Physics 1
in physics, what's the unit for force?
Newtons
what's the equation used to calculate work?
Work = Force x Distance
what is at the center of our galaxy?
a black hole (Sagittarius A*)
what's the 4th dimension in spacetime?
time
what's the largest country in the world?
Russia
What do you call the force moving away from an axis in a rotational motion?
centrifugal force
does hot or cold water freeze first?
cold
which planets are the gaseous planets?
jupiter, uranus, neptune, saturn
which planets are the terrestrial planets?
define electromagnetism
the interaction between electricity and magnetism
which forces cause you to stay in your seat while a rollercoaster is upside down (primarily - count 2)?
centripetal force + normal force (from the seat)
what is wave-particle duality?
waves exhibit particle-like qualities, and particles exhibit wave-like qualities
which planets have rings around them?
jupiter, saturn, neptune, uranus
storms produced by the sun
solar storms
author known as the "queen of mystery"
Agatha Christie
moving electric charge generates a _________ _______
magnetic field
According to physics, what are the four fundamental forces in nature?
Strong Force, Electromagnetic Force, Weak Force, Gravitational Force
how does a meteor become a meteorite?
by hitting earth's surface
what's the minimum mass in order for spacetime to bend around an object?
none! no min mass
honey
a change in a magnetic field creates an __________ ________
electrical field
does light travel faster in air or water?
air bc water is denser (has more particles packed together) than air, so light interacts with more particles in water than it does in air - less particles = less stuff in the way
name 3 parts of a black hole
singularity, event horizon, photon sphere, accretion disk, relativistic jets, innermost stable orbit
what's the name of the sun's outermost atmosphere?
the corona
what's the most banned book in the world, and why?
1984 by George Orwell; main reason being that the book criticizes gov't censorship