Electricity vocabulary

Question 0

Photocell

Answer 0

A device that converts light energy into electrical energy

Question 1

Electroscope

Answer 1

A tool invented by DuFay that determines whether an object is charged

Question 2

Ohms

Answer 2

Unit if measurement for electrical resistance

Question 3

Law of Electric Charge

Answer 3

States that like charges repel or push away, opposite charges attract

Question 4

Electric current

Answer 4

The rate at which charges pass a given point

Question 5

Static electricity

Answer 5

An electric charge at rest; generally produced by friction or induction

Question 6

Fuses

Answer 6

A safety device that has a thin strip of metal that melts if the electric current is too high. Melted metal causes a break in the circuit.

Question 7

Insulator

Answer 7

A material in which electrical charges cannot move freely

Question 8

Lightning rod

Answer 8

A structure invented by Benjamin Franklin that safely discharges electricity from lightning to the ground

Question 9

Electrode

Answer 9

The part of a cell through which charges enter or exit

Question 10

Thales

Answer 10

Greek philosopher who observed that rubbed amber attracts small objects

Question 11

Electric force

Answer 11

The force of attraction or repulsion on a charges particle that is due to an electric field

Question 12

Resistance

Answer 12

The opposition presented to the current by a material or device “Electrical Friction”

Question 13

Electric discharge

Answer 13

The release of electricity stored in a source

Question 14

Circuit breaker

Answer 14

A switch that automatically opens if the current is too high.

Question 15

Benjamin Franklin

Answer 15

The scientist who demonstrated in 1751 that lightning is a form of electricity. He also invented lightning rods, slippers, the armonica, and the United States of America

Question 16

Series circuit

Answer 16

An electrical circuit connected so that current passes through each component in turn without branching

Question 17

Stephen Gray

Answer 17

A scientist who studied electrical conduction and performed crazy experiments to test conduction

Question 18

Electrical field

Answer 18

The space around a charge objects in which another charged object experiences an electric force

Question 19

Cell

Answer 19

A device for conversion of chemical or radiant into electrical energy

Question 20

Friction

Answer 20

The rubbing of one object or surface against another

Question 21

Electrical power

Answer 21

The rate at which electrical energy is converted into other forms of energy

Question 22

Voltage

Answer 22

The potential difference between two points, measured in volts

Question 23

Parallel circuits

Answer 23

A circuit in which the parts are joined in branches such that the potential difference across each part is the same

Question 24

Amperes

Answer 24

The unit for electrical current

Question 25

Conductor

Answer 25

A material in which charges can move easily

Question 26

Thermocouple

Answer 26

A device that converts thermal energy into electrical energy

Question 27

Induction

Answer 27

Charging that happens when charges in an uncharged metal object are rearranged without direct contact

Question 28

Watt

Answer 28

The unit for power

Question 29

Battery

Answer 29

Consists of several cells