Earth & Moon Formation
Vaccuums
Newton
Kepler
Time
Miscellaneous
100
How long ago was the Earth formed?
4.5 billion years ago
100
True or False: There is absolutely no gas in the 'vaccuum of space'
False, there is always some molecules present
100
What is Newton's 1st Law?
Law of Inertia - A body of rest tends to stay at rest and a body in motion tends to stay in motion unless acted on by an external net force not equal to zero.
100
An Ellipse instead of having one center has two what?
Foci
100
We have day and night because...
The Earth spins/rotates about itself
100
Who did the Cleveland Browns beat decidedly at home last weekend?
The Miami Dolphins
200
A shallow part of an early ocean where the temperature, pressure and presence of organic molecules led to the creation of life is most commonly referred to as...
Primordial Soup
200
I want to climb mount Kilimanjaro (5,895 meters tall) in Africa. At the top, the atmospheric pressure is about 0.45 atm. Compared to sea level, about what percentage of oxygen am I breathing in per breath?
About 40-50%
200
In 1665, during the black plague, Newton locked himself away in his farmhouse. He used this year of isolation to come up with, amongst other things, his three laws of motion, his law of universal gravitation, AND THIS branch of mathematics...
Calculus
200
When closer to the sun, the Earth is moving at a _________ rate.
faster
200
Theia's crash with our young Earth made it tilt 23.5 degrees. This tilt causes what?
The seasons!
200
Police are still searching for the four thieves who made off with eight jewelry pieces valued at about $102 million. What museum was robbed over the weekend?
The Louvre in Paris, France.
300
An early planet crashed against the Earth and ultimately formed the Moon. What was the name of this planet?
Theia
300
We learned last unit that we can receive electromagnetic radiation (light) through the emptyness of space. Why can't we receive sound the same way?
Light does not need a medium to travel through but sound does. Sound needs gas/liquid/or solid to travel from molecule/atom to molecule/atom until it gets to the listener.
300
Astronaut Wendy of mass 80kg is floating outside the ISS with astronaut Ted of mass 100kg. Wendy pushes Ted with a force of 10 Newtons. Explain what happens to Wendy using one of Newton's laws.
Wendy goes backwards and actually accelerates more than Ted because of her lighter mass. This happens because of Newton's 3rd law which states that for every action there is an equal and opposite reaction.
300
The mathematical calculations of the orbits of the planets didn't add up. Kepler fixed this by stating that the orbits...
Instead of being circular were elliptical.
300
This planet has the shortest day (about 10 hours)
Jupiter
300
Jakarta is the capital of what country?
Indonesia
400
Aboard the ISS in 2003, astronaut Donald Pettit observed small particles coalescing in microgravity which represented the early accumulation of small dust and rock particles that ultimately made the planets. These experiments are commonly known as the
Salt Experiments
400
Astronauts are advised NOT to hold their breath if they suddenly depressurize in space. Why not?
Because in a vacuum the air in your lungs would expand rapidly, and if you held your breath, it could rupture your lungs and cause fatal injuries. Exhaling allows the air to escape safely during sudden depressurization.
400
To reach escape velocity a 300,000 Kg rocket must accelerate to 15m/s2. How much thurst force must the rocket fuel provide?
F=ma
300,000 kg x 15m/s2 = 4.5 million Newtons
400
What is the eccentricity of the following ellipse?
e = c/2a
0.83
400
There is a misconception that summer happens when the Earth is closest in its orbit to the sun.
What is the name of the point at which a body is closest to the body it orbits?
Perogee
400
Name this monkey!
Proboscis monkey
500
Our young planet was mostly molten early on. This differentiation occured: denser metals like iron and nickel sank to the bottom and ultimately made our core. The spinning core creates the ____________ which protects us from solar radiation and other charged particles.
Magnetosphere
500
Explain why the shower curtain might hit you during a hot shower.
When you take a hot shower, the warm air inside the shower rises and escapes, while cooler air from outside is drawn in to replace it. This movement of air lowers the pressure inside the shower slightly, creating a small vacuum effect. The higher-pressure air outside then pushes the lightweight curtain inward toward you.
500
Newton's law of universal gravitation states that the gravitational force between two bodies is directly proportional to their masses and inversely proportional to the square of the distance between them. A black hole of mass 1.1 x 1041 kg is 3 x 109m away from a planet of mass 3.3 x 1023 kg. What is the planet's acceleration towards the black hole? (Use 6.67 x 10-11 for G)
Fg = G(m1m2)/r^2
a = 8.2 x 1011 m/s2
500
On average, a planet is 1.52 AU from its host star. How long does it take to orbit it?
a3 = T2
Around 1.88 years (the planet is Mars)
500
Give me the phases of the moon starting with New Moon
New Moon, Waxing Crescent, First Quarter, Waxing Gibbous, Full Moon, Waning Gibbous, 3rd Quarter, Waning Crescent
500
This popular Spanish rice dish gets its yellow color from saffron spice (the most expensive spice in the world).
Paella