Astronomers
Proposed the heliocentric theory, which was the basis for modern astronomy
Nicolaus Copernicus
What is a radio telescope?
A telescope that detects radio waves from objects in space.
What is the force of the rocket blasting off called?
Thrust
A moon or asteroid
A scientist who studies the universe and the objects found in it.
Astronomer
Ancient nations that studied the stars
Greeks and Egyptians
Why would a telescope be placed on a high mountain?
Reduce distortion from clouds, air and light polution
What space vehicle is reusable?
Space shuttle
What can a satellite be used for?
A natural object that orbits a planet, such as a moon.
Natural satellite
Spell the full name of the astronomer that discovered Jupiter's four largest moons
Galileo Galilei
Name a famous telescope that is currently being used to study space
The James Webb telescope
What is one downside of using a rocket?
Uses lots of fuel, not reusable
Where do artificial satellites get their power?
Solar panels
A reusable device capable of delivering objects into space, consists of an orbiter, a fuel tank and two booster rockets.
Space shuttle
What is the Ptolemaic theory before Copernicus?
The Earth is the center of the universe
A telescope that gathers light with a concave mirror.
Reflective telescope
How fast is escape velocity (for Earth)?
7 mi/sec or 25,000 mph
What are the steps for global communication satellites?
1. Signal gets sent to local satellite
2. Satellite receives signal
3. Satellite relays signal to other satellites until it is above the target
4. Signal is beamed back to Earth to a receiver
An unmanned space craft that collects information about objects in space.
Space probe
Developed the first reflective telescope and the theory of gravity
Isaac Newton
Describe how a telescope works
Use one lens to collect and focus the light. They use another lens to magnify the image.
What are space shuttles and space planes used for?
Launch and repair satellites, build the ISS, take astronauts to and from space
Name two of the four orbit types of artificial satellites
Polar, circular, eccentric, geostationary
A man-made object that orbits a planet and is used to gather or relay information.
Artificial satellite