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 

Which subatomic particles contribute the most to the mass of an atom?

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

Tags

NGSS.HS-PS1-7

Protons and Electrons balance the charge of an atom.

• True
• False

Electric charges that are different _______ each other.

• Attract
• Repel

Tags

NGSS.MS-PS2-3

Electric charges that are alike _______ each other.

• Attract
• Repel

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

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

Which of these is the electron?

• A

• B

• C

Tags

NGSS.MS-PS1-1

If mass of one object is doubled then the force of gravity is

• doubled
• half
• 4 times as big
• 1/4 times as big

Tags

NGSS.MS-PS2-4