Devices

Question 1

Device which sends electrical signals in one direction

Answer 1

Diode (Rectifier)

Question 2

Invented by: William Shockley, John Bardeen & Walter Brattain in 1947. A semiconductor device used to amplify and switch electronic signals and power

Answer 2

Transistor

Question 3

Machine which turns mechancal engery into direct current electric energy

Answer 3

DC Generator

Question 4

a static electrical device which transfers energy by inductive couplin by its winding circuits; changes the size of electrical output

Answer 4

Transformer

Question 5

Increase the over all strength of a signal

Answer 5

Amplifier

Answer 6

Oscillator

Question 7

Stores energy in a magnetic field which limits the maximum range of current passing through it

Answer 7

Inductor

Question 8

Slows down electrons in a nuclear reactor

Answer 8

Moderator

Question 9

Instrument that measures radiation output.

Answer 9

Geiger counter

Question 10

An instrument for measuring the magnitude and direction of pressure

Answer 10

Piezometer

Question 11

Invented by Ernest Lawrence, of the University of California, Berkeley in 1932: Used to accelerate charged particles

Answer 11

Cyclotron

Question 12

Invented by Edwin McMillan which accelerates the magnetic field and the electric field and are carefully synchronised with the travelling particle beam

Answer 12

Syncrotron

Answer 13

Cosmotron

Question 14

Device invented in 1952 by Donald Glaser, used for detecting ionizing radiation

Answer 14

Bubble Chamber

Answer 15

Pendulum

Question 16

Device which tranfers energy between locations in order to perform a specific function

Answer 16

Machine

Question 17

Name given to any device used to produce a parallel beam of radiation

Answer 17

Collimator

Question 18

Speed of rotation

Answer 18

tachometer

Question 19

Measures Speed of moving object

Answer 19

speedometer

Question 20

Acceleration

Answer 20

accelerometer

Question 21

Mass

Answer 21

balance, katharometer

Question 22

Linear momentum

Answer 22

ballistic pendulum

Question 23

Force

Answer 23

force gauge, tribometer

Question 24

Wind speed

Answer 24

anemometer

Question 25

Pressure

Answer 25

barometer, manometer

Question 26

Angular velocity

Answer 26

stroboscope, tachometer

Question 27

Torque

Answer 27

dynamometer, torque wrench

Question 28

device for measuring or maintaining orientation, based on the principles of angular momentum

Answer 28

gyroscope

Question 29

Electric current

Answer 29

ammeter,

Question 30

Voltage

Answer 30

voltmeter, oscilloscope

Question 31

Resistance

Answer 31

ohmmeter

Question 32

Electric capacitance

Answer 32

capacitance meter

Question 33

Electric inductance

Answer 33

inductance meter

Question 34

Electric power

Answer 34

wattmeter

Question 35

Electric field

Answer 35

field mill

Question 36

Magnetic field

Answer 36

magnetometer

Question 37

Hardness of a solid

Answer 37

durometer

Question 38

Viscosity of a fluid

Answer 38

viscometer, rheometer

Question 39

Optical activity

Answer 39

polarimeter

Question 40

Surface tension of liquids

Answer 40

tensiometer

Question 41

Magnetic susceptibility

Answer 41

gouy balance

Question 42

Humidity

Answer 42

hygrometer, lysimeter

Question 43

Illuminance

Answer 43

lux meter, photometer

Question 44

Smell

Answer 44

olfactometer

Question 45

Instrument used by surveyors to measure angles on horizontal planes

Answer 45

Theodolite

Question 46

Devices that change energy from one form to another

Answer 46

Transducer

Question 47

Transfer energy with a changing voltage between output and input

Answer 47

Voltage Transformer

Question 48

A device who's resistance falls as temperature rises

Answer 48

Thermister

Question 49

Used to measure fluid pressure

Answer 49

Manometer

Question 50

Used for measuring very small current

Answer 50

galvanometer

Question 51

Device which changes the direction of the flow of current in a circuit

Answer 51

Swicth

Question 52

A device that allows only one type of radiation to pass

Answer 52

Monochrometer

Question 53

Device that measures distance on a map

Answer 53

Opisometer

Question 54

Measure the precice radius of sphere

Answer 54

Spherometer