Electricity

A negatively charged object has...

• An excess of negative charge

• A deficit of positive charge

• Too much charge

• Missing electrons

A neutral atom has:

• An excess of neutrons

• An equal number of protons and electrons

• Protons and electrons inside the nucleus

• A deficit of negative charge

There are ___ kinds of charge: __________

• 3; positive, negative, neutral

• 3; positive, nuclear, negative

• 2; negative, positive

• 2; negative, neutral

Two objects with LIKE static charges will

• attract each other
• even out in the end
• repel each other
• cause a spark

Tags

NGSS.MS-PS2-5

Rubbing a balloon on hair is an example of static charge build up created by....

• conduction
• friction
• induction
• hairduction

What happens when you touch a metal doorknob after rubbing your shoes on the carpet?

• 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

Tags

NGSS.MS-PS2-5

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.MS-PS2-3

The girl's hair and the comb are attracting  one another.  The hair and the comb have

• opposite charges
• like charges

Tags

NGSS.MS-PS2-3

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.

Tags

NGSS.MS-PS2-3

a flow of electric charge

• static electricity
• electrical field
• electric current
• electrical charge