Foss Electromagnetic Magnets

If you cut permanent magnet into four pieces, you will have _______________. Choose the best answer.

• Four temporary magnets

• Four smaller permanent magnets

• Two north poles and two south poles

• Four objects that are no longer magnets

A magnet exerts a force, but you can't see it. Write T next to each example that provides evidence that this is true; write F if the example does not provide the needed evidence.

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

• True

• False

Tags

NGSS.MS-PS2-5

Write T next to each example that provides evidence that this is true; write F if the example does not provide the needed evidence.

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

• True

• False

Tags

NGSS.MS-PS2-5

NGSS.MS-PS2-3

Write T next to each example that provides evidence that this is true; write F if the example does not provide the needed evidence.

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

• True

• False

Tags

NGSS.MS-PS2-5

Write T next to each example that provides evidence that this is true; write F if the example does not provide the needed evidence.

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

• True

• False

Tags

NGSS.MS-PS2-5

NGSS.MS-PS2-3

Fill in the blanks with correct terms: potential or kinetic

When a magnet causes a paper clip to move, it's an example of _____________ energy being changed into ______________ energy.

• kinetic, potential

• potential, kinetic

• potential, potential

• kinetic, kinetic

Tags

NGSS.MS-PS3-5

Fill in the blank with the correct term: potential or kinetic

A child running is an example of ______________ energy.

• potential

• kinetic

Tags

NGSS.MS-PS3-5

NGSS.MS-PS3-1

Fill in the blank with the correct term: potential or kinetic

A motionless iron object in the magnetic field of a magnet may be said to have ______________ energy.

• potential

• kinetic

Tags

NGSS.MS-PS3-2

People often try to stick notes and other objects to refrigerator doors, using magnets. A student tried to do this, but the object he wanted to stick to the refrigerator fell to the floor.

Choose the answer that says if the explanation explains why the magnet was not able to hold the object to the refrigerator door or if the statement does not help explain what happened.

The refrigerator door is made of steel (that contains iron).

• Yes, it explains what happened.

• No, it does not explain what happened.

Choose the answer that says if the explanation explains why the magnet was not able to hold the object to the refrigerator door or if the statement does not help explain what happened.

The magnet is too weak.

• Yes, it explains what happened.

• No, it does not explain what happened.

Tags

NGSS.MS-PS2-5