Moving Charges and Magnetism

By sprinkling iron filings in a magnetic field on a flat surface, it is possible to see the __________ of a magnetic field.

• shape

• distance

• mass

• temperature

Tags

NGSS.MS-PS2-3

The image above shows how iron filings respond to magnetic fields generated by two magnets with ____________ poles facing each other.

• opposite

• like

• positive

• negative

Tags

NGSS.MS-PS2-3

The area of magnetic force around a magnet is known as its _____________.

• magnetic field

• magnetic declination

• magnetic fan lines

• magnetic tan lines

Tags

NGSS.MS-PS2-3

These magnets would....

• Repel

• Attract

Tags

NGSS.MS-PS2-3

As the magnets get farther apart, the strength of the fields get.....

• Weaker

• Stronger

• Stay the same

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

Which statement is true about both magnetic and electric fields?

• Like charges repel each other

• Like charges attract each other

• Like poles attract each other

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

If electrons transfer from a wool square to a pvc wand, the wool becomes ______________ and the wand becomes_____________.

• Positive, Positive

• Positive, Negative

• Negative, Positive

• Negative, Negative

Tags

NGSS.MS-PS2-5

Which of the following might make the spoons repel each other?

• Neither A nor B is electrically charged.

• Both A and B are negatively charged.

• A is positively charged, and B is negatively charged

• A is negatively charged, and B is not electrically charged.

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

Moving a magnet near a compass can cause the compass needle to move, even though the magnet does not touch the compass. This observation is evidence for which characteristics of magnetic fields?

• There is a north and south pole on a magnet.

• Fields can exert non-contact forces.

• Magnetic fields do not exist.

Tags

NGSS.MS-PS2-5

What is the cause of electricity?

• Magnetism

• Gravity

• Moving Electrons

• Lightning