Electric Charge

What subatomic particles would you find in the nucleus of an atom?

• Protons only
• Protons and Neutrons
• Neutrons and Electrons
• Protons and Electrons 

Tags

NGSS.MS-PS1-1

Electric charges that are different _______ each other.

• Attract
• Repel

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

Electric charges that are alike _______ each other.

• Attract
• Repel

Tags

NGSS.MS-PS2-5

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)

Tags

NGSS.MS-PS2-3

If a substance has a higher number of electrons than protons on its surface, what type of charge does it have?

• A positive charge.
• A negative charge.
• A neutral charge
• No charge at all

What is the SI unit used to measure force? 

• pounds 
• grams 
• newtons 
• friction

A repelling force occurs between two charged objects when the charges are of

• unlike signs.

• like signs.

• equal magnitude.

• unequal magnitude.

Tags

NGSS.HS-PS2-4

NGSS.HS-PS3-5

In the diagram shown, the circles represent small balls that have electric charges. Ball 1 has a negative charge, and ball 2 is repelled by ball 1. Next, you see that ball 2 repels ball 3 and that ball 3 attracts ball 4. What is the electric charge on ball 4?

• Ball 4 may have either a positive or negative charge.

• Ball 4 has a negative charge.

• Ball 4 has a positive charge.

• It is not possible to determine the charge on ball 4.

Tags

NGSS.MS-PS2-3

What is the SI unit for charge?

• Amperes per second

• Amperes

• Voltage

• Coulomb

Tags

NGSS.HS-PS2-4