Objects in Space
What is the term that encompasses all of space, time, and matter?
The Universe
What part of the H-R diagram would you find our sun?
Our sun is located in the main sequence of the H-R diagram.
What object in our solar system has the greatest gravitational pull?
The Sun
Why does the moon have different phases?
The moon has different phases due to its orbit around Earth, which causes varying portions of its illuminated half to be visible from Earth.
What part of the electromagnetic spectrum is responsible for sunburns?
Ultraviolet (UV) radiation is responsible for sunburns.
There are billions of stars in the galaxy, why do stars that are larger than our sun appear smaller?
Stars larger than our sun appear smaller because they are much farther away from Earth.
What color is the hottest?
Blue is the hottest color for stars.
Why does Earth orbit the Sun rather than any other body in the solar system?
Earth orbits the Sun because the Sun has the most massive gravitational pull in our solar system.
Why are there not solar eclipses every month?
Solar eclipses do not occur every month because the moon's orbit is tilted relative to the Earth's orbit around the Sun, so the three bodies do not align perfectly every month.
As you move from left to right across the electromagnetic spectrum, what happens to the wavelengths?
As you move from left to right across the electromagnetic spectrum, the wavelengths decrease.
What is the largest celestial object in our solar system?
The Sun
What are sunspots?
Sunspots are cooler, darker areas on the surface of the sun caused by magnetic activity.
What is the relationship between gravitational attraction and mass?
Gravitational attraction increases with the mass of the objects involved
What is the difference between a spring and neap tide?
What is a scientific theory and why are some theories rejected?
A scientific theory is a well-substantiated explanation of some aspect of the natural world. Theories are rejected if new evidence contradicts them or if they fail to explain new observations.
Place the following celestial bodies in order from largest to smallest. Asteroid, Meteor, Comet.
Comet
Asteroid
Meteor
What type of stars have a higher absolute brightness (Luminosity) than our sun?
Stars such as blue giants and supergiants have a higher absolute brightness than our sun.
Why does the moon have a great influence on our tides?
The moon's gravitational pull affects the Earth's oceans, causing tides.
Where is the moon positioned during a full moon in relation to the sun and earth?
During a full moon, the moon is positioned opposite the Sun, with Earth in between.
How do scientists collect data from space?
Scientists collect data from space using telescopes, satellites, space probes, and other instruments.
What is the main difference between terrestrial planets and gas giants?
Terrestrial planets are rocky and smaller, while gas giants are composed mostly of gases and are much larger.
What two factors does luminosity of stars depend on?
Luminosity depends on the star's size and temperature.
What three factors cause seasons?
Seasons are caused by the tilt of the Earth's axis, the Earth's orbit around the Sun, and the varying angle of sunlight received at different times of the year.
Name all 8 phases of the moon starting with new moon and increasing light
new moon, waxing Cres. , first quarter, waxing gibbous, full moon, waning gibbious, third quarter, waning crescent
What property of Venus gives it the designation as the “hottest” planet?
Venus has a thick atmosphere composed mainly of carbon dioxide, which creates a strong greenhouse effect, making it the hottest planet.