Electricity

Question 1

What is the law of electric charges

Answer 1

• Objects that have opposite charges attract one another.

- Objects with the same charges repel one another.

Question 2

Definition of charging by friction

Answer 2

Charging by friction the transfer of electrons between two neutral objects (made from different materials) that occurs when they are rubbed together or come in contact.

Question 3

Definition of charging by conduction

Answer 3

Charging by conduction (Contact) 2 objects with different charges come in contact and electrons are transferred

Question 4

Definition of charging by induction

Answer 4

Charging by induction charging a neutral object by bringing another charged object close to, but not touching, the neutral object

Question 5

What’s static electricity?

Answer 5

Static electricity is an imbalance of electric charge on the surface of an object

Question 6

What’s static shock?

Answer 6

Static shock when electrons flow through you to get to the ground

Question 7

What’s amperes?

Answer 7

Amperes (A) the amount of current flowing through the wire in a given time

Current flowing through the wire in a given time

Question 8

What is a conductor?

Answer 8

Conductor a material that lets electrons move easily through it

Question 9

What is an electric circuit?

Answer 9

Electric circuit a continuous path in which electrons can flow

Question 10

What is an electric current?

Answer 10

Electric current a measure of the rate of electron flow past a given point in a circuit measured in amperes

Question 11

What is a load?

Answer 11

Load the part of an electric circuit that converts electrical energy into other forms of energy
Eg a bulb

Question 12

What is the potential difference?

Answer 12

Potential difference the difference in electrical potential energy per unit charge measured at two different points measured in volts

Measuring the change in energy carried per charge in some parts of the circuit measured in volts

Question 13

What is a source?

Answer 13

Source Its job is to supply electrons (electricity)

Source where the electricity is created
Eg a battery

Question 14

What’s a switch?

Answer 14

Switch device in an electric circuit that controls the flow of electrons by opening (or closing) the circuit

Question 15

What’s a resistor?

Answer 15

Resistor device that reduces the flow of electric current

Question 16

What ohms law?

Answer 16

Ohm’s Law is the relationship between voltage and current.

Question 17

Why does lighting occur?

Answer 17

Lightning is an electric discharge that occurs between clouds or between clouds and the ground.

Question 18

What is grounding?

Answer 18

grounding connecting an object to a large body, like Earth, that is capable of effectively removing an electric charge that the object might have

Question 19

What’s a conductor?

Answer 19

Conductor (wire) a material that lets electrons move easily through it

Question 20

Definition of Voltage

Answer 20

Is like the amount of pressure causing the current to flow through a wire

Pressure causing current to flow

Question 21

Definition of current

Answer 21

Flow of electrons passing certain point in a circuit in a particular period of time

Flow of electrons at a time and spot

Question 22

Definition of resistance

Answer 22

Ability of the source to produce current

Counteracts ability of the source to create current

Question 23

Advantages to parallel circuits

Answer 23

• Light bulbs are brighter
• One goes out the rest stay on
• Can turn on (off) one at a time

Question 24

Advantages of series circuits

Answer 24

• Less wiring

- More battery life

Question 25

What’s the triangle to figure out voltage, current and resistance?

Answer 25

V

I R

Question 26

If current or resistance goes up voltage must go…

Answer 26

Up

Question 27

If current goes up resistance goes…

Answer 27

Down

Question 28

If resistance goes up current must go…

Answer 28

Down