Electricity

Question 1

Basic journey of electricity

Answer 1

Its created at a *generating station
Then sent off by high voltage wires, the voltage then reduced by a *substation. It then moves through smaller, lower voltage wires that can now service homes going through a circuit on a round trip.

Question 2

Whats a magnetic field

Answer 2

An invisible area where the effect of a magnetic material or force can be found

Question 3

Electro magnetic force is defined as?

Answer 3

The physical interaction that occurs between charged particles moving down a wire.

Question 4

Where is the effect of a magnetic material/force found?

Answer 4

The magnetic field

Question 5

Whats it called when interacting, charged particles move down a wire?

Answer 5

Electromagnetic force

Question 6

When a negative charge moves throughout a wire, it….?

Answer 6

Creates a magnetic field around the wire.

Question 7

How do you make a magnetic field around a wire?

Answer 7

Have negative charges (electrons) move through a wire.

Question 8

Changing the direction of the current flow changes the_____?

Answer 8

Direction of the magnetic field

Question 9

To change the direction of the magnetic field (essentialy the way/direction the magnetic field flows in) you__________?

Answer 9

Change the direction of the current flow. Instead of - to + it will now move + to -

Question 10

List ways the strength/size of the magnetic field can be changed.

Answer 10

1. switching material
2. shape of wire
3. voltage(not in notes)
4. more coils

Question 11

More coils create a _______

Answer 11

Stronger magnetic field

Question 12

Most common wire material used in an electromagnetic?

Answer 12

Copper: its easy to work with and hard to melt.

Question 13

Common core material?

Answer 13

Iron, partly due to its natural magnetic properties.Did you know it can be wrapped around air?

Question 14

A thicker wire can carry more ____

Answer 14

Current, the thicker the wire, the more current (electricity/voltage) it can handle

Question 15

The two basic steps if building an electromagnetic are?

Answer 15

1. wrap the copper wire in one direction around the metal core
2. connect the lose ends if your wire, there should be around 15 cm at the ends, to a battery/power supply.

Question 16

Wgat three things must a generator have?

Answer 16

permanent magnets (magnetic field), a coil wire, and a force that spins the coiled wire

Question 17

The more revelations that a wire coil has inside a magnetic field, the greater ____________.

Answer 17

The electrical current produced will be.

Question 18

What happens to an electrical current when the turbine spins faster?

Answer 18

The current will increase.

Question 19

A stronger magnet means?

Answer 19

A stronger magnetic field, which results in the capability to produce more current/electricity.