Electricity and Magnetism

A particle that carries a negative electric charge is called a(n) ______.

• neutron
• atom
• proton
• electron

When you charge an electroscope by touching it with a charged balloon, the process is called _____.

• friction
• conduction
• induction
• grounding

A neutral object becomes negatively charged when it loses electrons.

• true
• false

Tags

NGSS.MS-PS2-3

Conduction is the process of charging an object without touching it.

• true
• false

Tags

NGSS.MS-PS2-5

What do the lines around this magnet represent?

• North Pole
• South Pole
• Magnetic Declination
• Magnetic Field

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

As the distance between two magnets increases (they get farther apart), the force between them:

• Increases
• Decreases
• Stays the Same

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

If you cut a magnet in half, what happens to the poles?

• One half gets the North Pole, the other half gets the South Pole
• Both halves get only a North Pole
• Both halves get only a South Pole
• Both halves get a North pole and a South Pole

Tags

NGSS.MS-PS2-3

What is responsible for the Magnetic Field around Earth?

• The Earth's crust
• The Earth's molton iron core
• The Earth's mantel
• The Sun

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

An electromagnet's poles may be reversed by:

• decreasing the voltage of the coil
• increasing the number of coils
• changing the direction of current flow
• altering the material used to make the coils

Tags

NGSS.MS-PS2-3

In un-magnetized materials the domains are __________ aligned.

• super
• slightly
• randomly
• always