Electricity Final Review

The smallest unit of an element is

• An electron
• A proton
• A neutron
• An atom

Tags

NGSS.MS-PS1-1

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)

Static electricity is 

• The balance of electrical charge on an object
• The imbalance of electrical charge on an object
• The discharge of electrical charge
• The build up of protons in the nucleus of an atom 

True or False
Like charges repel

• True
• False

True or False
A positively charged object has lost electrons

• True
• False

Tags

NGSS.HS-PS2-4

NGSS.HS-PS3-5

True or False
A negatively charged object has lost protons

• True
• False

If an atom gain's a proton then

• it is positively charged
• it is negatively charged
• it changes into a new element
• it explodes due to nuclear fussion

Tags

NGSS.HS-PS1-8

Materials that tightly hold on to their electrons are considered 

• Good conductors
• Good insulators
• Good anti-static agents
• Useful for storing charge

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2