Show:
Geissler
Cathode rays
Experiment
Facts
Random
100
Who first invented the Geissler tube?
Johann Heinrich Wilhelm Geissler
100
What is one thing that Crookes discovered about cathode rays? (hint- discharge)
The basic discharge properties of the electric discharge of cathode rays
100
What did Crookes invent?
Bent Geissler tube
100
Where was this discovery made?
London, England
100
Which side of the tube has a negative (-) charge?
The cathode
200
When was the Geissler tube invented?
1857
200
What is the other thing that Crookes discovered about cathode rays? (hint- straight)
Cathode rays travel in straight lines
200
What did Crookes put on each end of the tube?
an electrode- conductor in through which electric current pass
200
Who became the Empress of India and the English Empire during this time?
Victoria
200
Which side of the tube has a positive (+) charge?
The anode
300
What did Geissler create/develop?
A mercury vacuum pump
300
What type of heat do cathode rays produce when they strike certain materials?
Phosphoresence heat
300
What made the tube "act" like a vacuum?
Pumping air out of the tube
300
Did anybody oppose this finding?
No, as far as we know
300
All cathode rays have ______ properties.
identical
400
He made the first discovery of...
Discharged light
400
What year did Crookes discover all of this information about cathode rays?
1875
400
Are cathode rays light? Give an example.
No; -cathode rays react to a magnet -have a charge
400
What is the full name (first and last) of the scientist we had?
William Crookes
400
What religion was England at this period?
Christian
500
Who did Geissler work with (the person who named the tubes "Geissler tubes")?
Julius Plucker
500
What are cathode rays named after?
The cathode, where the rays traveled from
500
Normally, cathode rays travel in straight lines ______ to the cathode.
perpendicular
500
What is the "Irish Question"?
Whether or not the Irish should be allowed to rule themselves
500
What is the name of the barrier that Crookes placed in the way of cathode rays in his later experiments?
The maltese cross