Electromagnetism
How do atomic particles move in a uniform magnetic field?
They will create a spiral like pattern as they move through the field.
15,000,000 in scientific notation.
1.5 x 107
What is the weakest fundamental force?
gravity.
what is general inverse square law?
it is when a quantity like a force follows an inverse square law this means that the strength of the force varies decreases in proportion to the square of the distance from the object causing the force.
what is Newtons law of gravity
he said that every thing in the universe that has mass exerted a gravitational force on every thing else in the universe that had mass
what does Ampere's law state?
a current carrying wire will produce a magnetic field.
0.00006 in scientific notation.
6 x 10-5
What happens in the beta decay process?
a neutron converts to a proton, an electron, and a neutrino, while a proton will convert to a neutron, a neutrino, and a positron.
if the distance is 1/5 what is the force
the force is 25 times stronger.
what is proof of Einstein's law
During the eclipse, light from distant stars bent around the sun and clocks tick faster the further from Earth's center you are.
what neat feature do ferrous metals have?
they can have mono-electron orbitals.( most metals have at least 2 electrons in their orbitals ) Those unbalanced orbitals are ultimately what allow a material to be magnetic, if the conditions are just right.
(4 x 109) x (9.2 x 10307) in scientific notation.
3.68 x 10317
What is the weak nuclear force?
One of the four fundamental forces, and is responsible for beta decay.
1/8 of a distance equals what force
64 times stronger.
how do movies film scenes were the actors are in zero gravity.
they are falling in a airplane with free fall.
how do you create an electromagnet?
By wrapping a copper wire around a ferrous metal core (iron, steal or nickel ) and running an electric current through the wire.
8 x 1027/2 x 1023 in scientific notation.
4 x 104
What is alpha decay?
protons and neutrons are ejected from the nucleus. these particles will then collide with other nuclei and more particles will be ejected, causing an uncontrollable cascade of other atoms being ripped apart.
if a force is 100 times weaker (1/100) than what is the distance?
10 times further away.
how does being in an accelerated rocket feel similar to standing on the surface of a planet?(HOW DEOS EINSTEIN EXPLAIN THIS)
In both cases, you feel pressed downwards. Einstein argued that the reason they feel similar is because in both cases you are accelerating.
What computer part (mentioned in the textbook) uses electric fields?
The capacitor
suppose a distant planet had a mass of 16 x 1040 kg. how much force would a person who weighs 100 kg feel if they were standing 4 x 1012 meters from the planet center?
1 x 1018 G
what is nuclear decay?
a naturally occurring nuclear reaction in which an atom of a radioactive element spontaneously changes the composition of it's nucleus by the emission of particles and or electromagnetic radiation.
if a distance is 3 times further away what is the force?
1/9th
According to Einstein gravity is what?
It is the curvature of space-time by objects with mass. It is not a force