Electrical Circuits And Magnetism

Question 1

Nylon creates static, what would happen if you wear it at a petrol station?

Answer 1

Catch fire

Question 2

What is the symbol for a wire?

Answer 2

Straight line

Question 3

What does a series circuit have?

Answer 3

Has all the components joined in a loop

Question 4

What are parallel circuits like?

Answer 4

The rungs of a ladder

Question 5

What do parallel circuits let you do?

Answer 5

Switch components on and off independently. This is house lights in a house work.

Question 6

What units are used for voltage?

Answer 6

Volts

Question 7

What unit is used for current?

Answer 7

Amps (A)

Question 8

What is current?

Answer 8

The flow of electrons

Question 9

What determines how fast the flow of electrons

Answer 9

The energy from the battery

Question 10

How can you measure the amount of electric currents in a circuit?

Answer 10

Ammeter

Question 11

How is ammeter connected

Answer 11

In series

Question 12

What does voltage mean?

Answer 12

How hard batteries push the electrons around a circuit

Question 13

How is voltage measured?

Answer 13

With a voltmeter

Question 14

How are voltmeters attached?

Answer 14

In parallel

Question 15

How are components connected in a series circuit

Answer 15

In one loop

Question 16

How do you use a voltmeter

Answer 16

Attach it across the components (in parallel)

Question 17

What do the voltages in a series circuit add up to?

Answer 17

The battery voltage

Question 18

In an experiment, the higher the number of bulbs means…

Answer 18

The higher the resistance

Question 19

The higher the resistance …

Answer 19

The lower the current

Question 20

What can a resistor do?

Answer 20

Change what happens to the current in a circuit

Question 21

What is resistance measured in?

Answer 21

Ohms

Question 22

What happens as resistance increases?

Answer 22

The current decreases

Question 23

What is a magnet?

Answer 23

A material or object that produces a magnetic field

Question 24

Can you see a magnetic field?

Answer 24

No, it is invisible

Question 25

What do magnets have?

Answer 25

A north and south pole

Question 26

What can magnetism do?

Answer 26

Attract magnetic objects or push them away

Question 27

How are electromagnets created

Answer 27

By an electric current running through a surrounding coil

Question 28

Give an example use of an electromagnetic

Answer 28

The generation of electricity in hydroelectric dams

Question 29

What three things will the strength of the electromagnet depend on?

Answer 29

Number of turns on the coil of wire around the core Strength of the current applied The material of the coil

Question 30

What should the circuit for a simple electromagnet always have?

Answer 30

A switch to prevent it overheating

Question 31

Magnets can be found in many areas of everyday life. Name five.

Answer 31

``` Washing machines Generators Electric motors Loudspeakers Computer hard drives Magnetic audio Videotapes ```

Question 32

Name three magnetic metals

Answer 32

Iron Nickel Cobalt

Question 33

Name the famous scientists... Alessandro

Answer 33

Volta

Question 34

Name the famous scientists... Andre-Marie

Answer 34

Ampere

Question 35

Name the famous scientists... Georg

Answer 35

Ohm

Question 36

Can you see a magnetic field?

Answer 36

No, it is invisible

Question 37

What do magnets have?

Answer 37

A north and south pole

Question 38

What can magnetism do?

Answer 38

Attract magnetic objects or push them away

Question 39

How are electromagnets created

Answer 39

By an electric current running through a surrounding coil

Question 40

Give an example use of an electromagnetic

Answer 40

The generation of electricity in hydroelectric dams

Question 41

What three things will the strength of the electromagnet depend on?

Answer 41

Number of turns on the coil of wire around the core Strength of the current applied The material of the coil

Question 42

What should the circuit for a simple electromagnet always have?

Answer 42

A switch to prevent it overheating

Question 43

Magnets can be found in many areas of everyday life. Name five.

Answer 43

``` Washing machines Generators Electric motors Loudspeakers Computer hard drives Magnetic audio Videotapes ```

Question 44

Name three magnetic metals

Answer 44

Iron Nickel Cobalt

Question 45

Name the famous scientists... Alessandro

Answer 45

Volta

Question 46

Name the famous scientists... Andre-Marie

Answer 46

Ampere

Question 47

Name the famous scientists... Georg

Answer 47

Ohm