Electrical circuit

Question 1

What does an electrical circuit need?

Answer 1

Power / Battery/ Conducting wires/ Resistors/ Switch

Question 2

What is a circuit?

Answer 2

A circuit is a closed loop that carries electricity

Question 3

What is an electric current?

Answer 3

• The flow and movement of electrons in a circuit.
• Protons move in the opposite direction to electrons
• An electrical charge is measured in coulombs

Question 4

i represent?

Answer 4

Electricals current

Question 5

Voltage?

Answer 5

This is a measure of the amount of energy the battery gives to a circuit.

Question 6

What is the unit for Voltage

Answer 6

V

Question 7

What is a Resistor?

Answer 7

A resistor opposes current flow in a circuit

Question 8

what is DC?

Answer 8

Constant current flow

Question 9

What is AC?

Answer 9

Alternating current - Current moves back and forth

Question 10

what is an Electrical charge?

Answer 10

electric charge is carried by the electrons and protons within an atom. Electrons are said to carry a negative charge, while protons are said to carry a positive charge

Question 11

What is a conductor?

Answer 11

Substances that can easily transfer electric charge

Question 12

What is an insulator?

Answer 12

Substances that do not carry an electrical charge

Question 13

What is coulomb law?

Answer 13

A formula that could predict the force of electrostatic force of attraction or repel

Question 14

How is an electrical current measured?

Answer 14

An electrical current of the closed-circuit is measured using a device called an ammeter. Ammeters have to be connected in series directly into the circuit.

Question 15

What is Energy (E) measured in?

Answer 15

Energy is measured in joules

Question 16

How is voltage related to electrical energy?

Answer 16

Voltage is the measure of energy pair unit charge

Energy per Coulomb of charge is = 1volt

Question 17

( water running through pipe) What represents the voltage in this situation?

Answer 17

The amount of water pressure pushing the water through the pipe. The units could be PSI or Pascals

Question 18

Water model

Answer 18

Electrical charge is the water being pumped through a pipe system.
Water can not be compressed just like an electric current

Question 19

Bicycle Model

Answer 19

Paddles are like the batteries of an electric charge
- Power in the feet is like the voltage
-electric effects are nearly instantaneous NO DELAY
a charge can not be used up or consumed

Question 20

Examples of DC

Answer 20

Batteries

Question 21

Example of AC

Answer 21

Fans and house power socket

Question 22

How is static electricity produced?

Answer 22

Static electricity is the result of an imbalance between negative and positive charges in an object

Question 23

How are energy and current caused?

Answer 23

The flow of electrons

Question 24

How is the charge measured?

Answer 24

An electrical charge is measured in coulombs Qc

Question 25

What is static electricity?

Answer 25

The charge can only be transferred

Static electricity is the build-up of charges on a surface

Question 26

Unit for time

Answer 26

time is measured in seconds

Question 27

Potential difference,
Electromotive force,
Potential drop

Answer 27

Voltage

Question 28

Like charges

Answer 28

Repel

Question 29

opposit charges

Answer 29

Attract