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I see... What if it's projected with a too high velocity? Will it fall back to earth as well?

Ooh I see. All this while I had the idea that it worked like a mass being whirled around with a string. I'm a Year 12 student and my textbook kinda just grouped tension, friction, gravity and electrostatic force together as sources of centrepetal force without really explaining each one individually. Could you explain a bit more about the atmosphere bit? How does the atmosphere affect it?

Hi, Could someone please explain to me how satellites orbit the earth? I know about gravity providing the centrepetal force and all that, but I still don't quite get it. If one were to launch say, an apple or something horizontally from some peak with a high velocity, how come it'll fall straight back down in projectile motion? How come some things orbit the earth when launched whereas some things don't? Is there a like minimum distance or velocity that an object has to be launched with in order for it to orbit and not fall straight back down? Thx

Whoops. Didn't realise that I shorted out the LED. Do you mean i put an ammeter in like this? Thx

Would something like this work? (Sorry, not a very good artist) Someone suggested that I try setting up a circuit like that

Oh alright. Thanks a lot! I'll check out some sites about dielectrics then. Not very well versed in these things.

Oh ok. Could u explain further how it works? I thought of using two plates but i wasn't sure whether it would work. Thanks a lot!

Is there any specific object/equipment that you can use to measure the dielectric breakdown of air? Or if there's no such equipment, is there any way to fix together some lab apparatus to construct something which can do so?