ABEKA SCIENCE MATTER AND ENERGY TEST 9 || A+
GUARANTEED.
What early device was developed to store electric charge? correct answers Leyden jar
What is the general term for a device that transforms the energy of an electric current into
another useful form of energy? correct answers load
What is the SI unit of resistance? correct answers ohm
What device consists of one or more electrochemical cells connected as a single source of
current? correct answers battery
What device converts pulses of electricity into sound waves? correct answers loudspeaker
What communication device uses electromagnets to reproduce messages by means of audible
clicks? correct answers telegraph
What is a material that allows current to flow through it with no resistance? correct answers
superconductor
Who built the first electrostatic generator? correct answers Otto von Guericke
What is the transfer of an electric charge by direct contact between objects? correct answers
conduction
10. What do the lines of flux demonstrate in the image below? correct answers The magnets have
unlike poles together.
, What device converts absorbed sunlight directly into electricity? correct answers photovoltaic
cell
What type of generator works by passing a conducting fluid through a magnetic field? correct
answers magnetohydrodynamic generator
What is an electric field with even strength throughout? correct answers uniform field
What is the method of magnetism in which an object is permanently magnetized by stroking a
magnet against the object? correct answers magnetism by contact
What is a semiconductor device that produces light when a direct current is applied? correct
answers light-emitting diode
What are the imaginary lines that indicate the direction and strength of a magnetic field called?
correct answers lines of flux
What electronic device processes information using electric circuits? correct answers computer
What is the electrostatic method of reproducing images on paper? correct answers xerography
What is a device that produces a single binary output based on one or more binary inputs?
correct answers logic gate
What device uses a narrow strip of metal in a protective, insulated case to limit current through a
circuit? correct answers fuse
What is an electrical switch operated by an electromagnet called? correct answers relay
GUARANTEED.
What early device was developed to store electric charge? correct answers Leyden jar
What is the general term for a device that transforms the energy of an electric current into
another useful form of energy? correct answers load
What is the SI unit of resistance? correct answers ohm
What device consists of one or more electrochemical cells connected as a single source of
current? correct answers battery
What device converts pulses of electricity into sound waves? correct answers loudspeaker
What communication device uses electromagnets to reproduce messages by means of audible
clicks? correct answers telegraph
What is a material that allows current to flow through it with no resistance? correct answers
superconductor
Who built the first electrostatic generator? correct answers Otto von Guericke
What is the transfer of an electric charge by direct contact between objects? correct answers
conduction
10. What do the lines of flux demonstrate in the image below? correct answers The magnets have
unlike poles together.
, What device converts absorbed sunlight directly into electricity? correct answers photovoltaic
cell
What type of generator works by passing a conducting fluid through a magnetic field? correct
answers magnetohydrodynamic generator
What is an electric field with even strength throughout? correct answers uniform field
What is the method of magnetism in which an object is permanently magnetized by stroking a
magnet against the object? correct answers magnetism by contact
What is a semiconductor device that produces light when a direct current is applied? correct
answers light-emitting diode
What are the imaginary lines that indicate the direction and strength of a magnetic field called?
correct answers lines of flux
What electronic device processes information using electric circuits? correct answers computer
What is the electrostatic method of reproducing images on paper? correct answers xerography
What is a device that produces a single binary output based on one or more binary inputs?
correct answers logic gate
What device uses a narrow strip of metal in a protective, insulated case to limit current through a
circuit? correct answers fuse
What is an electrical switch operated by an electromagnet called? correct answers relay
