Can someone please help me in physics Watch

PrincessDiaries
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#1
Report Thread starter 6 months ago
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Can someone please help me understand physics
I have my GCSEs exams in three months

I need help with
-measuring acceleration Galileos experiment
-modern version of Galileos experiment
-investigating friction
-digital sound and analogue sound
-measuring speed with a resonance tube and oscilloscope
-Double glazing
-what is the right hand rule
-relay switch
-electric motor
-relay switch
-Dynamo
-generators
the Geiger muller tube

can u please specifically and detailly explain them
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Universe42
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lol is there a specific topic?
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PrincessDiaries
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(Original post by Universe42)
lol is there a specific topic?
I need help with electromagnetism like circuit breakers,generators,electric motor and I need help with galeios experiment
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Universe42
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is this a level or gcse? xx
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Ambi64
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A bit more specific maybe?

Electromagnetism is basically about the forces between electrons, and how they repel each other in different ways. Circuit breakers are like fuses but you can use them multiple times, they stop your electronics from getting overloaded. Generators and motors can convert movement into electricity due to the electromagnetic force. I think that last one you said is meant to be Galileo's experiment which basically shows that everything falls due to gravity at the same speed, but it doesn't look like it normally because of air resistance; if you drop a feather it'll waft around in the air and takes a while to reach the ground. But if you were in a vacuum (a room with no air) then a feather would fall at the exact same speed as a bowling ball (it doesn't matter how heavy they are): https://www.youtube.com/watch?v=QyeF-_QPSbk
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PrincessDiaries
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(Original post by Ambi64)
A bit more specific maybe?

Electromagnetism is basically about the forces between electrons, and how they repel each other in different ways. Circuit breakers are like fuses but you can use them multiple times, they stop your electronics from getting overloaded. Generators and motors can convert movement into electricity due to the electromagnetic force. I think that last one you said is meant to be Galileo's experiment which basically shows that everything falls due to gravity at the same speed, but it doesn't look like it normally because of air resistance; if you drop a feather it'll waft around in the air and takes a while to reach the ground. But if you were in a vacuum (a room with no air) then a feather would fall at the exact same speed as a bowling ball (it doesn't matter how heavy they are): https://www.youtube.com/watch?v=QyeF-_QPSbk
How do generators and motors convert movement in to electrical energy
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Ambi64
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So wires are made of metal which have electrons basically floating around in them, not moving much. You can move electrons in a wire by moving a magnet next to the wire - the electromagnetic force causes the magnet to basically push the electrons, creating an electrical current. A generator is a coil of wire with a magnet inside, and the magnet spins around "pushing" the electrons in the wire and creating electrical current.

A motor is basically the same thing but the other way around, you attach a battery/power source to the wire and the electrical current passes through the coil "pushing" the magnet due to the electromagnetic force, causing it to spin.
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PrincessDiaries
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(Original post by Ambi64)
So wires are made of metal which have electrons basically floating around in them, not moving much. You can move electrons in a wire by moving a magnet next to the wire - the electromagnetic force causes the magnet to basically push the electrons, creating an electrical current. A generator is a coil of wire with a magnet inside, and the magnet spins around "pushing" the electrons in the wire and creating electrical current.

A motor is basically the same thing but the other way around, you attach a battery/power source to the wire and the electrical current passes through the coil "pushing" the magnet due to the electromagnetic force, causing it to spin.
Thanks how about Geiger Miller tube
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