1-13

Question 0

Anything that occupies space or has mass is

Answer 0

Matter

Question 1

IA substance made up of Atoms of more than one type is a

Answer 1

Compound

Question 2

The atomic number of an element is

Answer 2

The number of protons in the nucleus

Question 3

What is the max number of electrons in the valence of an Atom

Answer 3

8

Question 4

What happens to the energy from electrons furthest from the nucleus

Answer 4

It increases

Question 5

What is a free electron

Answer 5

An electron that broke loose from its atom

Question 6

Semiconductor has how many valence electrons?

Answer 6

4

Question 7

What is the smallest portion that substance can be broken down to

Answer 7

Molecule

Question 8

What is the smallest portion an element can be broken down to

Answer 8

Atom

Question 9

Protons have a charge equal but opposite to electrons

true or false

Answer 9

True

Question 10

Positive Adams have less electrons then protons

true or false

Answer 10

True

Question 11

What do you like charges dO

Answer 11

Repel

Question 12

What do you unlike charges do

Answer 12

Attract

Question 13

How do you bodies become charged

Answer 13

Friction conduction induction

Question 14

How do you neutralize a charge

Answer 14

Bring equal and opposite charges together or contact them with earth

Question 15

Applications for electric charging

Answer 15

Painting sandpaper air filters xerography

Question 16

Hazards of electric charge

Answer 16

Lightning and fuel transfer

Question 17

How do you electrons flow out of the source

Answer 17

Negative to positive

Question 18

What is a force that acts at a distance with no contact

Answer 18

Field force

Question 19

What is a charge at one point with respect to another

Answer 19

Polarity

Question 20

What is the work per-unit charge done by an energy source

Answer 20

Electro motive force or EMF

Question 21

Triboelectric effect

Answer 21

Friction

Question 22

Electrochemical force

Answer 22

Chemical

Question 23

Piezoelectric effect

Answer 23

Pressure

Question 24

Thermo electric

Answer 24

Heat

Question 25

Photovoltaic

Answer 25

Light/ solar cell

Question 26

Magnetoelectric

Answer 26

Magnetism

Question 27

What unit is current measured in

Answer 27

Amps

Question 28

What unit is voltage measured in

Answer 28

Volts

Question 29

What unit is power measured in

Answer 29

WAtts

Question 30

1 horsepower equals

Answer 30

746 Watts

Question 31

What is the calculation for efficiency.

Answer 31

P out over P in x 100

Question 32

Power equals?

Answer 32

Volts times amps

Question 33

Energy equals

Answer 33

Power times time

Question 34

What is resistance

Answer 34

Ohms it opposes flow of current

Question 35

Pictoral

Answer 35

Untrained people drawn as it appears located relative to location wire colors by name always in 3-D

Question 36

Block diagram

Answer 36

Flowchart | show circuit relationship

Question 37

One line diagram

Answer 37

Also known as Riser diagram components are labeled they don't show actual position don't show the return Path

Question 38

Wiring diagram

Answer 38

Shows actual location of components Usually uses symbols Circuit maps Shows how and where wires are located

Question 39

Schematic diagram

Answer 39

Simpler wiring diagram Ladder diagram conductors either side connection between Doesn't show physical relationship

Question 40

What is a short circuit

Answer 40

Parallel path of low resistance

Question 41

Current flows through sources from?

Answer 41

Positive to negative

Question 42

Current flows from the source?

Answer 42

Negative to positive

Question 43

What is watts law?

Answer 43

Power equals volts times amps

Question 44

What is ohms law

Answer 44

Volts equals amps times ohms

Question 45

How many times does A/C change supply

Answer 45

120 times per second

Question 46

What does a load do

Answer 46

Changes electrical energy into different type of energy

Question 47

What is the problem with high current

Answer 47

Heat and mechanical damage

Question 48

What opens the current for protection

Answer 48

A fuse or breaker

Question 49

What happens when the switch is open

Answer 49

The circuit is open the switch is off

Question 50

What measures a difference in potential between two points

Answer 50

A voltmeter

Question 51

Which meter must you connect only in series never parallel

Answer 51

Ammeter

Question 52

How do you hook up a wattmeter

Answer 52

Voltage coil parallel

Question 53

What happens when you use a DC meter with the wrong polarity

Answer 53

You could damage the pointer as it goes below zero

Question 54

What is it called when you read the pointer from the side

Answer 54

Parallax error

Question 55

What do resistors do

Answer 55

Limit current Change voltage Produce heat

Question 56

Three types of fixed resistors are

Answer 56

Wore wound Film Carbon composition

Question 57

Which type a resister is adjustable

Answer 57

Wirewound

Question 58

Which type of resister has the lowest wattage

Answer 58

Carbon composition

Question 59

A fuse is it what

Answer 59

Overcurrent device

Question 60

The time a fuse takes to open is equal to

Answer 60

The magnitude of the current

Question 61

The Edison fuse is a type of what kind of fuse

Answer 61

Plug

Question 62

Knife blade type of fuses used over

Answer 62

60amps

Question 63

A breaker is a

Answer 63

Overcurrent device

Question 64

Best semi conductor

Answer 64

Silicone

Question 64

What is always constant in a circuit

Answer 64

Resistance

Question 65

What is watts loss formula?

Answer 65

P= I squared X R

Question 66

What is a solenoid

Answer 66

Helically wound coil

Question 67

What is the electron theory?

Answer 67

Electrons flow from negative to positive

Question 68

What is a secondary battery cell

Answer 68

Rechargeable

Question 69

What is a battery made of

Answer 69

Lead and acid

Question 70

1Coloumb/1 Sec equals

Answer 70

One amp

Question 71

Conductors have how many valance electrons?

Answer 71

1-3

Question 72

Insulators have how many valence electrons?

Answer 72

5-8