Q.1

Electrons flow from negative to positive when a voltage is applied across a conductor.

  • True
  • False
Q.2

Voltage is the driving force that establishes the flow of current.

  • True
  • False
Q.3

The capacity of a battery cell is measured by the amount of __________ that can be supplied over time.

  • current
  • voltage
  • coulombs
  • joules
Q.4

A rheostat is ___.

  • a three-terminal device that controls current
  • a two-terminal device that controls current
  • a two-terminal device that divides voltage
  • a three-terminal device that divides voltage
Q.5

An open circuit allows current to flow.

  • True
  • False
Q.6

One coulomb of charge passing a point in one second is one ampere of current.

  • True
  • False
Q.7

In practical applications, battery voltage:

  • is restored as soon as disconnect occurs
  • is lowered as the load increases
  • may be stored indefinitely
  • will be reduced to zero as power is drawn
Q.8

Which is the smallest?

  • atom
  • proton
  • neutron
  • electron
Q.9

In practical applications, battery voltage:

  • is restored as soon as disconnect occurs
  • is lowered as the load increases
  • may be stored indefinitely
  • will be reduced to zero as power is drawn
Q.10

The unit of measurement for conductance is the coulomb.

  • True
  • False
Q.11

___ make electric current possible.

  • Protons
  • Neutrons
  • Shells
  • Free electrons
Q.12

The ___ is placed in series with the flow of current.

  • voltmeter
  • ammeter
  • ohmmeter
  • wattmeter


Q.13

If an electrical system is compared to a fluid system, the electrical current corresponds to the:

  • pressure
  • pump
  • water wheel
  • water flow
Q.14

A lead-acid battery is an example of a

  • solar cell
  • fuel cell
  • primary battery
  • secondary battery
Q.15

The atomic number of an atom equals the number of electrons orbiting the nucleus.

  • True
  • False
Q.16

A normally open push-button switch can carry current when not pushed.

  • True
  • False
Q.17

In which states may matter may be found?

  • solid, liquid, or mineral
  • solid, gas, or liquid
  • mineral, gas, or liquid
  • plastic, solid, or gas
Q.18

Which voltage source converts chemical energy to electrical energy?

  • Electrical generator
  • Battery
  • Solar cell
  • Electronic power supply
Q.19

What is a characteristic of a secondary cell?

  • rechargeability
  • not rechargeable
  • a dry cell
  • non-liquid
Q.20

What do you call a diagram that shows the electrical connections of a circuit's components?

  • A schematic diagram
  • A pictorial diagram
  • A block diagram
  • An electrical diagram
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