WorksheetsDiscovery of Electrons
Total questions: 14
Worksheet time: 3mins
Atoms are homogeneous (made of the same parts throughout).
True
False
What is a cathode ray?
A beam of electrons emitted from the cathode of a high-pressure tube
A beam of electrons emitted from the cathode of a low-pressure tube
A beam of protons emitted from the cathode of a high-pressure tube
A beam of electrons emitted from the cathode of a high-vacuum tube
Cathode Ray Tubes have a material known as _____________ painted onto the far end of the tube.
Calcium
Phosphors
Argon
Nitrate
The cathode ray will deflect away from what?
Negatively charged plate
Positively charged plate
Neutrally charged plate
None of the above
Joseph John Thomson is a Nobel prize winner in...
Chemistry
Physics
Biology
Electronytest
Atoms cannot be divided. True or False
True
False
Thompson’s cathode ray particles are also known as...
Cathodytes
Thompsonyte
Electrons
Protons
Cathode rays can be deflected by... (check all that apply)
Negatively charged plates
Positively charged plates
Magnetic field
Hydro Neutronisis
The cathode ray was composed of __________ charged particles.
Positively
Negatively
Neutrally
None of the above
The discovery of electrons did not approve of the part of John Dalton’s Atomic Theory which assumed that atoms cannot be divided. True or False?
True
False
Many scientists searched cathode rays for the carrier of electrical properties in matter. This led to the discovery of neutrons.
True
False
Plasma (in physics) is a/an... (check all that apply)
Ionized gas
Rock
Fourth state of matter
Blood
Identify this image
Nanode ray vacuum
Cathode ray vacuum
Diode beam tube
Cathode ray tube
How was our presentation?
Rotten (I didn't understand a thing)
Complicated (Kinda confused)
Good (Understand the concept, but...)
I am now a Scientist! (I can split an atom with my hand!)
