Physics Flashcards
How is specific charge calculated ?
Specific charge = charge (C) /mass (kg)
What is the unit for specific charge
C kg^-1. Coulombs per kilogram
In the nucleus,
Positively charged protons are next to one another,
According to electromagnetic forces they should repel
But they don’t , what force is holding them together
The strong nuclear force
( the strongest of all fundamental forces)
Speed of light in a vacuum (c)
3.0x10^8 m/s
Isotopes have…
The same number of protons
Different numbers of neutrons
What is the graph for the srong neuclear force, what are the ranges of …
Weakness
Repulsion
Repulsive closer than 0.5fm
Very week attraction past 3.0 fm
What is a alpha particle made up of
2 protons
2 neutrons
What is the charge of a neutrino
0 (neutral)
How many joules (J) are equal to one electron vault
1.6x10^-19
What is planks constant ?
6.63x10^-34 (joule seconds)
How dose current act in components in series’s ?
How dose voltage act in components in series’s
Current is the same
Voltage is divided
Kirchhoff’s first law
What is a hadron
A sub atomic particle made up of quarks (uud) that can feel the strong nuclear force
What is a ohmic conductor ?
A component with a constant resistance
