G8 Q3 Science Practice Assessment

The table below shows the range of frequencies, in Hertz (Hz), for part of the electromagnetic spectrum. Which of the following types of radiation has the longest wavelength? (8.E.5.11)

• Infrared

• Ultraviolet

• X-rays

• Gamma rays

Tags

NGSS.HS-PS4-1

An astronomer observes a sunspot. Which of the following describes this feature of the Sun? (8.E.5.6)

• a. a location where heat rises to the Sun's surface

• b. a location that produces most of the Sun's heat energy

• c. a location that is cooler than the other parts of the Sun's surface

• d. a location where energy and matter leave the Sun's atmosphere

Nancy observes the Moon from the same location outside each night for one week. She notices that when it first appears each night, the Moon is a little farther east than it was the night before. Which of the following is one explanation for her observation? (8.E.5.9)

• The Moon's speed of rotation changes as it revolves around Earth.

• The Moon revolves around Earth as Earth revolves around the Sun.

• The Moon and Earth take the same amount of time to complete one rotation.

• The Moon completes one rotation each time Earth completes one revolution.

Tags

NGSS.MS-ESS1-1

The Andromeda Galaxy was previously called the Great Andromeda Nebula because

• it was thought to be a cloud of gas and dust.

• it was thought to be a star cluster.

• it was thought to be a planet.

• it was thought to be a black hole.

Astronomers thought this patch of light was composed of glowing gases. In the 1900s, scientists determined the nebula was actually a spiral galaxy. Which of the following describes the relationship between this galaxy and other astronomical bodies? (8.E.5.2)

• This galaxy is the largest star and is found in the universe.

• The galaxy is surrounded by thousands of stars in the universe.

• The galaxy includes a universe that is composed of millions of stars.

• This galaxy is one of billions of galaxies in the universe and contains billions of stars.

Why does Saturn take longer to complete one orbit around the Sun than Earth does?

• Saturn has stronger gravity.

• Saturn is farther from the Sun.

• Saturn has a thicker atmosphere.

• Saturn is the only planet with rings.

Tags

NGSS.MS-ESS1-3

Which of the following correctly lists the order of objects in space from largest to smallest? (8.E.5.3)

• Earth, Milky Way, Universe, Solar System

• Universe, Solar System, Earth, Milky Way

• Universe, Milky Way, Solar System, Earth

• Earth, Universe, Solar System, Milky Way

Tags

NGSS.MS-ESS1-3

If the average distance between Earth and the Sun were doubled, what changes would occur in the Sun’s gravitational pull on the Earth and Earth’s period of revolution? (8.E.5.7)

• Gravitational pull would decrease and period of revolution would increase

• Gravitational pull would decrease and period of revolution would decrease

• Gravitational pull would increase and period of revolution would increase

• Gravitational pull would increase and period of revolution would decrease

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

If the distance between the Moon and Earth were to decrease steadily for one week, which water-level changes would be expected to occur? (8.E.5.9)

• High tides would get higher and low tides would get lower

• Both high tides and low tides would get higher

• Both high tides and low tides would get lower

• High tides would get lower and low tides would get higher

Tags

NGSS.MS-ESS2-4

NGSS.MS-PS2-4

Which unit would best be used to represent the distance between Mercury and Neptune? (8.E.5.1)

• astronomical unit

• kilometer

• light year

• mile