Electricity and Electrostatic Charge

Mrs. Davis rubbed two balloons with a piece of wool. What will happen when the balloons are brought near each other?

• The balloons will repel each other.

• The balloons will attract each other.

• The balloons will become positively (+) charged.

• The balloons will pop.

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

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?

• positive charge.

• negative charge.

• neutral charge

• charge at all

Tags

NGSS.MS-PS2-5

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

The ​ (a)   charges in the girl's hair are attracted to the negative charge in the balloon.

• positive

• negative

• neutral

• static

Tags

NGSS.MS-PS2-3

Rubbing the balloon on the sweater allows more electrons to move onto the balloon. This gives the ballon a ​ (a)   charge.

• negative

• positive

• neutral

• powerful

Tags

NGSS.MS-PS2-3

Match the following phenomena with their types.

• The unit of power is _________.

• current electricity

• Lightning is an example of _________.

• watts

• Electric current flowing through a wire is an example of _________.

• voltage

• The potential difference is measured in _________.

• static electricity

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

What is static electricity caused by?

• A balance of power

• A balance of positive and negative charges

• An imbalance of positive and negative charges

• An imbalance of protons and neutrons

Tags

NGSS.MS-PS2-5

An object becomes postiively charged when which of the following occurs?

• loses electrons

• gains electrons

• loses protons

• gains neutrons

Tags

NGSS.MS-PS2-3