Electromagnetic Force

Multiple Choice

Which of the following best describes what happens when two magnets are brought close to each other?

• They always attract each other.

• They always repel each other.

• They can either attract or repel each other depending on their orientation.

• They have no effect on each other.

Multiple Choice

Which type of magnet only acts like a magnet when within a strong magnetic field and loses its magnetism when the field disappears?

• Permanent magnet

• Temporary magnet

• Electromagnet

• Natural magnet

Multiple Choice

Which of the following statements about magnetic fields are correct?

• Magnetic fields can be represented by lines of force called magnetic field lines.

• Magnetic fields do not have directions.

• The closer together the lines are, the weaker the magnetic field is at that point.

• Magnetic fields are unrelated to magnetic force.

Fill in the Blanks

The places on a magnet that exert the strongest magnetic force are called the

.

Multiple Choice

What is the main difference between the north magnetic pole and the geographic North pole?

• They are located at the same place on Earth.

• The north magnetic pole moves, while the geographic North pole is fixed.

• The geographic North pole is stronger than the north magnetic pole.

• The north magnetic pole is only found in the Southern Hemisphere.

Fill in the Blanks

The force produced by the interaction of electric force and magnetic force is called

.

Multiple Select

Which of the following statements about solenoids and electromagnets are correct?

• A solenoid is a coil of wire carrying electric current

• Electromagnets are always permanent magnets

• Wrapping a coil around an iron core can make a stronger magnet

• Electromagnets require electric current to work

Multiple Choice

Which of the following best describes an electromagnet?

• A temporary magnet created by electric current in a wire or coil

• A permanent magnet made from iron

• A device that stores electrical energy

• A coil that produces light when current passes through

Fill in the Blanks

electricity refers to electric charges that are not moving.

Open Ended

What is the difference between static and current electricity?

Draw

Draw what the magnetic field around a bar magnet would look like. These are like pole towards each other.

Multiple Choice

Where is force the absolute strongest on a magnet?

• At the poles

• At the center

• Evenly distributed

• On the surface

Multiple Choice

What are the two main actions that magnets can perform when they interact with each other?

• Attract and repel

• Rotate and vibrate

• Expand and contract

• Heat and cool