WorksheetsScience 9 Test 8
Total questions: 39
Worksheet time: 21mins
What type of lamp uses a phosphor?
Incandescent Lamp
Fluorescent Lamp
Neon Lamp
Light Emitting Diode
What type of lamp produces light by heating a thin wire called a filament?
Incandescent Lamp
Fluorescent Lamp
Neon Lamp
Light Emitting Diode
What type of lamp produces light by passing a current through a noble gas such as neon or xenon?
Incandescent Lamp
Fluorescent Lamp
Neon Lamp
Light Emitting Diode
What type of lamp produces light when a direct current is applied to a semiconductor?
Incandescent Lamp
Fluorescent Lamp
Neon Lamp
Light Emitting Diode
What type of lamp was first used for common household use?
Incandescent Lamp
Fluorescent Lamp
Neon Lamp
Light Emitting Diode
What early device was designed by Musschenbroek for storing electricity?
Lightning Rod
Thunder Jar
Leyden Jar
Musschenbroek Capacitor
What type of generator has the drawback of requiring fluids moving at very high velocity?
AC generator
DC generator
MHD generator
Photovoltaic Cell
What device is an electrical switch operated by an electromagnet?
Loudspeaker
Solenoid
Telegraph
Relay
What device converts electricity into sound waves?
Loudspeaker
Telegraph
Relay
Solenoid
What device converts electricity into a simple back and forth motion?
Loudspeaker
Telegraph
Relay
Solenoid
What device uses electromagnets to allow for communication over long distances?
Relay
Telegraph
Solenoid
Loudspeaker
Who built the first electrostatic generator?
Otto von Guericke
Robert van de Graaff
Benjamin Franklin
Pierre van Musschenbroek
What is the stationary magnet inside a generator called?
Armature
Slip Rings
Commutator
Field Magnet
What device converts sunlight into electricity?
MHD generator
AC generator
DC generator
Photovoltaic Cell
Who demonstrated that lightning was formed from static electricity?
Otto von Guericke
Robert van de Graaff
Benjamin Franklin
Michael Faraday
What is the freely rotating electromagnet in a motor called?
Armature
Commutator
Field Magnet
Slip Ring
What is the name of the negative terminal of a battery?
(a)
What type of generator is a van de Graaff generator?
AC
DC
Electrostatic
MHD
What type of generator uses slip rings?
AC
DC
Electrostatic
MHD
Which of the following lamps is considered the most efficient?
Incandescent Lamp
Fluorescent Lamp
Neon Lamp
Light Emitting Diode
What is the most important device for converting electricity into motion?
Relay
Solenoid
Telegraph
Motor
What device uses two layers of foil separated by glass to store electricity?
Relay
Lightning Rod
Leyden Jar
London Jar
Who discovered electromagnetic induction?
Otto von Guericke
Robert Van de Graaff
Benjamin Franklin
Michael Faraday
What device increases or decreases the voltage of an alternating current?
Capacitor
Transformer
Generator
Motor
What device uses electromagnetic induction to produce electricity?
Electrochemical Cell
Photovoltaic Cell
Generator
Nuclear Reactor
What is the positive terminal of an electrochemical cell called?
(a)
Who invented the lightning rod?
Otto von Guericke
Michael Faraday
Benjamin Franklin
Musschenbroek
Which type of electrochemical cell is not designed to be recharged?
Faraday cell
Voltaic cell
Storage cell
Capacitor cell
Where does electric charge move to in an object?
Inside
Outside
Through the middle
All over
What type of generator uses a commutator?
Electrostatic
AC
DC
MHD
What type of lamp produces light by passing a current through mercury or argon gas?
Incandescent Lamp
Fluorescent Lamp
Neon Lamp
Light Emitting Diode
What method of printing uses static electricity to reproduce images on paper?
(a)
Who invented the telegraph?
Samuel Morse
Michael Faraday
Benjamin Franklin
Otto von Guericke
What phenomenon is also known as corona discharge?
Static electricity
St. Elmo's Fire
Plasma Ejection
St. Bartholomew's Fire
What device converts sunlight into electricity?
AC generator
MHD generator
Nuclear reactor
Photovoltaic cell
What device increases or decreases the voltage of an alternating current?
Relay
Solenoid
Transformer
Motor
What is the ability to convert mechanical motion into electrical energy?
Electromagnetic induction
Flux Induction
Mechanokinetic Induction
Magnetohydrodynamic induction
What device is used to protect buildings from lightning?
Grounding Rod
Lightning Rod
Static Rod
Leyden Rod
What type of lamp involves passing an electric current through a tube filled with mercury or argon gas?
Incandescent Lamp
Fluorescent Lamp
Neon Lamp
Light Emitting Diode
