Earth Science Unit 4 Test

Front

Which of these separates the outer planets from the inner planets? Options: a. The Kuiper Belt, b. The asteroid belt, c. The Great Red Spot, d. A large magnetic field

Back

The asteroid belt

Front

Aside from Mercury's slow rotation, what is a factor that contributes to the planet's daily temperature fluctuation of about 600 °C?

Back

Its close proximity to the sun.

Front

When early Earth’s atmosphere formed, which gases were lost because Earth’s gravity was too weak? (Options: a. Oxygen and helium, b. Helium and nitrogen, c. Hydrogen and ozone, d. Helium and hydrogen)

Back

Helium and hydrogen

Front

Which of these are small bodies from which planets originated during the early formation of the solar system? Comets, Asteroids, Protoplanets

Back

Planetesimals

Front

Why does the moon have more impact craters on its surface than Earth does?

Back

Most of Earth's impact craters have been destroyed by plate tectonics and erosion.

Front

Where did the materials that formed Earth come from?

Back

The solar nebula

Front

In what way is Earth like the other inner planets? Options: a. It has a relatively high density, b. It has liquid water on its surface, c. It has a mostly hydrogen and helium core, d. It revolves around the sun in 24 hours or less

Back

It has a relatively high density.

Front

Which law describes the speed at which objects travel at different points in their orbits?

Back

Law of equal areas

Front

What does Kepler’s first law call the paths that planets follow as they orbit the sun?

Back

Ellipses

Front

Kepler’s third law describes the relationship between the average distance of a planet from the sun and which property of the planet’s motion?

Back

Orbital period