Deck 3: Electrical Sources and Static Charges

Question 1

One source of electricity is the ____ cell, or solar cell.

A) lead-acid
B) photovoltaic
C) static
D) nuclear

Answer 1

B

Question 2

The word static means ____.

A) no spark
B) no charge
C) no pressure
D) not moving

Answer 2

D

Question 3

The typical starting current for most automobiles will range from ____ amperes.

A) 50 to 100
B) 100 to 150
C) 150 to 200
D) 200 to 250

Answer 3

D

Question 4

Nickel-cadmium and nickel metal hydride cells have very similar operating characteristics.

Question 5

Most lightning discharges take place between different clouds.

Question 6

The amount of voltage produced by a thermocouple is very large.

Question 7

A battery with the ability to produce 5 amperes of current for 20 hours would have a rating of ____ amp-hours.

A) 4
B) 25
C) 100
D) 520

Question 8

Primary cells ____.

A) are never connected in series
B) cannot be recharged
C) should not be removed from a device when they are discharged
D) only come in one type

Question 9

When batteries are connected in series, their voltages will ____, and the amp-hour rating will ____.

A) add, remain the same
B) add, add
C) remain the same, add
D) remain the same, remain the same

Question 10

Voltaic cells can be divided into two basic types: ____.

A) large and small
B) primary and secondary
C) conductors and insulators
D) positive and negative

Question 11

Primary cells are often connected in series to increase the terminal voltage.

Question 12

Barium titanate can produce enough voltage and current to flash a small neon lamp when struck by a heavy object.

Question 13

Probably the most common type of secondary cell is the ____.

A) lead-acid
B) lithium-ion
C) nickel-metal hydride
D) nickel-cadmium

Question 14

____ cells exhibit a voltage of 3.6 volts per cell.

A) Lithium-ion
B) Nickel-cadmium
C) Nickel-metal hydride
D) Lead-acid

Question 15

Light is composed of particles called ____.

A) electrons
B) photons
C) semiconductors
D) ions

Question 16

When two dissimilar metals are joined at one end, and that junction is heated, a voltage is produced. This is called the ____ effect.

A) Lenzer
B) Ohmic
C) Fleming
D) Seebeck

Question 17

The current capacity (energy density) of cells is measured in ____.

A) watt-amps
B) ohm-watts
C) volt-hours
D) watt-hours

Question 18

The word piezo, pronounced pee-ay'-zo, is derived from the Greek word for ____.

A) current
B) light
C) pressure
D) electricity

Question 19

Voltaic cells can be constructed from virtually any two unlike metals and a(n) ____ of acid, alkaline, or salt solution.

A) photon
B) battery
C) electrolyte
D) semiconductor

Question 20

____ is without doubt the greatest display of a static electric discharge.

A) Lightning
B) A copy machine
C) Touching doorknobs
D) Air filtration