martes, 10 de abril de 2018

ELECTRICITY AND MAGNETISM


Electricity and magnetism
Electricity: It is a flow of electrons.
Electricity and magnetism are related.
When electric current flows through a wire, a magnetic field is produced.



Drawing:












MAGNETS
What is a bar magnet?
A bar magnet always has a magnetic field. They have two poles:
-North pole (+)
-South pole (-)


ELECTROMAGNETS
Microphones, speakers and high speed trains (maglev-magnetic levitation train) use electromagnets. Page 30 and 31.

jueves, 15 de marzo de 2018

MASS, VOLUME AND DENSITY





                                                                           FORMULA





                                           SINKING AND FLOATING: DENSITY







                                                      CREATE YOUR OWN TRIANGLE