Getting Started

Question 1

How do positive and negative charges interact?

Answer 1

Like charges repel and unlike charges attract

Question 2

‘q’ stands for…

Answer 2

Charge

Question 3

The formula for current is…

Answer 3

q/sec

Question 4

Charge is defined as…

Answer 4

How many electrons move past in a second

Question 5

Current is defined as…

Answer 5

The direction in which positive charges are moving, i

Question 6

Who discovered the electron and when?

Answer 6

JJ Thompson, 1897

Question 7

Who decided the direction of current flow and when?

Answer 7

Benjamin Franklin, 1747

Question 8

What is power measured in?

Answer 8

Watts

Question 9

Voltage measures…

Answer 9

The energy transferred per unit of charge

Question 10

The formula for power is…

Answer 10

V x i

Question 11

Engineering notation is done how many digits at a time?

Answer 11

3

Question 12

10 to the 12th, 9th, 6th, and 3rd power

Answer 12

Tera, giga, mega, kilo

Question 13

10 to the negative 3rd, 6th, 9th, and 12th power

Answer 13

Milli, Micro, nano, and pico

Question 14

Frequency

Answer 14

Number of times something happens per second, measured in Hz

Question 15

Ampere

Answer 15

Measures current

Question 16

Coulomb

Answer 16

Measures charge, 1 coulomb = 1 ampere/sec

Question 17

Volt

Answer 17

Unit of electrical potential difference

Question 18

Ohm

Answer 18

Electrical unit of resistance

Question 19

What are the seven SI base units?

Answer 19

Meter, kilogram, sec, ampere, kelvin, candela, mole