EQUATIONS
How do you find the magnification?
focal length of objective/focal length of eyepiece
What is the difference between a refracting and reflecting telescope?
refracting uses lens. reflecting uses mirrors.
How did the universe began? Who said the universe was expanding?
The Big Bang Theory. Edwin Hubble.
Who discovered the electron?
J J Thomson
Who discovered the atomic nucleus?
E. Rutherford
What is Albert Einstein's equation for energy?
e=mc2
What type of telescope did Galileo and Newton use?
Galileo: refracting
Newton: reflecting
Who said the Earth was the center of the universe?
Aristotle
Who explained the electromagnetic waves and the exact quantity for the speed of light? What is that quantity?
Clark Maxwell and the speed of light is 3*108 m/s
What did Newton discover?
Theory of Light.
This is used to find the relationship between the size of the planet's orbit and how long it took.
P2=4pi2/G(MSun+mplanet)a2
Where were the Surveyor spacecrafts sent to?
The moon to gather data.
What did Ptolemy believe about the planets?
they moved in circular motion as they orbit
Who discovered that light comes in a small quanta?
Max Planck
What is a sidereal day?
Sidereal day is 23 hours and 56 minutes as its the time it takes for Earth to rotate about its axis so that the distant stars appear in the same position in the sky
What it Newton's Law of Universal Gravitation?
F=GM1M2/d2
Which spacecraft was sent to Venus and what did it discover?
Magellan Spacecraft. It learned more about Venus's atmosphere
He contradicted Aristotle's beliefs about who is in the center of the universe?
Copernicus
They were both working on the Theory of Quantum Mechanics independently and came together to realize that they were both correct...
Hiesenberg and Schrodinger
Galileo discovered who's moons? What did he have to say about Earth's moon?
Jupiter. Galileo contracted Aristotle’s beliefs that the moon was a smooth sphere but with the telescope, Galileo was able to see valleys, craters, mountains etc.
What are Newton's Laws of Motion?
Every object in uniform motion will remain in that state of motion unless external forces are acts on it (Inertia)
Fnet=ma
For every action there is an opposite and equal reaction
What spacecrafts was sent to Mars and why?
Viking 1 & 2 in search for life.
Spirit and Opportunity to find more clues about the history of water on Mars.
What are Kepler's Laws?
Law 1: All planets move around the Sun in an elliptical orbit with the Sun occupying one foci of the elliptical
Law 2: The straight line joining the Sun and a planet sweeps out equal areas in equal intervals of time.
Law 3: the size of a planet's orbit (the semi-major axis of the ellipse) is simply related to sidereal period of the orbit
What is the Nebular Hypothesis and who came up with that?
Pierre Simon Laplace and Immanuel Kant Nebular came up with the Nebular Hypothesis: planets formed by compression of gases
What is the Cambrian Explosion? When did it happen?
550 million years ago. The explosion of life. Most of the major lineages of animals got their start during this period and been evolving ever since.