What does a magnetic field look like?

A series of white dotted lines.

A clear piece of plastic or glass.

Why are the magnetic domains of this paperclip lined up?

Because the paperclip has been exposed to a magnetic field.

Because the paperclip has acquired static shock.

Because the paperclip is a type of electromagnet.

Because paperclips are permeant magnets.

How can you create a magnetic field?

By running a current through a wire.

By plugging a refrigerator magnet into an electric socket.

By rubbing a piece of glass against a piece of wool.

Which of the following statements is true?

A compass is affected by the earth's magnetic field.

An object's magnetic field gets weaker as you move closer to it.

The earth's magnetic north pole is located at the geographical north pole.

Once a piece of metal becomes magnetized, it stays magnetized.

What is the simplest requirement for an electromagnet?

A coil of electrified wire wrapped around an iron core.

Where does the magnetic field occur in relation to an electric wire?

At either end, but not in the middle.

Only on the side closest to the energy source.

Only on the side furthest from the source of electricity.

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

The coil generates a stronger magnetic field.

The coil generates a weaker magnetic field.

The field generated by the coil has a 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.

To change the polarity of an electromagnet, you would...

reverse the currents 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.

Two electromagnets contain the same types of magnets and wires. But the magnet in the first moves much faster than the second. Therefore...

the first electromagnet has a more powerful current than the second.

the first electromagnet has a less powerful current than the second.

the currents in the two electromagnets run in opposite directions.

the current in the first electromagnet moves faster than the current in the second electromagnet.

The students wrap more wire around the spoon to see if the strength of the magnetic force increased. Which of the following observations would indicate that wrapping more wire has increased the strength of the electromagnet?

The spoon nop picks up 7 paper clips.

More ware was needed to wrap around the spoon.

Eventually the pattery runs out of energy.

The ends of the wire must touch the battery's poles.

MS-PS2-B.1: Electromagnetic Forces

Authored by Danielle Wright

Science

6th - 7th Grade

Used 21+ times

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MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A push or pull.

force

work

energy

field

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Forces that act across a distance.

force

work

energy

field

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A directional flow of electrical charge through an object or medium.

current

electric force

magnitude

electromagnetic force

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Attractive or repulsive interaction between any charged objects.

current

electric force

magnitude

electromagnetic force

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Force resulting from interaction between electrically charged particles.

current

electric force

magnitude

electromagnetic force

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Attraction or repulsion that arises between electrically charged particles because of their motion.

current

magnetic force

magnitude

electromagnetic force

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How strong a magnet is.

magnetic strength

magnetic force

magnitude

electromagnetic force

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MS-PS2-B.1: Electromagnetic Forces

A push or pull.

Forces that act across a distance.

A directional flow of electrical charge through an object or medium.

Attractive or repulsive interaction between any charged objects.

Force resulting from interaction between electrically charged particles.

Attraction or repulsion that arises between electrically charged particles because of their motion.

How strong a magnet is.

The size or quality of something.

Which of the following pictures has the greatest magnetic force field?

What does a magnetic field look like?

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