Unit 6: Electrostatics Review

What happens when you touch a metal doorknob after rubbing your shoes on the carpet causing the carpet to become positively charged?

• The doorknob sends a burst of electric current into your body

• Millions of electrons go from your finger into the doorknob

• The doorknob sends millions of electrons into your finger

• our finger becomes negatively charged

Which of the following is caused by static electricity?

• a stove getting hot when it is turned on
• a magnet being attracted to a refrigerator
• a lightning strike during a storm
• a light bulb coming on when a switch is turned on

Tags

NGSS.HS-PS2-4

Why can you get a shock if you touch a metal doorknob after walking across a wool carpet(which is negatively charged now)?

• You have gained electrons from the doorknob

• You have gained neutrons from the doorknob

• You have lost electrons to the doorknob

• You have gained protons from the doorknob

An atom that has more protons than electrons would have what charge?

• Positive
• Negative
• Neutral (Zero)

An objective with a negative charge would _______ an object with a neutral charge

• Attract
• Repel
• Do nothing

Tags

NGSS.MS-PS2-3

What direction are the electric field lines around a proton?

• towards the charge

• away from the charge

Tags

NGSS.HS-PS2-4

Which of the following is not a good conductor of electricity?

• copper
• silver
• Glass
• aluminum

Tags

NGSS.HS-PS1-3

Which of the following is not a good insulator?

• Copper
• Glass
• rubber
• wool

Tags

NGSS.HS-PS3-4

The law of conservation of charge states that...

• all atoms have more protons than electrons
• only protons can be rubbed off of an atom
• charge cannot be created or destroyed
• charge cannot be transferred 

assume a rubber rod is rubbed against a rabbit fur and gains 5 electrons.  which of the following is true?

• The fur lost 5 electrons
• the fur gained 5 electrons
• the fur gained 5 protons
• The fur lost 2 electrons

Tags

NGSS.MS-PS2-3