Electricity May 15

Question 0

The charge on a proton is called?

Answer 0

Positive

Question 1

What are the 3 ways static electricity can r transferred?

Answer 1

Friction, Conduction, induction

Question 2

The charge on an electron is called?

Answer 2

Negative

Question 3

The interaction between electrical charges is?

Answer 3

Electricity

Question 4

The attraction or repulsion between electric charges

Answer 4

Electric force

Question 5

What is a region around a charged object where the object electric force is exerted on other charged objects?

Answer 5

Electric field

Question 6

Electric field lines are drawn with arrows to show the (blank) of the electric force

Answer 6

Direction

Question 7

The greater the distance from a charge object the (blank) the electric field

Answer 7

Weaker

Question 8

When there are two of more charges, the electric fields of each individual charge (blank) by repelling or attracting.

Answer 8

Combine

Question 9

How can objects become charged?

Answer 9

Friction, induction, conduction

Question 10

The build up of charges on an object is called

Answer 10

Static electricity

Question 11

If an object gains electrons, what will be it’s overall charge?

Answer 11

Negative

Question 12

What law states that charges are not created nor destroyed?

Answer 12

Conservation of charges

Question 13

The transfer of electrons from one subject to another by rubbing

Answer 13

Friction

Question 14

The transfer if electrons from a charged object to another object by direct contact

Answer 14

Conduction

Question 15

The movement of electrons to one part of an object by the electric field of another object

Answer 15

Induction

Question 16

An electric charge can be detected by an instrument called?

Answer 16

Electroscope

Question 17

The loss of static electricity as electric charges transfer from one object to another is called?

Answer 17

Static discharge

Question 18

What is lightning an example of?

Answer 18

Static discharge

Question 19

Is the continuous flow of electric charges through a material

Answer 19

Electric current

Question 20

What is the unit for the rate of current?

Answer 20

Amp; a; ampere

Question 21

What must occur to produce electric current?

Answer 21

Charges must flow continuously from one place to another

Question 22

A complete unbroken path through which electric charges can flow is an…?

Answer 22

Electric current

Question 23

A material through which charges flow easily?

Answer 23

Conductor

Question 24

A material through which charges cannot move easily

Answer 24

Insulator

Question 25

Why are conduction electrons able to move throughout a conductor?

Answer 25

They have a path to follow

Question 26

What is the energy an object has as a result of it's position

Answer 26

Potential energy

Question 27

The unit of measure of voltage?

Answer 27

Volt

Question 28

A device that creates a potential difference in an electric circuit (where the electric potential energy is bigger)

Answer 28

Voltage source

Question 29

What is a battery and generator?

Answer 29

Voltage source

Question 30

The measure of how difficult it is for charges to glow through a matter

Answer 30

Resistance

Question 31

The unit of measure of resistance?

Answer 31

Ohm

Question 32

What are the four factors that determine the resistance if a wire or any object?

Answer 32

Material, length, diameter, temperature

Question 33

Ability an object has

Answer 33

Chemical energy

Question 34

When there's a rearrangement

Answer 34

Chemical reaction

Question 35

A device that converts chemical energy into electrical energy

Answer 35

Electrochemical cell

Question 36

2 metals in electrochemical cells

Answer 36

Electrode

Question 37

A substance that conducts electric current

Answer 37

Electrolyte

Question 38

The part of an electrode above the surface of an electrolyte

Answer 38

Terminal

Question 39

A combo of 2 or more electrochemical cells in a series

Answer 39

Battery

Question 40

An electrochemical cell in which the electrolyte is a liquid

Answer 40

Wet cell

Question 41

An electrochemical cell in which the electrolyte is a paste

Answer 41

Dry cell

Question 42

The energy stored in chemical compounds is...?

Answer 42

Chemical energy

Question 43

The process in which substances change into new substances with different properties

Answer 43

Chemical reaction

Question 44

A device that transforms chemical energy into electrical energy is called..?

Answer 44

Electrochemical cells

Question 45

The part used to connect the cell to a circuit

Answer 45

Terminal

Question 46

A metal in an electrochemical cell

Answer 46

Electrode

Question 47

A substance that conducts electric current

Answer 47

Electrolyte

Question 48

What occurs between the electrodes and electrolyte in an electrochemical cell

Answer 48

Chemical reactions

Question 49

A combo of 2 or + electrochemical cells in a series is called..?

Answer 49

Batteries

Question 50

Ohm's law says that (blank) is equal to the voltage divided by the current

Answer 50

Resistance

Question 51

Ohm's law formula

Answer 51

Resistance= voltage divided by current; voltage = current times resistance

Question 52

3 basic features all electric circuits must have

Answer 52

Devices run by electrical energy Source of electrical energy Connected by conducting wires

Question 53

If all parts of an electric circuit are connected one after another along 1 path

Answer 53

Series circuit

Question 54

In a series circuit have many paths are there for a current to take?

Answer 54

1

Question 55

If different parts of a circuit are in separate branches, the circuit is called a..?

Answer 55

Parallel circuit

Question 56

The rate at which energy is transformed from one form to another is known as..?

Answer 56

Power

Question 57

What is the unit of power?

Answer 57

Watt

Question 58

What two factors does the power of a light bulb or appliance depend on?

Answer 58

Voltage and current

Question 59

What two factors does the energy use in an electric bill depend on?

Answer 59

Voltage (watts) and time (seconds)

Question 60

Formula for amount of energy used by an appliance

Answer 60

Energy= power times time

Question 61

Electric power is usually measured in thousands of watts, or...?

Answer 61

Kilowatts

Question 62

The unit of electrical energy is...?

Answer 62

Kilo watt-hours

Question 63

3 potential dangers when high voltage wires are damages?

Answer 63

Short circuits, electric shocks, fire

Question 64

A connection that allows current to take a path of least resistance

Answer 64

Short circuit

Question 65

Most buildings have a wire that connects all electric circuits to the..?

Answer 65

Ground

Question 66

A plugs round prong which connects any metal piece if an appliance to the ground wire of a building is...?

Answer 66

Third prong

Question 67

A device that contains a thin strip of metal that will melt if there is to much current through it

Answer 67

Fuse

Question 68

A reusable safety switch that breaks the circuit when the current gets too high

Answer 68

Circuit breaker

Question 69

What happens when a fuse overloads?

Answer 69

Needs to be replaced

Question 70

What happens when a circuit breaker is overloaded?

Answer 70

Reconnect the metal band to the wires

Question 71

a device that measures current

Answer 71

Ammeter