# Can You Pass This Hardest Electricity Trivia Quiz?

40 Questions | Total Attempts: 97  Settings  .

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• 1.
Concerning the flow of electricity, materials such as rubber, glass, and dry wood are known as
• A.

Conductors

• B.

Insulators

• C.

Thermocouples

• D.

D electric cells

• 2.
Dry wood makes a good conductor.
• A.

True

• B.

False

• 3.
A ______ is the fundamental unit of a battery.
• A.

Watt

• B.

Thermocouple

• C.

Cell

• D.

None of the above answers are correct.

• 4.
Ohm's law may be expressed as an equation I=E/R, where "E" represents:
• A.

Resistance in ohms.

• B.

Voltage in volts

• C.

Current in amperes.

• D.

None of the answers are correct.

• 5.
Ohm's law may be expressed as an equation I=E/R, where "R" represents:
• A.

Resistance in ohms.

• B.

Voltage in volts.

• C.

Current in amperes.

• D.

None of the answers are correct.

• 6.
When the voltage is doubled, power is
• A.

Tripled

• B.

Halved

• C.

Doubled

• D.

Doubled twice

• 7.
The study of electricity began with the ancient___________
• A.

Egyptians

• B.

Jews

• C.

Greeks

• D.

Europeans

• 8.
Charged atoms are called_________
• A.

Ohms

• B.

Conductors

• C.

Photoelectrons

• D.

Ions

• 9.
The flow of electrical energy through a conductor is called
• A.

an electric charge

• B.

Electric current, or electricity.

• C.

a negative charge.

• D.

a unit of conductance.

• 10.
Material that permits the free movement of a large number of electrons, such as copper wire, is known as a good
• A.

Conductor of electricity.

• B.

Insulator of electricity.

• C.

Example of electrolytic action.

• D.

Electromotive force.

• 11.
N order, the best conductors of electricity are
• A.

copper, aluminum, and silver wire.

• B.

aluminum, copper and silver wire.

• C.

Copper, silver, and aluminum wire.

• D.

Silver, copper, and aluminum wire.

• 12.
Electromotive force may be produced by
• A.

Friction and pressure.

• B.

Heat and light.

• C.

Chemical action and magnetism.

• D.

All of the answers are correct.

• 13.
The true cause of electricity was found with the development of
• A.

Charged particles.

• B.

Atomic theory of matter.

• C.

Static electricity.

• D.

Protons.

• 14.
A substance that has few free electrons is called
• A.

Ionic.

• B.

An insulator.

• C.

A conductor.

• D.

Electron is deficient.

• 15.
A common name for the voltage produced by rubbing two materials together is
• A.

Static electricity.

• B.

Friction.

• C.

Dynamic charge

• D.

Dry charge. Dry charge.

• 16.
Wires in an electric circuit are designed to keep
• A.

electrical resistance high.

• B.

Electrical current low.

• C.

electrical resistance low.

• D.

Distance from source voltage to load as far as possible.

• 17.
A significant feature of a battery composed of secondary cells such as an automobile battery is that it is
• A.

cheap.

• B.

Light.

• C.

Rechargeable.

• D.

None of the answers are correct.

• 18.
The direction of electron movement in any conductor is
• A.

From negative potential to positive potential.

• B.

From positive potential to negative potential.

• C.

between like charges.

• D.

in orbit around their nuclei.

• 19.
Which of the following kinds of waves can be felt by human beings?
• A.

Vibrations

• B.

• C.

• D.

Light

• 20.
The ___________ is the length of a cycle expressed in distance units.
• A.

Frequency

• B.

Amplitude

• C.

Wave length

• D.

Cycle

• 21.
The __________ is the number of cycles repeated during one second of time.
• A.

Frequency

• B.

Amplitude

• C.

Speed

• D.

Cycle

• 22.
The __________ is the wave strength at particular points along with the wave.
• A.

Frequency

• B.

Amplitude

• C.

Wave length

• D.

Cycle

• 23.
________occurs when there is a change in the density or atmosphere in which the wave is
• A.

Trapping

• B.

Diffraction

• C.

Refraction

• D.

Reflection

• 24.
• A.

Trapping

• B.

Diffraction

• C.

Refraction

• D.

Reflection

• 25.
• A.

Trapping

• B.

Diffraction

• C.

Refraction

• D.

Reflection