in a horseshoe magnet?

• Emerge from the South pole and enter the North pole

• Emerge and enter at the same pole

• Emerge from the North pole and enter the South pole

• Emerge and enter outside the magnet

Multiple Choice

What is demonstrated in the video about magnetic fields?

• The effect of magnetic fields on iron fillings

• The history of magnetism

• How to create a magnetic field

• The uses of magnets in technology

Multiple Choice

What is the primary function of Earth's Magnetic Field?

• To create weather patterns

• To protect Earth from harmful radiation

• To generate electricity

• To support plant growth

Multiple Choice

If I had a 1 meter long magnet, and cut a 1 centimeter tip of the North Pole part of the magnet. What pole or poles would this 1 centimeter magnet have after it was cut?

• Only a North Pole

• Only a South Pole

• Both a North and South Pole

• Nothing

Multiple Choice

Which of the following combination(s) of poles will have a repulsive force when brought near each other?

• North and North

• North and South

• South and South

• North and West

Multiple Choice

If a magnetic field is pointed toward a pole, which pole will it be pointed towards?

• North

• South

• North and South

• West

Multiple Choice

Which of the following would have the weakest magnetic field?

• Earth's magnetic field

• a classroom permanent magnet

• an electromagnet made of 20 coils of wire carrying 0.5 A around an iron core

Multiple Choice

A student placed a compass above a wire in a circuit. Here is the diagram of what happened.

Which of the following claims is supported by the evidence in the diagram?

• An electric current produces a magnetic field.

• A magnetic field produces an electric current.

• An electric current flows from a negative to a positive terminal.

• A magnetic field extends from a north pole of a magnet to its south pole.

Multiple Choice

What will you see if the magnetic field is into the screen (paper)?

• The front of the arrow

• The back of the arrow

• No change

• A different color

Multiple Choice

Looking at the diagram to the right, which way is the Current (Black) going?

• Into the screen (paper)

• Out of the screen (paper)

• To the left

• To the right

Multiple Choice

Looking at the diagram to the right, which way is the Magnetic Field (red) going?

• Clockwise

• Counter Clockwise

• In and out of the page (screen)

• To the right

Multiple Choice

Looking at the diagram to the right, which way is the Magnetic Field (Red) going?

• Clockwise

• Counter Clockwise

• In and out of the page (screen)

• To the right

Multiple Choice

The voltmeter is at 0 in this image. How would you manipulate the experiment to create electricity (measured in volts)?

• Flip the magnet around so the North pole is facing out
• Move the magnet back and forth
• Take the magnet out
• Add more coils around the paper cylinder

Multiple Choice

What does the thumb represent in the Right-Hand Grip Rule for a current-carrying loop?

• Direction of the magnetic field

• Direction of the current

• Direction of the loop

• Direction of the fingers

Multiple Choice

Looking at the diagram to the right, which way is the Magnetic Field going inside the loop?

• Into the screen (paper)

• Out of the screen (paper)

• To the left

• To the right

Multiple Choice

Looking at the diagram to the right, which way is the Magnetic Field going outside the loop?

• Into the screen (paper)

• Out of the screen (paper)

• To the left

• To the right

Multiple Choice

Looking at the diagram to the right, which way is the Magnetic Field going above the arrow?

• Into the screen (paper)

• Out of the screen (paper)

• To the left

• To the right

Poll

How confident do you feel about this topic now?

• Very confident
• Somewhat confident
• Not confident