The Pixi Machine
The Barkhausen Effect
Alternating Current
MRI
Electric Meter
100

Name one of the materials used to operate this machine.

Wire coils, magnets, cylinder, and copper wires

100

Who invented this

Heinrich Barkhausen

100

Who discovered this 

Nicola Tesla

100

When was it created

1977-1978

100

Who discovered it

Thomas Edison

200

Who invented the pixi machine?

Micheal Faraday

200
Name two materials used to make this 

Iron core, wire coil, amplifier, magnet, speaker

200

When was this created?

sometime in the 19th century

200

Why is this important

this machine diagnoses injuries, tumors, and other diseases 

200

What is its purpose

To measure electricity

300

Why is this machine important?

It turned motion into electricity while other inventions turned electricity into motion

300

Why is this important to science

it offers information on the existence of ferromagnetic domains

300

where was the alternating current found?

a household of appliances

300

What does MRI stand for

Magnetic Resonance Imaging

300

True or false, the electric meter was retired in 1974 after being called "unsafe" by the US electric association

false

400

When was this machine discovered?

1832

400

When was it discovered

1919

400

True or false, the alternating currents are all the same sizes and go in the same direction

False

400

How long does an MRI take

as long as 10 minutes to 2 hours

400

how does it work

 As the home draws current from the power lines, a set of small gears inside the meter move. The number of revolutions is recorded by the dials that you can see on the face of the meter.

500

How does this machine operate?

A magnet runs through a cylinder and wrapped in a copper wire which is how the electricity is created.

500

What can you use this for

figure out the hardness state of materials

500

Why is this important to science?

it can transfer power across large areas without consuming lots of energy

500

What is the system of the MRI

The hydrogen nuclei in our body is gripped by the powerful magnetic field in the MRI 

500

what year was it discovered

1879