Astronomers
This astronomer from our notes has a space telescope named after him.
Edwin Hubble
This is the shape of the orbits of planets around the sun
Ellipse (Elliptical)
What is the LARGEST object in the solar system?
The Sun
What type of electromagnetic radiation has the lowest energy? Which has the highest energy?
Lowest: radio waves
Highest: Gamma rays
This gas is the most abundant part of the atmosphere of Venus.
Carbon Dioxide (CO2)
Which astronomer created the three laws of planetary motion?
Johannes Kepler
It increases its speed (gets faster)
Draw a picture to show where these three celestial bodies would be found: Meteor, Meteoroid, Meteorite
Meteoroid in outer space
Meteor in Earth's atmosphere
Meteorite on Earth surface
List the types of electromagnetic radiation in order of shortest frequency to longest frequency
Gamma, X-ray, UV, Visible, Infrared, Microwave, Radio
What are terrestrial planets made of (must include 2 answers!!)
Rock and metal
These two astronomers were the first to develop a model of the universe. Even though they were wrong, their ideas lasted for over 1,000 years
Aristotle and Plato
Which planet has the shortest orbit around the sun?
Which planet has the longest orbit around the sun?
Shortest: Mercury
Longest: Venus
List the planets in order from smallest to largest
Mercury, Mars, Venus, Earth, Neptune, Uranus, Saturn, Jupiter
Draw two different waves at the following wavelengths:
1. Infrared
2. Ultraviolet
1. Longer wavelength, lower frequency
2. Shorter wavelength, high frequency
Which inner planet is the hottest?
Venus
Give one example of evidence Galileo found to support the heliocentric model of the solar system
- 4 moons of Jupiter
- Phases of Venus
- Sun Spots
What is the name of the law created by Sir Isaac Newton that described why and how planets orbit the sun (NOT the laws of planetary motion)
Law of Universal Gravitation
What three rules must a planet follow to be considered a planet?
1. sphere
2. orbit a star
3. cleared its path of other objects
What is one use for gamma radiation?
Chemotherapy (killing cancer cells), sterilization, nuclear power
What is different about the rotation of Venus from the other inner planets?
Venus rotates backwards (east to west)
This astronomer found evidence that black holes emit radiation (it was believed that nothing came out of black holes before his research)
Stephen Hawking
What is an astronomical unit?
The distance from the sun to the Earth (~150,000,000 kilometers/92,000,000 miles)
How are the orbits of asteroids and comets different?
Asteroids orbit closer to the sun and are found mostly in the asteroid belt.
Comets have long, narrow orbits that take them very far from the sun; out to the edge of the SS and back
What two frequencies of electromagnetic radiation are used to send phone calls?
Radio and Microwave
What is the speed of light?
186,282 miles per second
(299,792 kilometers per second)