Voltage, Current & Resistance

Question 1

What is electric potential difference?

Answer 1

The change in potential energy per coulomb of charge

Question 2

What is voltage?

Answer 2

The common name for electric potential difference

Question 3

What is voltage measured in and what do you use to measure voltage?

Answer 3

Volts (V), voltmeter

Question 4

What is kinetic energy?

Answer 4

Energy a moving object has because of its motion

Question 5

What is potential energy?

Answer 5

The energy stored in an object

Question 6

What is current electricity?

Answer 6

the flow of charged particles in a complete circuit

Question 7

What is the unit of measure for current and what do you use to measure current?

Answer 7

Amperes (A), which is defined as one coulomb of charge passing a given point per second.
An ammeter is used to measure current.

Question 8

What is an electric load?

Answer 8

Any device that transforms electrical energy into other forms of energy

Question 9

What is resistance?

Answer 9

Slows down the flow of electrons and transforms electrical energy

Question 10

What is resistance measured in and what do you use to measure resistance?

Answer 10

Ohms, ohmmeter

Question 11

What is ohms law?

Answer 11

The law that states the relationship of voltage, current and resistance

Question 12

What is the formula of ohms law?

Answer 12

V = IR
Voltage = Amperes x Resistance

Question 13

What do the stripes on a resistor indicate?

Answer 13

1st stripe = first digit
2nd stripe = second digit
3rd stripe = multiplier ( x 10^x)
4th stripe = accuracy (%)

Question 14

What is the number order of the colors for resistors?

Answer 14

Black = 0
Brown = 1
Red = 2
Orange = 3
Yellow = 4
Green = 5
Blue = 6
Violet = 7
Grey = 8
White = 9