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Flashcards in D1 Deck (82)
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A substance that is made up of more than one type is a

Compound

1

Anything that occupies space or has mass is referred to as

Matter

2

The atomic number of an element refers to the number of _____ in the ____ of an atom

Protons, nucleus

3

The maximum number of electrons allowed in Valence orbit.

8

4

In orbits farther from the nucleus, the energy possessed by electrons

Increases

5

An electron that has broken loose from its atom is a

Free electron

6

Semiconductors contain ____ valence electrons.

Four

7

Most metals are good

Conductors

8

The smallest independent portion that a substance can be broken down to is a

Molecule

9

The smallest portion an element can be broken into

Atom

10

Negative charge is called

Anion

11

Positive charge is called

Cation

12

The first Law

Like charges repel an unlike charges attract

13

The force between two charges at rest is directly proportional to the product of the magnitudes of the charges and inversely proportional to the square of the distance between them.

Coulomb's Law

14

Each atom shares its valence electrons with others around it

Is a Metallic Bond

15

An atom that has a positive charge possess _____ electrons then protons

Fewer

16

Like charges ____ and unlike charges _____

Repel and attract

17

Electrostatic charge becomes a hazard

Lightening and fuel handling

18

The body can receive an electrostatic charge by

Friction (contact)
Conduction
Induction

19

Electrons flow ____ to ____

(-) to (+)
Negative to positive

20

A force that acts at a distance with no contact

A Field force

21

____ refers to the charge at one point with respect to another

Polarity

22

Two dissimilar materials rubbed together is the _____ effect

Triboelectric effect

23

The work per unit charge done by a source of energy on electric charges, to move them against an electric field.

Electromotive Force (emf)

24

Piezoelectric effect aka

Pressure

25

Electrochemical effect aka

Chemical ---> battery

26

Thermoelectric effect aka

Heat

27

Thermocouples used in series is called?

Thermopile

28

Light
Extra energy causes the electrons to leave their atoms, and current to flow.

Photovoltaic effect

29

Name of the device which uses the photovoltaic effect

Photovoltaic cell