JJ Thompson's CRT Experiment Quiz

What does CRT stand for in the context of JJ Thompson's experiment?

• Cathode Radiation Technology

• Cathode Ray Transmission

• Cathode Ray Tube

• Charged Ray Transmission

In the mid-19th century, what was one reason cathode rays were popular among scientists and the public?

• They were a source of heat

• They were visually appealing

• They emitted sound

• They were used for communication

What was one of the early conflicting ideas about the nature of cathode rays?

• They were a form of heat energy

• They were waves traveling in a fluid called The Ether

• They were a form of light

• They were a type of sound wave

What did JJ Thompson conclude about the nature of cathode rays?

• They were particles smaller than atoms

• They were larger than atoms

• They were a type of wave

• They were positively charged

What significant property of cathode rays did Thompson observe?

• They were positively charged

• They carried a negative charge

• They were unaffected by magnetic fields

• They traveled in curved paths

How did Thompson's apparatus differ from earlier experiments in terms of vacuum quality?

• It used a different type of gas

• It had a superior vacuum, removing nearly all air

• It was completely filled with air

• It had more air inside

What was the charge-to-mass ratio value that Thompson calculated for cathode rays?

• -1.76 x 10^6 coulombs per gram

• 1.76 x 10^8 coulombs per gram

• 1.76 x 10^6 coulombs per gram

• -1.76 x 10^8 coulombs per gram

What did Thompson hypothesize about the cathode rays in relation to atoms?

• They were the only building blocks of atoms

• They were unrelated to atoms

• They were a form of energy

• They were larger than atoms

What model of the atom did Thompson propose based on his findings?

• Quantum Model

• Bohr Model

• Plum Pudding Model

• Solar System Model

What was a major flaw in Thompson's Plum Pudding model?

• It did not include neutrons

• It suggested electrons were the only subatomic particles

• It did not account for the existence of protons

• It suggested atoms were positively charged