Static vs Current Electricity

Which statement best describes a difference between static electricity and current electricity?

• Static electricity is human-harnessed energy while current electricity is natural energy.

• Static electricity is created energy while current electricity is spent energy.

• Static electricity is natural energy while current electricity is human-harnessed energy.

• Static electricity is positive energy while current electricity is negative energy.

The pictures show two forms of electricity. Compared to static electricity, how do electrons move in current electricity?

• The electrons move freely.

• The electrons do not move.

• The electrons repel each other.

• The electrons are grouped in place.

Tags

NGSS.MS-PS2-3

You place a charged balloon next to a wall and let go. Which describes what will most likely occur?

• The negatively charged balloon will attract the positive charges in the wall, causing the balloon to stick to the wall.

• The negatively charged balloon will repel the positive charges in the wall, allowing the balloon to float away.

• The positively charged balloon will attract the positive charges in the wall, causing the balloon to stick to the wall.

• The positively charged balloon will repel the positive charges in the wall, allowing the balloon to float away.

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

Which description best identifies the cause of static electricity?

• a lack of any neutral charges

• a lack of any positive or negative charges

• an imbalance of positive and negative charges

• an exact balance of positive, negative, and neutral charges.

The balloon will move toward the

(a)   because the ​ (b)   charges on the balloon are ​ (c)   the ​ (d)   charged on the sweater.​ ​

• sweater

• negative

• attached to

• positive

• repelled by

• balloon

• wall

Tags

NGSS.MS-PS2-3

Match the following phenomena with their types.

• The potential difference is measured in _________.

• voltage

• Lightning is an example of _________.

• current electricity

• The unit of power is _________.

• static electricity

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

• watts

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

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

Which statement best describes what will happen as negatively charged electrons move from the cloth to the balloon?

• The cloth will become positively charged, and the balloon will become neutral.

• The cloth will become negatively charged, and the balloon will become neutral.

• The cloth will become positively charged, and the balloon will become negatively charged.

• The cloth will become negatively charged, and the balloon will become positively charged.

Tags

NGSS.MS-PS2-3

When is it easiest for a person to build up static electricity?

• after a rainstorm when the air is warm and humid

• during the winter when the air is dry

• after a lightning strike when the air is full of electricity

• during the spring when the ground is wet

Tags

NGSS.MS-PS2-5