Zusammenfassung der Ressource
Physics
Anlagen:
- Magnets
Anmerkungen:
- Magnets have a north pole and a south pole
Anlagen:
- Same Poles
Repel
Anmerkungen:
- For example
S and S repel
N and N repel
- Different
poles attract
Anmerkungen:
- For example
N and S attract
- The Field lines
travel from N to
the S
Anmerkungen:
- The field lines go out North and go in South
- Electromagnatism
Anlagen:
- The metals which can
have magnetic
properties
Anmerkungen:
- Magnets are magnetic when the domains inside the domains inside then line up
- Iron
- Steel
- Permanent
magnet
- Cobalt
- Nickel
- Making Electromagnets
Anmerkungen:
- Need:
-Iron core
-Coil of wire
-electricity
How to increase the strength of a electromagnet:
- increase the current
-increase the amount of Fe
-increase the number of coils
- Waves
- Equations
Anmerkungen:
- Force (N) = magnetic flux density (Tesla) x current (Amps) x length (m)
F = BIL
Charge = Current x Time
Q = It
- Symbols
Anmerkungen:
- Force = F
Magnetic density = B
Current = I
Length = L
Charge = Q
Time = t
Potential difference = V
Energy transferred = E
Resistance = R
Frequency = fWavelength =
- Units
Anmerkungen:
- Charge = Coulomb (C)
Current = Amp (A)
Time = Second (s)
Potential difference = Volts (V)
Energy transferred = Joules (J)
Resistance = Ohms(
Wavelength = (m)
Frequency = (Hz)
Speed = (m/s)
Magnetic flux density = Tesla
Force = Newtons (N)
Length = meters (m)