Magnetism for This year

Which one of the following will not experience a force when placed in a magnetic field?

• piece of plastic

• iron nail

• paperclip

• steel spoon

What do the lines around this magnet represent?

• North Pole

• South Pole

• Magnetic Declination

• Magnetic Field

What is the unit of measurement for magnetic fields?

• Ampere

• Webber

• Tesla

• Henry

Which one of the following is correct about the images shown?

• Image A is caused by a single bar magnet

• Image B is caused by a horseshoe magnet and a bar magnet facing each other

• Image A is caused by two bar magnets with opposite poles facing each other

• Image B is caused by a horseshoe magnet

What will the magnets in the picture do?

• Attract

• Repel

• Neither attract nor repel

• Both attract and repel

How does the strength of a magnetic field relate to the density of magnetic field lines?

• Stronger fields have fewer lines.

• Magnetic field strength is unrelated to line density.

• Stronger fields have more crowded lines.

• Magnetic field lines are always evenly spaced

Magnetic fields are strongest _______.

• at the south pole

• at the north pole

• between the poles

• at both poles

What happens when you cut a bar magnet in half?

• You get one north pole and one south pole.

• You get two magnets, each with a north and south pole.

• You get no magnets.

• You get a stronger magnet.

What kind of magnet can be turned on and off?

• refridgerator magnet

• electromagnet

• magnetude

• iron

Who conducted the experiment that linked electricity and magnetism?

• Isaac Newton

• Albert Einstein

• Hans Christian Oersted

• Michael Faraday