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Year 8 Science > Circuits And Magnetism > Flashcards

Circuits And Magnetism Flashcards

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1
Q

Parallel circuit

A

A circuit with two or more loops in it

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2
Q

Series circuit

A

A circuit where everything is on the same loop

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3
Q

Amps is for

A

Current

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4
Q

Ohm is for

A

Resistance

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5
Q

Volts is for

A

Potential difference

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6
Q

You can measure current with a…

A

Ammeter

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7
Q

You can measure potential difference with a…

A

Voltmetre

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8
Q

Electrons are

A

Negative

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9
Q

Protons are…

A

Positive

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10
Q

Neutrons are…

A

Neutral (no charge)

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11
Q

A battery is also known as…

A

A cell

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12
Q

Is a parallel circuit, the current…

A

Stays the same the whole way through the circuit and is split out evenly between the components.

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13
Q

In parallel circuits the current…

A

Splits off evenly between the two loops

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14
Q

Advantages of parallel circuits

A

Is one bulb goes out on one loop, all the others on separate loops stay on

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15
Q

Disadvantage if series circuit

A

If one bulb blows they all blow

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16
Q

What is a magnetic field

A

The area in which a magnet can reach to attract or repel another magnetic object

17
Q

Advantages of an electromagnet…

A

You can turn them off

They can be made more powerful than bar magnets

18
Q

Two types of magnet

A

Bar magnet

Electro magnet

19
Q

What does an electromagnet need?

A

Current
An iron bar
Coils of wire

20
Q

Magnetic objects

A

Iron
Nickel
Colbat

21
Q

What does a circuit need to work

A

A battery
A bulb
A closed circuit

22
Q

Potential difference is measured in parallel circuits because…

A

The only time the pd is different is when it is in a parallel circuit as it’s always the same in a series

23
Q

Like forces

A

Repel

24
Q

Opposite forces

A

Attract

25
Q

A compass…

A

Points in the direction that the magnetic field is pointing and where it will go. You can use them to fond the magnetic field

26
Q

You can increase the charge in an electromagnet by…

A

Adding more current

Adding more coils to the wire

27
Q

Magnets are made of

A

Domains

28
Q

Potential difference is measured in parallel circuits because…

A

The only time the pd is different is when it is in a parallel circuit as it’s always the same in a series

29
Q

Like forces

A

Repel

30
Q

Opposite forces

A

Attract

31
Q

A compass…

A

Points in the direction that the magnetic field is pointing and where it will go. You can use them to fond the magnetic field

32
Q

You can increase the charge in an electromagnet by…

A

Adding more current

Adding more coils to the wire

33
Q

Magnets are made of

A

Domains

Year 8 Science (5 decks)

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