Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Isabellas ch.9-12 sci.test > Isabella's ch.9-12. Sci.test > Flashcards

Isabella's ch.9-12. Sci.test Flashcards

1
Q

Transfer of an electric charge by direct contact between objects

A

Conduction

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

who built the first electrostatic generator

A

Otto von guericke

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

SI unit of resistance

A

Ohm

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Material that allows current to flow through it with no resistance

A

Superconductor

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Communication device that uses electromagnetics to produce a message by means of audible clicks

A

Telegraph

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Device that converts posts of electricity into sound waves

A

Loudspeaker

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Device that consists of one or more electrochemical cells connected in series to produce a single source of current

A

Battery

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

General term for a device that transfers the energy of an electric current into another useful energy

A

Load

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Early device developed the store electric charge

A

Leyden jar

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Device that converts absorbed sunlight directly into electricity

A

Photovoltaic cell

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Type of generator that works by passing a conducting fluid through a magnetic field

A

Magnetic hydrodynamic generator

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Electric field with even strength throughout

A

Uniform field

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Method of magnetism in which an object is permanently magnetized by stroking a magnet against the object

A

Magnetizing by contact

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

A semiconductor device that produces light when a direct current is applied

A

(LED) light emitting diode

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

The line connecting all points where the compass needle points true North

A

Agonic line

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Imaginary line that circles Earth halfway between the two magnetic poles

A

Magnetic equator

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Final attraction Force between two charged objects when the distance is reduced by 1/5 of the original distance

A

25 times the original Force

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

Small relatively inexpensive computer design for use by one user at a time

A

(PC) personal computer

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

A large, extremely powerful computer design for rapidly performing complex calculations

A

Supercomputer

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

What allows a computer to communicate with the outside world or a user to communicate with the computer

A

Input/output device

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

What is the largest computer network

A

Internet

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

A single chip that contains a complete CPU

A

Microprocessor

23
Q

Type of computer memory that is used for temporary storage

A

RAM

24
Q

SI unit of electric charge

A

Coulomb

25
Q

what are the actual physical components of a computer called

A

Hardware

26
Q

Smallest directly accessible unit of data in a computer

A

Byte

27
Q

Electronic device that produces information using electrical circuits

A

Computer

28
Q

Processes a single binary output based on one or more binary input

A

Logic gates

29
Q

What uses a narrow strip of metal in a protective insulated case to limit current through a circuit

A

Fuse

30
Q

Electrical devices designed to add resistance to a circuit

A

Resistor

31
Q

What uses electromagnetic induction to produce electricity

A

Generator

32
Q

What produces a strong magnetic field when electricity passes through it

A

Electromagnet

33
Q

Simple device that converts electricity to back and forth motion

A

Solenoid

34
Q

Semiconductor device that can perform same functions a vacuum tube triode such as acting as a switch and amplifying weak signals

A

Transistor

35
Q

Increases or decreases the voltage of an alternating current using electromagnetic induction

A

Transformer

36
Q

Pieces of information stored in computers are called

A

Data

37
Q

An electrical switch operated by an electromagnetic is called

A

Relay

38
Q

Process that reduces an electric current in a vacuum using heated cathode

A

Thermionic emission

39
Q

Imaginary lines that indicate the direction and strength of a magnetic field

A

Lines of flux

40
Q

Electrostatic method of reproducing images on paper

A

Xerography (xerox)

41
Q

Stored information and set of instructions that direct a computer to perform certain tasks

A

Software

42
Q

Simple vacuum tube consisting of three electroids is a

A

Triode

43
Q

Process of replacing atoms of a semiconductor with atoms of another element

A

Doping

44
Q

Branch of the study of electricity that deals with the behavior and motion of electrons in a vacuum or a semiconductor

A

Electronics

45
Q

What is the rate of charge flow

A

Current

46
Q

Mod. t/f- type of data that can have any possible value within a specified range is DIGITAL data

A

False- ANALOG

47
Q

Mod. T/f- number system that is based on Powers of 16 is the BINARY number system

A

False- HEXADECIMAL SYSTEM

48
Q

Mod. t/f- semiconductor that lacks electrons is an N-TYPE semiconductor

A

False- P-TYPE

49
Q

Mod. t/f- Americans first mass produced computer is the ENIAC

A

False-UNIVAC

50
Q

Mod. t/f- substance that can be easily magnetized are considered magnetically HARD

A

False-SOFT

51
Q

Mod. t/f- most common type of transistor used today is the FIELD EFFECT transistor

A

TRUE

52
Q

Mod. t/f-Type of electrochemical cell that is not designed to be recharged is the VOLTAIC cell

A

TRUE

53
Q

Mod. t/f- positive terminal of the voltaic or storage cell contacts the cell’s CATHODE

A

TRUE

54
Q

Mod. t/f- large components designed to restore and retrieve vast amounts of information are MAINFRAMEcomputers

A

TRUE

Isabellas ch.9-12 sci.test (1 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions