static electricity

Question 1

What is static electricity?

Answer 1

Static electricity is the accumulation of electric charge on the surface of objects.

Question 2

True or False: Static electricity can only be generated through friction.

Answer 2

False

Question 3

Fill in the blank: The process of charging an object by rubbing it against another object is called _____ .

Answer 3

friction

Question 4

What are the two types of electric charge?

Answer 4

Positive and negative.

Question 5

Which subatomic particle carries a negative charge?

Answer 5

Electron

Question 6

What happens when two objects with the same charge are brought close together?

Answer 6

They repel each other.

Question 7

What happens when two objects with opposite charges are brought close together?

Answer 7

They attract each other.

Question 8

True or False: Insulators allow electric charge to flow freely.

Answer 8

False

Question 9

What is an example of a good insulator?

Answer 9

Rubber

Question 10

What is an example of a good conductor?

Answer 10

Copper

Question 11

Fill in the blank: The process of a charged object inducing a charge in another object without direct contact is called _____ .

Answer 11

induction

Question 12

What is the unit of electric charge?

Answer 12

Coulomb

Question 13

What phenomenon is often experienced when touching a doorknob after walking on a carpet?

Answer 13

Static discharge

Question 14

What is the term for the sudden flow of electricity caused by static discharge?

Answer 14

Spark

Question 15

True or False: Static electricity can be harmful in all situations.

Answer 15

False

Question 16

What device is used to measure electric charge?

Answer 16

Electrometer

Question 17

What is triboelectric charging?

Answer 17

Charging of an object by friction with another object.

Question 18

What role does humidity play in static electricity?

Answer 18

Higher humidity reduces static electricity by allowing charges to dissipate.

Question 19

What is the effect of static electricity on small particles like dust?

Answer 19

Static electricity can attract small particles like dust.

Question 20

Fill in the blank: The buildup of static charge on an object is often referred to as _____ .

Answer 20

static charge

Question 21

What is the principle behind a Van de Graaff generator?

Answer 21

It generates high voltages through the accumulation of static charge.

Question 22

True or False: Lightning is a form of static electricity.

Answer 22

True

Question 23

What is electrostatic discharge (ESD)?

Answer 23

The sudden flow of electricity between two electrically charged objects.

Question 24

What is the purpose of grounding in electrical systems?

Answer 24

To safely dissipate excess static charge.

Question 25

How can static electricity be reduced in a dry environment?

Answer 25

By increasing humidity or using anti-static devices.

Question 26

What does the term 'polarization' refer to in static electricity?

Answer 26

The redistribution of electric charges in an object due to an external electric field.

Question 27

Fill in the blank: The force between charged objects is described by _____ law.

Answer 27

Coulomb's

Question 28

What is the main cause of static cling in laundry?

Answer 28

Static electricity due to friction between clothes.

Question 29

What is a common application of static electricity in everyday life?

Answer 29

Photocopiers use static electricity to transfer toner to paper.

Question 30

True or False: All materials can be charged by static electricity.

Answer 30

False

Question 31

What is the effect of static electricity on hair when you remove a hat?

Answer 31

Hair can stand on end due to the static charge.

Question 32

What is the main difference between static and current electricity?

Answer 32

Static electricity is stationary, while current electricity involves the flow of charge.