Physics L2

In electromagnetism, ______ is a device that measures a small amount of current.

• Galvanometer

• Ammeter

• Voltmeter

• Magnetograph

What is an electric motor?

• It is a tool that uses electromagnetism to convert electrical energy into mechanical energy.

• It is a device that uses electromagnetism to move objects.

• It is a tool that produces electric potential energy to create a rotational motion.

• It is a device that uses electromagnetic induction to convert mechanical energy into electrical energy.

At which point of a magnet is the magnetic field the strongest?

• None. It is constant throughout all areas.

• Poles

• Middle

• North pole

In a magnetic compass, if the red needle points toward the South pole of a magnet, then the needle is a _____ pole.

The strength of the magnetic field (measured in Gauss) ______ as you move closer to the magnet.

• increases

• decreases

• stays the same

Like poles ______, opposite poles ______.

Based on the field lines, the two magnets are:

• Repelling

• Attracting

• Doing nothing

• Both attracting and repelling

If the magnet on the left is the North pole, then the magnet on the right is the ______ pole.

Based on the image, what can you infer about the direction of the magnetic field?

• It moves from north to south.

• It moves from south to north.

• It moves from both north to south and south to north.

• It moves from an outward source from the north pole.

What kind of material strongly attracts magnets? (ex. iron, cobalt, nickel)