Spacecraft
Satellites
Universe
Astrophysicists
Electricity
100
Its a reusable crewed spacecraft.
space shuttle
100
What kind of satellite gives scientists a big-picture view of Earth's atmosphere?
weather satellites
100
space and all matter and enegy in it
universe
100
Who discovered the Universal Law of Gravitation:
"Every object in the Universe attracts other objects due to mass and proximity?"
Isaac Newton
100
These allow electric charges to move freely.
conductors
200
What spacesuit feature provieds oxygen to an astronaut?
life support pack
200
Which satellite allows us to send television signals, internet and radio broadcasts?
communication satellite
200
According to ___, the universe began as a tiny volume that suddenly and rapidly began expanding.
the Big Bang Theory
200
Who formulated the Special Theory of Relativity and the General Theory of Relativity?
Albert Einstein
200
What is the amount of work required to move a unit of electric charge?
a volt
300
It has detachable capsules that contain the crew.
rocket
300
What kind of satellite does a phone map app utilize?
GPS (navigation)
300
This is the remnant of the early radiation that filled the universe.
Cosmic Microwave Background (CMB)
300
This American astronomer was the first to present observational evidence that suppoted the idea that the universe is expanding. He observed the redshift in light that was coming from distant galaxies.
Edwin Hubble
300
What is an electric circuit in which all the parts are connected in a single loop?
series circuit
400
Name two problems with crewed spacecraft. [double click for naming three]
having enough fuel
having suffieicent supplies of air, food and water
Weightlessness causes bones and muscles to become weak.
400
a kind of artificial satellite that operates around other planets
orbiter
400
Edwin Hubble proved that when an object moves away from us, this apparent change in wavelengths of light occurs.
red-shift
400
This scientist thought that if the universe was expanding, all matter must have been backed into a very small space -"primeval atom"- at some time in the past.
Georges Lemaitre
400
What type of current runs all devices that run on batteries?
DC
500
What two vehicles are more suited to the long-term study of a planet or moon?
any two: lander, rover, orbiter
500
Since satellites have no electric generators, how do they produce electricity?
solar panels
500
Give three examples of evidence that supports the Big Bang theory.
Red-shift, CMB, abundance of light elements
500
George Gamow discovered that light elements formed during the early stages of the Big Bang. What were the two elements that were primarily created during the Big Bang and still compose most of the observable universe?
Hydrogen (H) and Helium (He)
500
What three properties of a wire give it higher resistance?
length, width, and temperature (also composition)
[Long, thin, hot wires have higher resistance. Steel has more resistance than copper. Non-metals have the most resistance.]