Our Solar System Review

Which of the following terms refers to an object that orbits the sun and has enough gravity to be spherical but has not cleared the area of its orbit?

• comet

• asteroid

• dwarf planet

• planet

Which of the following statements about the solar system’s formation is true?

• The temperature was very cold.

• Gravity pulled together a cloud of gas and dust.

• Objects formed from the same materials.

• The planets formed at the same distance from the sun.

Which of the following two physical components do the sun and the Earth have in common?

• core and mantle

• core and atmosphere

• crust and atmosphere

• mantle and crust

Which of the following is true about all of the outer planets?

• Much of the material in these planets is solid.

• The surface of these planets is rocky.

• They have many moons.

• They all rotate in the same direction.

Which of the following do the objects in the four categories of small objects in the solar system all have in common?

• They all orbit the sun.

• They can all be found in the Oort cloud.

• They all contain a nucleus.

• They all are made of gas and ice.

Which of the following happens to the temperature of gases as they reach the top of the sun’s convection zone?

• It increases.

• It decreases.

• It does not change.

• There is no way to tell what happens.

Tags

NGSS.MS-PS1-4

Which of the following does a star’s absolute brightness depend on?

• distance and temperature

• size and temperature

• color and temperature

• distance and color

Which of the following factors determines whether a protostar becomes a star?

• surface temperature

• age

• color

• mass

Which of the following types of galaxies is the Milky Way an example of?

• spiral galaxy

• elliptical galaxy

• irregular galaxy

• globular cluster

Which of the following is one of the main uses of satellites?

• launching deep-space expeditions

• controlling the weather

• observing Earth’s surface

• preventing ozone depletion