Elecricity and magnetism Flashcards
1
Q
What is an atom made up if ?
A
A nucleus, protons, neutron, and electromagnets
2
Q
What charge is a proton and a neutron ?
A
A proton is positive, and a neutron is neutral
3
Q
What is a van de graaf generator ?
A
This is a dome builds up to 5000 watts of electricity, and as you put your hand on the dome, your hair will rise up, as in the dome it build up positive energy, therefore your hair will repell as it is a negative charge
4
Q
What are the uses of an electromagnet ?
A
- You can use electromagnets to move a maglev train
- You can use electromagnets to lift a train, as it repells other magnets
- Electromagnets are used to levitate a train
- In a scrapyard, you can use an electromagnet to create a current, which
will become magnetic - You can make a simple motor by using two magnets, and a coil of wire