Deck 2: Electrical Fundamentals

Question 1

Which term means Coulombs/second?

A) Ohm
B) Ampere
C) Volt
D) Resistance

Answer 1

B

Question 2

What is the unit of measurement of resistance?

A) ohm
B) ampere
C) volt
D) coulomb

Answer 2

A

Question 3

Alternating current flows first in one direction and then in the other direction.

Answer 3

True

Question 4

One of the rules for electric charges is that the strength of the attraction or repulsion between charged objects is directly proportional to the distance between them.

Question 5

The nucleus of an atom is made up of protons, which have a positive charge and neutrons, which have a negative charge.

Question 6

Rubber and glass are good insulators.

Question 7

Applying pressure to certain crystals to produce voltage is known as the ____ effect.

A) photovoltaic
B) piezoelectric
C) thermoelectric
D) chemical

Question 8

The amount of current flowing through a circuit is ____ proportional to the electromotive force (voltage) and ____ proportional to the resistance of the circuit.

A) directly, inversely
B) inversely, directly
C) directly, directly
D) inversely, inversely

Question 9

Electrons orbit the nucleus of an atom in arranged rings called ____ .

A) spheres
B) ovals
C) shells
D) capsules

Question 10

The total current flowing in a circuit is equal to the total ____ applied to the circuit divided by the total ____ of the circuit.

A) voltage, current
B) resistance, current
C) resistance, voltage
D) voltage, resistance

Question 11

An electrostatic generator develops a voltage using ____.

A) induction
B) chemicals
C) friction
D) light

Question 12

Voltage is also known by which term?

A) electrical pressure
B) electromotive force
C) resistance
D) current pressure

Question 13

What is opposition to the flow of electrons called?

A) voltage
B) inductance
C) conductance
D) resistance

Question 14

Atoms that have from 1 to 4 electrons in their last, or outer, shell are generally good conductors of electricity.

Question 15

In order for an object to be in a charged state, which two particles must be in a state of imbalance?

A) protons and electrons
B) protons and neutrons
C) neutrons and electrons
D) atoms and molecules