BOOTCAMP EQUIVALENT EXPERIENCE SC.8.E.5.7

Which planet is closest to the Sun?

• Mercury

• Mars

Answer explanation

Mercury is the closest planet to the Sun, orbiting at an average distance of about 57.91 million kilometers. Mars, on the other hand, is farther away, making Mercury the correct answer.

How does the gravitational force on the Moon compare to that on Earth?

• It is stronger on the Moon.

• It is weaker on the Moon.

Answer explanation

The gravitational force on the Moon is weaker than on Earth due to its smaller mass and size. This results in a lower gravitational pull, making objects weigh less on the Moon compared to their weight on Earth.

Tags

NGSS.MS-PS2-4

Which planet is the farthest from the Sun?

• Uranus

• Neptune

Answer explanation

Neptune is the farthest planet from the Sun in our solar system, located beyond Uranus. It is the eighth planet, while Uranus is the seventh, making Neptune the correct answer.

Tags

NGSS.MS-ESS1-3

Which planet has a thick atmosphere composed mostly of nitrogen and oxygen?

• Earth

• Jupiter

Answer explanation

Earth has a thick atmosphere primarily made up of nitrogen (about 78%) and oxygen (about 21%). In contrast, Jupiter's atmosphere is mostly hydrogen and helium, making Earth the correct choice.

Which planet has the slowest orbital speed around the Sun?

• Neptune

• Saturn

Answer explanation

Neptune has the slowest orbital speed around the Sun, taking about 165 Earth years to complete one orbit. Its distance from the Sun and lower gravitational pull contribute to this slower speed compared to Saturn.

Which planet has a gravitational force most similar to Earth's?

• Mars

• Venus

Answer explanation

Venus has a gravitational force of about 8.87 m/s², which is approximately 90% of Earth's 9.81 m/s². In contrast, Mars has a much lower gravity of about 3.71 m/s², making Venus the planet with gravity most similar to Earth's.

Tags

NGSS.MS-PS2-4

Which planet is known for having the most extreme temperature variations due to its thin atmosphere?

• Mercury

• Earth

Answer explanation

Mercury is known for its extreme temperature variations, ranging from very hot during the day to extremely cold at night, due to its thin atmosphere that cannot retain heat.

Which planet has the second fastest orbital speed around the Sun?

• Venus

• Jupiter

Answer explanation

Venus has the second fastest orbital speed around the Sun, traveling at about 35.02 km/s. Mercury is the fastest, while Jupiter, being much larger and farther from the Sun, has a slower orbital speed.

Which planet is known for having a dense atmosphere with clouds of sulfuric acid?

• Venus

• Mars

Answer explanation

Venus is known for its thick atmosphere, primarily composed of carbon dioxide, with clouds of sulfuric acid. This makes it the hottest planet in our solar system, unlike Mars, which has a thin atmosphere.

• All planets are kept in orbit because of the ​ (a)   .

• Sun’s gravity

• Earth's magnetic field

Answer explanation

All planets are kept in orbit due to the Sun’s gravity, which exerts a strong gravitational pull, keeping them in their respective paths. Earth's magnetic field does not influence planetary orbits.

Tags

NGSS.MS-PS2-4

NGSS.MS-ESS1-2