Physical Science - Chapter 19 

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Ammeter

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66 Terms

1

Ammeter

a meter used to measure electric current through a circuit.

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2

pump

The ________ does work as it lifts the water to the storage tank, storing gravitational potential energy.

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3

Voltage

The "force "that moves electric charge carriers through an electric current; also called electric potential difference.

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4

Superconductor

________: a material with zero resistance.

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5

Voltmeter

a meter used to measure voltage.

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6

friction

Charging by ________: the process by which an object can gain excess charge while being rubbed by another object.

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7

Battery

a power source for DC electrical systems consisting of two or more electrochemical cells.

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8

Fuse

an electrical safety device that opens the circuit by melting when an overheated condition occurs due to excessive current.

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9

Ohms law

the law that states that the current in a circuit is directly related to the voltage and inversely related to the resistance.

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10

Ohm

the derived SI unit for electrical resistance.

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11

Grounding

the act of providing a path for an electric current to move into the earth.

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12

Ground fault interrupter

a safety device consisting of an outlet with a built- in circuit breaker.

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13

electric force

the field force between two charged objects

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14

electric field

a three-dimensional region around a charged object that will apply a force on other charged objects within that region

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15

electric potential energy

energy that is stored by a charged object in an electric field

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16

charging by friction

the process by which an object can gain excess charge while being rubbed by another object

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17

charging by conduction

the process by which one charged object can produce a second charged object by the two objects being placed in contact with each other and the excess charge being shared

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18

charging by induction

the process by which one charged object can produce a second charged object by allowing the electric force to move excess charge onto the second object while the two objects are not in contact with each other

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19

current electricity

electricity involving moving electric charges

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20

electric current

the movement of electric charge through a complete loop

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21

electric circuit

the loop through which current electricity can flow

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22

open circuit

an incomplete electric circuit that prevents the movement of charge

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23

closed circuit

a complete electric circuit that allows charge to flow

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24

direct current

electric current in which electric charges move in only one direction

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25

conventional current

the direction in a DC circuit that positive charges would flow; decided by agreement as the standard current direction

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26

alternating current

electric current in which the charge carriers change direction periodically

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27

electrical conductors

a material through which electric charge moves easily

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28

electrical insulator

a material through which electric charge does not move easily

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29

ampere

the fundamental SI unit of electric current

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30

ammeter

a meter used to measure electric current through a circuit

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31

voltage

The "force" that moves electric charge carriers through an electric current; also called electric potential difference

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32

voltmeter

a meter used to measure voltage

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33

battery

a power source for DC electrical systems consisting of two or more electrochemical cells

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34

ohm

the derived SI unit for electrical resistance

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35

superconductor

a material with zero resistance

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36

ohms law

the law that states that the current in a circuit is directly related to the voltage and inversely related to the resistance

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37

electrical load

an electrical device in a circuit that consumes electrical energy

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38

short circuit

an unintended path for an electric current

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39

series circuit

a circuit with only one path that electric current can take

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40

parallel circuit

a circuit with multiple paths that electric current can take

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41

electrical power

the work per second done or produced by an electrical system

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42

fuse

an electrical safety device that opens the circuit by melting when an overheated condition occurs due to excessive current

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43

circuit breaker

an electrical safety device consisting of an automatic switch that opens when there is too much current in a circuit

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44

grounding

the act of providing a path for electrical charge to move into the earth

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45

ground-fault interrupter

a safety device consisting of an outlet with a built-in circuit breaker

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46

electric force

the field force between two charged objects

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47

electric field

a three-dimensional region around a charged object that will apply a force on other charged objects within that region

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48

electric potential energy

energy that is stored by a charged object in an electric field. the quantity depends on the magnitude of the charges and the object’s position in the field

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49

charging by friction

the process by which an object can gain excess charge while being rubbed by another object

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50

charging by conduction

the process by which one charged object can produce a second charged object by the two objects being placed in contact with each other and the excess charge being shared

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51

charging by induction

the process by which one charged object can produce a second charged object by allowing the electric force to move excess charge onto the second object while the two objects are not in contact with each other

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52

current electricity

electricity involving moving electric charges

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53

electric current

the movement of electric charge through a complete loop

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54

electric circuit

the loop through which current electricity can flow

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55

open circuit

an incomplete electric circuit that prevents the movement of charge

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56

conventional current

the direction in a DC circuit that positive charges would flow; decided by agreement as the standard current direction

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57

alternating current

electric current in which the charge carriers change direction periodically

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58

electrical conductor

a material through which electric charge moves easily

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59

electrical insulator

a material through which electric charge does not move easily

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60

ampere

the fundamental SI unit of electric current

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61

electrical load

an electrical device in a circuit that consumes electrical energy

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62

short circuit

an unintended path for an electric current

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63

series circuit

a circuit with only one path that electric current can take

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64

parallel circuit

a circuit with multiple paths that electric current can take

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65

electrical power

the work per second done or produced by an electrical system

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66

circuit breaker

an electrical safety device consisting of an automatic switch that opens when there is too much current in a circuit

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