It was the investigator J. J. Thomson who did experiments with an early cathode ray tube. You'll find a link below.
The English scientist JJ Thomson discovered electrons from the experiments he performed with a cathode ray tube. His work was published in 1897.
Dermabrasion
Because sound is the movement/vibration of air, which is mechanical motion, involving mechanical energy.
The scientific method's 4th step is to conduct experiments and test your hypothesis. After that, you do the 5th and last step: draw conclusions based on the results of your experiments.
in 1798 Count Rumford showed that heat is not a substance but a form of energy. James Joule (18181889) devoted his life to the study of heat
It means that energy cannot be created nor destroyed, but it can change from one form to another.(for example, mechanical energy to heat energy.)
J.J. Thomson used cathode ray tubes to prove the existence of electrons.
Record the data and form a conclusion based on the results.
Oxidation takes place at the anode and reduction takes place at the cathode, so elemental metal will form at the cathode, and elemental metal will form into ions at the anode.
To answer a specific question, scientist form a hypothesis. If the hypothesis cannot be testable or answered, they'll give you a prediction of what will most likely happen from the results of the hypothesis.
a cathode ray reader is a device that can recognize beams of electrons in analog form and interpret them into digital form
What happens is Scientists conduct experiments and if all the Scientists who conducted the same experiment come up with the same results, the call it a LAW.
Students could be seen to be acting as scientist if they are following the scientific method - Make observations, postulate a hypothesis, and form and complete experiments or further observations to confirm or refute that hypothesis.
Cathode rays are the emission of free electrons form the negative pole of an electric circuit. To get this to happen you need to warm the cathode and place it in a vacuum tube with a high voltage across it. The electron then jump form the cathode and fly across the empty tube to the anode (positive end). They may be bent by magnetic fields in flight.
cathode ray oscilloscope
The plural possessive is experiments'.
Metals ions form solid metal
from ray access cathode switch