Neets Mod 1

Front 1

Matter can be found in which form(s)

Back 1

Solid
Liquid
Gaseous

Front 2

A substance that CANNOT be reduced to a simpler substance by chemical means is called a/an

Back 2

Element

Front 3

A molecule is the smallest possible particle that retains the characteristic of which substances

Back 3

A compound

Front 4

An atom is the smallest possible particle that retains the characteristic of which substance

Back 4

An element

Front 5

What subatomic particle has a negative charge and a small mass

Back 5

Electron

Front 6

What subatomic particle has a positive charge and a large mass

Back 6

Proton

Front 7

What subatomic particle has no charge

Back 7

Neutron

Front 8

When light is represented as a tiny packet of energy, what are these packets of energy called

Back 8

Photons

Front 9

If light energy collides with an orbiting electron, what happens to the electron

Back 9

The electron will jump to an orbit further from the nucleus

Front 10

After the electron jumps into an orbit further from the nucleus, the electron will return to the condition it had before being acted upon by the light. When the electron returns to this condition, what action occurs

Back 10

Light energy is emitted

Front 11

The number of electrons in the outermost shell of an atom determines what characteristic of the atom

Back 11

Valence

Front 12

When an atom gains or loses an electron, what term applies

Back 12

Ionized

Front 13

What is the main difference between conductors, semiconductors, and insulators

Back 13

The number of free electrons

Front 14

A substance with an excess of electrons is considered to be in what electrical state

Back 14

Negative

Front 15

What action is the easiest way to accumulate a static electric charge

Back 15

Friction between two insulators

Front 16

An atom that contains 6 protons and 5 electrons has what electrical charge

Back 16

Negative

Front 17

How do "like" and "unlike" charges react to one another?

Back 17

Unlike charges attract each other, like charges repel each other

Front 18

What is/are the term (s) applied to the space between and around charged bodies in which their influence is felt

Back 18

Electric field of force
Electrostatic field
Dielectric field

Front 19

Electrostatic lines of force are drawn in which manner

Back 19

Entering negative charge, leaving positive charge

Front 20

True or False. High-fidelity speakers use magnetism.

Back 20

True

Front 21

Magnetic materials have what qualities

Back 21

They are attracted by magnets
They can be magnetized

Front 22

Ferromagnetic materials have what quality

Back 22

They are relatively easy to magnetize

Front 23

A material with low reluctance and high permeability such as iron or soft steel is used to make what type of magnet

Back 23

Temporary

Front 24

The ability of a material to retain magnetism is called

Back 24

Retentivity

Front 25

The law of magnetic poles states what on its relationship

Back 25

Like poles repel, unlike poles attract

Front 26

The north indication pole of a compass needle is attracted to which pole of the earth

Back 26

The magnetic north pole

Front 27

Weber's theory of magnetism assumes that magnetic material is composed of

Back 27

Tiny molecular magnets

Front 28

According to the domain theory, if an atom with 26 electrons has 20 electrons spinning counterclockwise, the atom is considered to be

Back 28

Magnetized

Front 29

If a glass plate is placed over a magnet and iron filings are sprinkled over the glass, a pattern will be visible. What does this pattern indicate

Back 29

The magnetic field

Front 30

An imaginary line used to illustrate a magnetic effect is known as a/an

Back 30

Magnetic line of force

Front 31

A magnetic shield or screen used to protect a delicate instrument should be made of what material

Back 31

Soft-iron

Front 32

Bar magnets should be stored in what manner

Back 32

In pairs with a north pole and a south pole together

Front 33

What is the term applied to the ability to do work

Back 33

Energy

Front 34

An object that is in motion has what type of energy

Back 34

Kinetic

Front 35

A book sitting on a shelf has what kind of energy

Back 35

Potential

Front 36

What term(s) apply(ies) to the difference of potential between two bodies

Back 36

Voltage
Electromotive force

Front 37

What terms is equal to "2.1 kV"

Back 37

2.1x10^6 V

Front 38

What is the general term that describes a device which supplies a voltage

Back 38

A voltage source

Front 39

In addition to friction, magnetism, and chemical action, what method(s) can be used to produce a voltage

Back 39

Pressure
Heat
Light

Front 40

What voltage producing method is used for radio receiver's oscillator

Back 40

Pressure

Front 41

What voltage producing method is used for thermocouples

Back 41

Heat

Front 42

What voltage producing method is used for automobile batteries

Back 42

Chemical action

Front 43

What voltage producing method is used for automobile generators

Back 43

Magnetism

Front 44

What voltage producing method is used for flashlight cells

Back 44

Chemical action

Front 45

Current in an electric circuit is caused by what actions

Back 45

Electrons moving from negative to positive

Front 46

When directed drift takes place, at what speed does the effect take place

Back 46

186,000 miles per second

Front 47

If the voltage in a circuit increase, what happens to the current

Back 47

Current increases

Front 48

If low weight is the major factor, which material should be used as a conductor

Back 48

Aluminum

Front 49

What material is MOST widely used as a conductor in electrical equipment

Back 49

Copper

Front 50

Resistance of a conductor will increase with what changes to the cross-sectional area and length of the conductor

Back 50

Cross-sectional area is decreased, length is increased

Front 51

A material whose resistance decreases as the temperature increases has what temperature coefficient

Back 51

Negative

Front 52

A material whose resistance remains constant as the temperature increases has what temperature coefficient

Back 52

Zero

Front 53

True or false. Ohm is a unit of conductance

Back 53

False

Front 54

Resistance bears what kind of relationship to conductance

Back 54

A reciprocal relationship

Front 55

How is the ability of a resistor to dissipate heat indicated

Back 55

By the wattage rating

Front 56

Carbon resistors have which of the following disadvantages

Back 56

A limited range of resistance values

Front 57

What types of resistors will overcome the disadvantage of a carbon resistor

Back 57

Wirewound resistor

Front 58

What is the total number of connections on (a) a rheostat and (b) a potentiometer

Back 58

(a) Two (b) Three

Front 59

What type of variable resistors are used to control a large amount of current

Back 59

Wirewound potentiometer

Front 60

A carbon resistor is color-coded orange, orange, orange. What is the resistance value of this resistor

Back 60

33.0k Ohms

Front 61

What are the allowable limits of ohmic value in a resistor color coded blue, green, yellow, gold

Back 61

682.5k to 617.5 k Ohms