Fundamentals

Question 1

A battery is essentially a _____ _____.

Answer 1

Power source

Question 2

The potential of something to do work.

Answer 2

Energy

Question 3

This determines how much current is pulled from/for (certain portions of) the current.

Answer 3

Resistor

Question 4

What is the base unit of resistors/resistance?

Answer 4

Ohm

Question 5

Varying resistor values/strengths are typically denoted by…

Answer 5

different colored bands on the resistor.

Question 6

This device stores electric charge for some time and then, at a later time, its charge is steadily pulled upon or bled out, such as to feed another part of the circuit.

Answer 6

Capacitor

Question 7

A Farad (F) is the base unit of a…

Answer 7

Capacitor

Question 8

The two plates of a capacitor should…

Answer 8

NEVER touch.

Question 9

The two plates of a capacitor are often covered with a _____ _____.

Answer 9

non-conductive material

Question 10

What is the base unit of an inductor?

Answer 10

Henry (H)

Question 11

An inductor _______ a magnetic field to make it stronger, so that even more energy can be stores inside that magnetic field.

Answer 11

concentrates

Question 12

Magnetic fields of an inductor increase with the _____ _ _____.

Answer 12

amount of coils

Question 13

What is the main difference between inductors and capacitors?

Answer 13

Inductors store a magnetic field, while capacitors store an electric field.

Question 14

What is the purpose of a diode?

Answer 14

It makes it so that the electric current only flows in one direction.

Question 15

In a diagram that features a diode, the current flows in the direction that the….

Answer 15

triangle/arrow is pointing.

Question 16

What does LED stand for?

Answer 16

Light-emitting diode

Question 17

What is a transistor’s 2 main functions?

Answer 17

1. Act as an on/off switch

2. Act as an amplifier

Question 18

A transformer allows a _____ to be increased or decreased inside of a circuit.

Answer 18

voltage

Question 19

Transformers affect the size of what?

Answer 19

a magnetic field

Question 20

These are commonly used to keep electronics and sound technology from “blowing out”

Answer 20

Transformers

Question 21

This is a closed loop that carriers electricity

Answer 21

Circuit

Question 22

Current is….

Answer 22

the flow of electronics in a circuit

Question 23

Electrons always have a _____ charge.

Answer 23

Negative

Question 24

This describes the equal and opposite number of positive charges going in the opposite direction of the electric current.

Answer 24

the “hole current”

Question 25

what is the mathematical/engineering symbol used for the hole current in calculations?

Answer 25

i

Question 26

What is the base unit for current?

Answer 26

Amperes or “A”

Question 27

Amps = ______/seconds

Answer 27

Coulumbs

Question 28

Define voltage

Answer 28

The “push”/source that CAUSES the current to flow.

Question 29

This opposes the current flow in a circuit.

Answer 29

Resistance

Question 30

When it comes to measuring resistance, the more ohms….

Answer 30

the more resistance to the current flow.

Question 31

DC stands for the…

Answer 31

direct current

Question 32

What is a prime example of direct current?

Answer 32

a battery

Question 33

AC stands for…

Answer 33

alternating current

Question 34

In this current, the directions of the current alternative such as in a wave or pendulum

Answer 34

Alternating current

Question 35

“Somewhere along the path, the circuit is broken.” This describes a _____ ______

Answer 35

open circuit

Question 36

What is a prime example of an open circuit?

Answer 36

Light switch

Question 37

What is a prime example of an alternating current?

Answer 37

a wall socket

Question 38

When electricity goes through a wire that creates an unintended path of least resistance in a larger system, we call this a

Answer 38

short circuit

Question 39

Electricity always chooses the ____ _ _____ ______.

Answer 39

path of least resistance.