AC T1

Question 1

it is a property of matter that results from the presence or movement of electric charge. According to modern theory, matter is electrical in nature.

Answer 1

Electricity

Question 2

it is anything that occupies space and has mass

Answer 2

matter

Question 3

It is the smallest particle of an element that is capable of independent existence

Answer 3

atom

Question 4

it is the smallest particle of matter that is capable of free existence

Answer 4

molecule

Question 5

it is a substance that cannot be decomposed any further by chemical action

Answer 5

element

Question 6

it is a combination of two or more elemens

Answer 6

compound

Question 7

is a material composed of two or more substances, each of which retains its own characteristic properties

Answer 7

mixture

Question 8

positively charged particle

Answer 8

proton

Question 9

negatively charged particle

Answer 9

electron

Question 10

particle with neutral charge

Answer 10

neutron

Question 11

represents the number of protons or electrons of an atom

Answer 11

atomic number

Question 12

it represents the sum of protons and electrons of an atom

Answer 12

atomic mass

Question 13

atom that has net positive or negative charge resulting from unequal number

Answer 13

ion

Question 14

it is an energy keek or region

Answer 14

shell

Question 15

electrons found in the outermost shell

Answer 15

valence electrons

Question 16

these are materials that allow the essentially free passage of current when connected to a battery or other source of electrical energy

Answer 16

electrical conductors

Question 17

also called dielectrics

Answer 17

electrical insulators

Question 18

these are materials that posses low conductivity or offer a relatively high resistance to the flow of electric current

Answer 18

electrical insulators

Question 19

these are materials that have conductivity about midway between good conductors and good insulators

Answer 19

electric semiconductor

Question 20

it is the motion or transfer of charges from one region of a conductor to another. Its unit is the Ampere (A) named after André Marie
Ampère.

Answer 20

electric current

Question 21

electricity from heat

Answer 21

thermoelectricity

Question 22

electricity from friction

Answer 22

static

Question 23

electricity from pressure

Answer 23

piezoelectricity

Question 24

electricity from a chemical action

Answer 24

electrochemistry

Question 25

electricity from light

Answer 25

photoelectricity

Question 26

electricity from magnetism

Answer 26

magnetoelectricity

Question 27

the unit of voltage

Answer 27

Volt (V)

Question 28

it is the driving force behind current flow

Answer 28

electric voltage

Question 29

it is the motion or transfer of charges from one region of a conductor to another

Answer 29

electric current

Question 30

it is the difference in the electric potentials of two charged bodies. Its unit is the volt.

Answer 30

electric potential difference

Question 31

it is the property of a material that limits the amount of flow of current and converts electric energy to heat energy. Its unit is the Ohm

Answer 31

electric resistance

Question 32

it is defined as the rate
at which electrical energy is expended or used up. It is the rate electric energy is converted into another form, such as light, heat or mechanical energy (or converted from another form into electrical energy). Its unit is the Watt (W).

Answer 32

electrical power

Question 33

it is the capacity to d o work. It is measured in Joules

Answer 33

energy

Question 34

it is a collection of electrical elements interconnected in some specific way through which electric current flows or it is intended to flow.

Answer 34

electric circuit

Question 35

is the cost of electrical energy consumed.

Answer 35

energy charge

Question 36

is the user’s highest rate at which energy is consumed in kilowatts.

Answer 36

maximum demand

Question 37

is the billing fee related to the maximum charge.

Answer 37

demand charge

Question 38

refers to the device or component that consumes electrical power in a circuit.

Answer 38

load

Question 39

These include incandescent bulbs, fluorescent lamps, LED lights, and other types of lighting used for indoor and outdoor illumination.

Answer 39

lighting fixtures

Question 40

Devices such as electric heaters, electric furnaces, and baseboard heaters that use electricity to generate heat

Answer 40

heating appliances

Question 41

Air conditioners, refrigerators, and freezers are examples of electrical loads used for cooling purposes.

Answer 41

cooling appliances

Question 42

are used in various applications, including fans, pumps, compressors, conveyor belts, and various industrial machinery.

Answer 42

motors

Question 43

Devices like televisions, computers, washing machines, dryers, dishwashers, microwaves, and other household appliances are common electrical loads in residential settings.

Answer 43

electronic and appliances

Question 44

include various
machinery, motors, and equipment used in manufacturing processes,
such as presses, lathes, CNC machines, and welding equipment.

Answer 44

industry equipment

Question 45

Electric saws, drills, grinders, and other power tools used
in construction and workshops are considered electrical loads.

Answer 45

power tools

Question 46

including electric furnaces, heat pumps, and air conditioning units, are significant electrical loads in both residential and commercial
buildings.

Answer 46

HVAC systems