8th Science - Electricity and Magnetism Unit 5

An object becomes charged when the atoms in the object gain or lose

• electrons
• protons
• neutrons
• all of the above

Tags

NGSS.MS-PS2-5

If you rub a glass rod with a piece of silk, the rod becomes positively charged. This means that

• friction destroyed electrons in the rod.
• the silk has become negatively charged.
• protons have moved to the rod.
• glass attracts more protons.

If an object has the same number of positive and negative charges, its electrical charge is...

• positive
• negative
• neutral or no charge
• opposite

What charge does a proton have?

• negative (-)
• positive (+)
• neutral or no charge (0)

What charge does an electron have?

• negative (-)
• positive (+)
• neutral or no charge (0)

When you get shocked by touching a doorknob, that's an example of ___________________.

• static electricity

• an electrical circuit

Static electricity is when_________________

• electrons jump from one thing to another.

• magic happens.

Tags

NGSS.MS-PS2-5

NGSS.MS-PS2-3

Ms Pippin rubbed two balloons with a piece of wool. What will happen when the balloons are brought near each other?

• The balloons will repel each other.

• The balloons will attract each other.

• The balloons will become positively (+) charged.

• The balloons will pop.

Tags

NGSS.MS-PS2-5

NGSS.MS-PS2-3

What is the major difference between static electricity and current electricity?

• Current electricity involves a continuous flow of elecrons; static electricity is a sudden transfer of protons

• Current electricity can be deadly; static electricity is almost always safe

• In current electricity, there's a single transfer of electrons; in static electricity, there's a steady flow of electrons

• Current electricity involves a flow of electrons; static electricity involves a single transfer of electrons

What types of charges attract?

• Positive and Positive
• Positive and Neutral
• Negative and Neutral
• Positive and Negative