Gravity
What is gravity?
Gravity is the invisible force that pulls stuff down.
What is astronomy?
The study of the planets, stars, and other objects in outer space.
What causes the seasons?
Seasons are caused by the earth's tilt and revolution/orbit around the sun.
What causes day and night?
The earth's rotation.
Name at least one type of technology that is used to study outer space that we have studied.
What direction does gravity pull?
Gravity pulls down towards earth, no matter where you are.
What kind of model is most accurate for our solar system?
A heliocentric model with the sun at the center.
It is 7:30 am and the sun hasn't risen yet. What season is it?
It is winter. The sun rises later in the winter.
1,000 mph.
What is a star chart/map?
A map that shows the positions of the sun, moon, and planets and how they travel.
Pluto has 15 times less gravity than earth. How high can you jump on Pluto?
15 times higher.
Who was the first person to use a telescope to look at the sky?
Galileo.
How are shadows related to the sun's position in the sky?
When the sun is higher, shadows are shorter. When the sun is lower, shadows are longer.
How does a shadow clock work?
A shadow clock uses the shadows the sun makes as it travels across the sky to measure time.
What is the name of the most famous space telescope.
The Hubble Space Telescope.
How is the mass of an object related to how much gravity it has?
The more massive/bigger an object, the more gravity it has. The less massive/smaller an object, the less gravity it has.
How many constellations have scientists split the sky into?
88.
What would happen to our seasons if the earth was no longer tilted?
We would not have seasons. (but we would still have day/night).
If one day on Jupiter is only 10 hours, how fast does the sun travel across Jupiter's sky in comparison to earth?
The sun travels across Jupiter's sky faster.
What kind of technology would be most useful if you wanted to study something you can't see?
Radio telescope.
If I drop a marble and a grape that are the same size at the same time, which will hit the ground first?
They will hit the ground at the same time.
What is a star trail and what causes it?
Star trails are when pictures of the sky make blurry spirals out of the stars. They are caused by the earth's movement.
Why do some places not experience seasons?
What would happen to day and night if the earth started spinning half as fast?
What is the difference between reflection and refraction?
Reflection is when an image bounces off of a reflective surface. Refraction is when an image passes through a transparent surface and is broken apart or bent.