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Grade 9 Electricity Unit > Grade 9 Electricity Unit > Flashcards

Grade 9 Electricity Unit Flashcards

1
Q

What is a circuit?

A

A path in which electrons flow

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2
Q

What is a circuit diagram?

A

A diagram of a circuit including the Standard symbols this is most commonly drawn out

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3
Q

What is a circuit symbol?

A

The symbols used in a circuit diagram to represent certain objects

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4
Q

What is a conductor?

A

A material that allows electrons to pass through it

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5
Q

What is current electricity

A

The controlled flow of electrons through a conductor

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6
Q

What is electricity generating?

A

Electricity being generated through a renewable or non renewable resource

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7
Q

What is an electron?

A

A negatively charged particle in the atom

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8
Q

What is an insulator

A

A material that prohibits the flow of electrons

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9
Q

What is a kilowatt hour

A

The unit of measure for electrical energy usage

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10
Q

What is an ammeter?

A

A device used to measure electric current

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11
Q

What is lightning?

A

A discharge of static electricity

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12
Q

What is a load?

A

part of a circuit that uses the electrical energy to create other forms of electricity

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13
Q

What is ohms law?

A

Straight line relationship between voltage and current(R=V\I

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14
Q

What is a parallel circuit.

A

When there are two or more paths for electrons to travel

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15
Q

What is a resistor

A

a device that reduces the flow of electric current

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16
Q

What is a series circuit

A

A circuit in which there is only one path for electrons to flow

17
Q

What is static electricity?

A

An imbalance of electric charge in an object

18
Q

What is voltage?

A

Electrical potential difference

19
Q

Voltmeter?

A

A device used to measure PD

20
Q

How can a comb become charged?

A

If your hair Carries a charge and the comb is neutral, the come will contract a charge

21
Q

What is charging by induction?

A

When a charged object is brought close to a neutral object

22
Q

What would happen if two - charged objects were brought close to eachother?

A

They would repel

23
Q

What device can you use to identify whether a static charge is present?

A

A metal leaf meter

24
Q

What is AC

A

Alternating current, the current moves back and forth alternating direction

25
Q

What is DC?

A

Direct current, flow on one path

26
Q

What is the difference between AC and DC

A

AC alternates its direction of flow but DC flow in one straight path

27
Q

Why is friction needed to charge an object?

A

If you rub an object that is neutral against an object that is charged - the object becomes charged

Grade 9 Electricity Unit (1 decks)

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