Electromagnetic Force Investigation 2

If you cut a permanent magnet into four pieces, you will have _____?

• four temporary magnets

• four smaller permanent magnets

• two north poles and two south poles

• four objects that are no longer magnets

Tags

NGSS.MS-PS2-3

A magnet exerts a force, but you can't see it.

Choose true or false for the following statement.

A paper clip moves toward a magnet when the two objects are about 2cm apart.

• True

• False

Tags

NGSS.MS-PS2-5

A magnet exerts a force, but you can't see it.

Choose true or false for the following statement.

Sometimes you cannot push two magnets together to make them touch.

• True

• False

Tags

NGSS.MS-PS2-5

A magnet exerts a force, but you can't see it.

Choose true or false for the following statement.

A magnet is placed on an aluminum pan; when you hold the magnet only, the pan falls to the floor.

• True

• False

A magnet exerts a force, but you can't see it.

Choose true or false for the following statement.

Iron filings on a plate move into a distinct pattern when gently shaken above a magnet.

• True

• False

Tags

NGSS.MS-PS2-5

Study the data table. What question was this student testing?

• How many washers you can pick up with a magnet?

• What is the average number of washers picked up by a magnet?

• How does the number of magnets affect the number of washers picked up?

• How many trials are needed to pick up the most washers?

What cause-and-effect relationship can be stated from the data in the table?

• You can't say because something is wrong with the data; the student should have picked up the same number of washers for each trial.

• The average number of washers picked up decreases as more magnets are used.

• The average number of washers on magnet can pick up is 9.

• The more magnets you use the more washers you can pick up.

Tags

NGSS.MS-PS2-3

In a computer simulation, Jeffrey moves a magnet (Magnet 2) toward another magnet (Magnet 1) that cannot move. What happens to the potential energy in the system of magnets?

• The potential energy does not change because the magnets in the system do not change.

• The potential energy increases because Magnet 2 moves against the magnetic force.

• The potential energy decreases because Magnet 2 moves against the magnetic force.

• The potential energy decreases because Magnet 2 moves in the same direction as the magnetic force.

Tags

NGSS.MS-PS2-3

NGSS.MS-PS3-2