How does a cathode ray tube work?

What I want to write:

Energy is given to the cathode , thus allowing an energy beam to be crated between the positive charge on one end of the tube, and the negative charge on the other end.

Can I add anymore? Also, would it be reasonable to add what it does swell or is that straying to far from the question?

What you have written is correct; however, I don't think it covers the subject that well. I would consider modifying what you have written. Also, I think it would be great to add what it does and I don't think that strays from the subject at all. Here is a link from Wikepedia. That should give you enough information to write a nice one or two page summary. Remember paraphrase what you read from other sources; that is, don't copy word for word. That is plagiarism.

Forgot the link.
https://en.wikipedia.org/wiki/Cathode_ray_tube

I probably could write a one or two page summary, but I have to condense al lot that to about 3 sentences, so rephrasing my question I guess, in the shortest way possible, how does a cathode ray tube work?

In short:

a cathode is heated until electrons are boiled out, then an accelerating field is applied which moves the electrons in a path towards phosphor coated screen. With suitable deflecting fields, the beam can be moved about to strike certain areas. A large positive voltage is applied to the screen itself to drain off the spent electrons.

Yes, you can add more to your explanation of how a cathode ray tube (CRT) works. Here's a more detailed explanation:

A cathode ray tube is a device used to display images on electronic displays such as televisions and computer monitors. It works by the manipulation of a beam of electrons, also known as a cathode ray.

Inside the CRT, there are two main components: the cathode and the anode. The cathode is a negatively charged electrode that emits electrons when heated. These emitted electrons are then accelerated towards the positively charged anode.

The electrons are controlled and manipulated by an electric field produced by focusing electrodes and deflection plates. The focusing electrodes ensure that the electrons travel in a narrow beam, while the deflection plates control the position of the beam by applying varying electric fields.

As the electron beam travels towards the front of the CRT, it passes through a phosphor-coated screen. When electrons strike the phosphor coating, they cause it to emit light. By controlling the intensity and position of the electron beam, different patterns and colors of light can be produced on the screen, forming the desired image.

Regarding your question about including what a CRT does as well, it would be reasonable to briefly mention its purpose. For example, you could say:

"A cathode ray tube is a device that uses a beam of electrons to create images on a screen. It is commonly used as a display technology in televisions and computer monitors."

This addition provides some context for the function of a CRT without straying too far from the main question.