Astronomy
Moon
Motion
Directions
Extra

100

Galileo was the first person to use what?
What is a telescope?

100

What occurs when the moon casts its shadow on Earth?
What is a solar eclipse?

100

Earth’s tilted axis causes what?
What are seasons?

100

Perigee is when the moon is _____ to Earth.
What is closest?

100

A measure of the total amount of matter an object contains is called?
What is mass?

200

The true shape of planetary orbits was discovered by…
Who is Kepler?

200

How many days pass between a full moon and a new moon?
What is 2 weeks or 14 days?

200

The apparent westward movement of a planet against the background of stars is called…
What is retrograde motion?

200

The average distance on an AU in kilometers.
What is 150 million km?

200

The force of gravity goes with what measurement?
What is weight?

300

Which scientist determined the nature of the Forces that keep the planets in their orbits?
Who is Newton?

300

The moon lacks a sizable core helps support what hypothesis?
What is Giant-impact hypothesis?

300

Define rotation:
What is the turning or spinning of a body on its axis.

300

Earth is closest to the sun at a point called…
What is perihelion?

300

How old is the moon?
What is about the same age as Earth?

400

Who spent 20 years of their life finding the positions of the stars?
Who is Tyco Brahe?

400

Basaltic lave helps form _____ on the moon.
What is a Maria?

400

What movement causes the Earth to point in different directions?
What is precession?

400

107,000 kilometers per hour is the speed of what?
What is Earth's orbital speed?

400

The stars travel around an imaginary bowl/ sphere called what?
What is the celestial sphere?

500

Who concluded that Earth was round because it always cast a curved shadow during a lunar eclipse.
Who is Aristotle?

500

During the period that the moon’s phases are changing from new to full, the moon is…
What is waxing?

500

What is the shape a planet’s orbit?
What is elliptical?

500

Who made the first accurate measurement of the size of Earth?
Who is Eratosthenes?

500

Higher crater density is associated with _____ surfaces.
What is older?