Scienceeee Flashcards

1
Q

Substances which do allow electricity through are…..

A

Conductors

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2
Q

Some examples of conductors are….

A
Copper
Metal 
Aluminium 
Steel 
Silver
Gold
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3
Q

Where are metals good conductors?

A

The electrons are only weakly attracted to the nuclei of atoms

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4
Q

Substances which don’t allow electricity are called?

A

Insulators

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5
Q

Some examples of insulators are?

A
Plastic
Wood 
Rubber 
Air 
Porcelain
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6
Q

The electrons in insulators are…

A

Strongly attached to the nuclei of the atoms

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7
Q

A pathway for electricity is called…

A

Circuit

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8
Q

What does a switch do?

A

It lets you open and close a circuit

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9
Q

The movement of electrons in a circuit is called?

A

Electric current

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10
Q

The more current flowing through a circuit the …… the bulb glows

A

More

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11
Q

If the resistance in a circuit increases the current gets…..

A

Smaller

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12
Q

A conductor has a …. resistance

A

Low

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13
Q

Bulb

A

Circle with a cross

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14
Q

Switch

A

Lines with circles

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15
Q

The current is measured using a..

A

Anmeter

Measures the amount of electrons per second

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16
Q

what is a current measured in?

17
Q

How fast the electrons moving through is called an ….

18
Q

In a Series circuit the current…..

A

Is the same at all points

19
Q

in a parallel circuit the current is….

A

Split between each

20
Q

The voltage is measured in…

21
Q

What do u measure volts in…

22
Q

Series circuit

Voltage:
Current:

A

Spilts

Stays the same

23
Q

Parallel circuit

Voltage:
Current:

A

Stays the same

Splits

24
Q

What is an electric current?

A

The movement of electrons in a wire

25
Hat does it mean when one bulb goes out but others dont?
Each lightbulb has a different pathway to the battery | Parallel Circuit
26
If you add more bulbs to a parallel circuit the....
- Resistance decreases | - Current Increases
27
Conductors have.... resistance
Low
28
What is resistance?
- opposite to electric current - measured in Omphs - short circuit is with low resistance
29
What is voltage?
It motivates the flow and current.
30
If you add a bulb to a series circuit....
- resistance increases | - current decreases
31
How do you know if its a parallel circuit?
Multiple pathways
32
in a series circuit if one lamp unscrews what happens to the others?
Goes out
33
Anmeters are only used in series circuits?
True
34
Where are Parallel circuits used?
In homes, this is by cutting electricity off one thing but others still remaining with electricity
35
Series or parallel in iPads?
Parallel
36
What appliances require series circuits?
Lamps, freezers and refrigerators
37
IF YOU INCREASE ETHE VOLTAGE THE CURRENT
INCREASES
38
IF YOU INCREASE THE RESITANCE THE CURRENT
DECREASES