Unit 6: Static Electricity

Question 1

What is electricity?

Answer 1

The flow of electrical energy caused by The movement of tiny particles called electrons.

Question 2

What are the smaller particles that an atom contains

Answer 2

Protons, neutrons and electrons

Question 3

What type of charge does a proton have

Answer 3

A proton has a positive charge (+)

Question 4

What type of charge does an electron have

Answer 4

An electron has a negative charge (-)

Question 5

What type of charge does a neutron have

Answer 5

You can either say:

A) A Neutron has no charge (0)

Question 6

If an atom has the equal number of protons and electrons, does the atom have a charge?

Answer 6

No

Question 7

If the number of protons and electrons are NOT equal, does the atom have a charge?

Answer 7

Yes

Question 8

What is a charge atom called

Answer 8

An ion

Question 9

What are the different types of ions

Answer 9

An Anion and a cation

Question 10

What is an anion?

Answer 10

Anions are negatively charged ions
(more electrons than protons)

Question 11

What is a cation

Answer 11

Cations are positively charged ions
(Less electrons than protons)

Question 12

When atoms have an unequal number of protons and electrons, we say that they carry an ______.

Answer 12

Electric charge

Question 13

What is an electric charge

Answer 13

An electric charge is a form of charge, either positive or negative, that exerts an electric force

Question 14

What are all objects made of

Answer 14

Atoms

Question 15

How is the overall charge of an object Determined

Answer 15

The overall charge of an object is determined by comparing the number of protons and electrons it contains

Question 16

What is a neutral object

Answer 16

A neutral object is an object that has not been charged

Question 17

How does a neutral object become charged?

Answer 17

Objects become charged when electrons are transferred between the objects, Causing the objects to either gain or lose electrons

Question 18

Do neutral objects have a equal number of protons and electrons?

Answer 18

Yes

Question 19

Are there more protons in a negatively charged atom or are there more electrons?

Answer 19

A negatively charged object has more electrons than protons

Question 20

Are there more protons in a positively charged object or are there more electrons?

Answer 20

A positively charged object has more protons than electrons

Question 21

Does a negatively charged object gain or lose electrons?

Answer 21

A negatively charged object gains electrons

Question 22

Does a positively charge object gain or lose electrons?

Answer 22

A positively charged object loses electrons

Question 23

Does a positively charge object gain or lose electrons?

Answer 23

A positively charged object loses electrons

Question 24

What happens when 2 neutral objects come in contact with each other

Answer 24

When 2 neutal objects made of different materials come in contact with each other, electrons may transfer between the 2, causing the objects to become positively and negatively charged

Question 25

Which object becomes charged when electrons move from one object to the other

Answer 25

As electrons move from one object to the other, both objects will become charged (One becomes positive and the other will become negative)

Question 26

What is static electricity

Answer 26

Static electricity is an imbalance of electric charge on the surface of an object

Question 27

What is The Law of Electric Charges

Answer 27

A charged object exerts an electric force

Question 28

Electric Force

Answer 28

The force exerted by an object with an electric charge; can be a force of attraction or repulsion

Question 29

Will objects with like charges repel or attract?

Answer 29

Repel

Question 30

Will objects with unlike charges repel or attract?

Answer 30

Attract

Question 31

What does the strength of the force depend on?

Answer 31

The amount of charge carried by each object and the distance

Question 32

Methods of charging (3)

Answer 32

• Friction • Reduction • Induction

Question 33

How are electric charges detected?

Answer 33

With electroscope(s)

Question 34

What are the 2 types of electroscopes?

Answer 34

- Pithball electroscope - Metal leaf electroscope

Question 35

How do you determine if a charge is negative or positive?

Answer 35

More electrons = negative More protons = positive

Question 36

What is an electrostatic series

Answer 36

An electrostatic series is a scale to measure the charge tendency (positive or negative based on the material)

Question 37

What is friction

Answer 37

When 2 objects rub against each other To transfer electrons

Question 38

What is conduction

Answer 38

When one charged object and 1 neutral object Touch each other to both become charged (- and +)

Question 39

What are the 2 types of induction

Answer 39

Temporary and permanent

Question 40

What is temporary induction

Answer 40

When a neutral and charged object go near each other and both become charged until the originally charged object is away

Question 41

What is a permanent induction

Answer 41

One charged object and 1 neutral object (grounded) go near and both become charged permanently

Question 42

What does it mean to ground an object

Answer 42

Grounding is connecting an object to a large body that is capable of removing the charge that an object might have

Question 43

Where do the electronics usually go when you ground an object

Answer 43

Grounding involves transferring electrons between a charged object and a very large neutral object such as **The Earth**

Question 44

What happens if the Earth gains or loses electrons

Answer 44

Because the Earth is such a big surface, It will still act as it is neutral