Basic Electricity

Question 1

Ampere

Answer 1

One coulomb of charge (6.24 x 10^18 individual charges) going past a given point per second.

Question 2

Atom

Answer 2

The smallest constituent unit of ordinary matter that has the properties of a chemical element.

Question 3

Compound

Answer 3

In chemistry, a pure substance composed of two or more elements whose composition is constant.

Question 4

Conductor

Answer 4

In physics, an object or type of material that allows the flow of an electrical currents in one or more directions.

Question 5

Coulomb

Answer 5

The quantity of electricity carried in one second by a current of one ampere, roughly 6.24 x 10^18 individual charges.

Question 6

Current

Answer 6

The flow of electrical charge through a conductor, measured in amperes.

Question 7

Electrical Charge

Answer 7

A property possessed by an object when it has an uneven number of positive and negative charges. The more charges of one type that it has, the greater the electrical charge.

Question 8

Electrical Force

Answer 8

The fundamental force exerted by electrical charges on other electrical charges, with both attractive and repulsive interactions.

Question 9

Electron

Answer 9

A sub-atomic particle that carries a negative electrical charge and moves around the nucleus of the atom at a distinct distance, depending on its energy level.

Question 10

Insulator

Answer 10

In physics, non-conducting materials with few mobile charges that support only insignificant electric currents.

Question 11

Ion

Answer 11

An electrically charged atom or group of atoms formed by the loss or gain of one or more electrons.

Question 12

Neutron

Answer 12

A sub-atomic particle that carries no electrical charge. Neutrons exert the strong nuclear force which binds protons together in the nucleus of the atom.

Question 13

Piezoelectric

Answer 13

A device that uses pressure to separate electrical charge, consisting of certain crystalline materials arranged so that mechanical pressure causes a flow of charge.

Question 14

Proton

Answer 14

A sub-atomic particle that carries a positive electrical charge and, along with neutrons, makes up the nucleus of the atom.

Question 15

Resistance

Answer 15

The opposition to electrical current flow, measured in ohms.

Question 16

Shell

Answer 16

In atomic physics, any of the eight energy layers that surround an atomic nucleus and hold electrons.

Question 17

Thermocouple

Answer 17

A device, consisting of two different metallic wires, fused at one end and arranged in a way such that the heating of the fused junction causes a separation of charges in the wires.

Question 18

Voltage

Answer 18

The measure of potential difference across a conductor, also known as the electrical pressure that results when charges are separated.

Question 19

The fundamental law of electricity is which of the following:

Answer 19

Like charges repel and unlike charges attract

Question 20

Metals are good conductors because they have which of the following?

Answer 20

One or two electrons in their outer shell

Question 21

Which properties do the magnetic force and electrical force have in common?

Answer 21

Attracts and repels, strength varies with distance, can do work

Question 22

Current in a circuit is often characterized as which of the following?

Answer 22

Electrical flow

Question 23

Which list has the correct ways used to create electrical potential?

Answer 23

Friction
Pressure
Heat
Light
Chemical action
Magnatism

Question 24

Voltage in a circuit is often characterized as which of the following?

Answer 24

Electrical pressure

Question 25

What do we call a device that uses pressure to create electrical potential?

Answer 25

Piezoelectric

Question 26

You have one ohm of resistance when one volt of potential difference causes which of the following to flow?

Answer 26

Amp