8th Unit #7 The Universe Summative Assessment

The Andromeda Galaxy is the nearest spiral galaxy to the Milky Way Galaxy. Which unit would best be used to represent the distance between the Milky Way Galaxy and the Andromeda Galaxy? (8.E.5.1)

• astronomical unit

• kilometer

• light year

• mile

Which of the following is NOT an example of the use of satellites in science? (8.E.5.10)

• studying Earth’s features

• collecting weather information

• wireless communication

• collecting samples on other planets

Sarah and her father used their telescope to look at Venus and various stars. The stars looked like tiny points of light while Venus looked much larger. Which of the following best explains why? (8.E.5.1)

• There are more stars than planets in our solar system.

• Stars are much smaller than planets.

• Venus is much closer to Earth than are the stars.

• Stars reflect less light than planets.

The chart shows the average distance in astronomical units (AU) between each planet and the Sun.

Which planet would make the closest approach to Earth as the planet orbits the Sun? (8.E.5.1)

• Mars

• Mercury

• Jupiter

• Venus

Rachel is learning about electromagnetic radiation that comes from the Sun. What types of electromagnetic radiation does the Sun emit? (8.E.5.11)

• gamma rays and ultraviolet radiation

• ultraviolet radiation only

• infrared, visible, and ultraviolet radiation

• all types of electromagnetic radiation

As part of his job at the U.S. Forestry Service, Scott uses satellite images to identify forest areas that have been cleared due to logging. The satellite images, which show forests appearing cooler and cleared areas appearing warmer, are produced using electromagnetic radiation. Which part of the electromagnetic spectrum does Scott’s technology most likely use? (8.E.5.11)

• infrared radiation

• gamma rays

• radio waves

• visible light

Isabella is learning about types of electromagnetic waves. What is the difference between a microwave and a gamma wave?

• Microwaves are common and gamma waves are rare.

• Microwaves are silent and gamma rays are audible (you can hear them).

• Microwaves were invented by humans and gamma waves were not.

• Microwaves and gamma waves have different wavelengths.

Wavelength and frequency are related. Gamma rays, microwaves, visible light, and infrared rays all have different frequencies. Which of the following lists them in the correct order from longest wavelength to shortest wavelength? (8.E.5.11)

• visible light, microwaves, infrared rays, gamma rays

• infrared rays, microwaves, visible light, gamma rays

• gamma rays, infrared rays, microwaves, visible light

• microwaves, infrared, visible light, gamma rays

Sam looks at the chart below of the electromagnetic spectrum. Sam describes what he notices as he looks from left to right at the diagram. Which of Sam’s descriptions is TRUE? (8.E.5.11)

• The wavelength increases and the frequency increases.

• The wavelength decreases and the frequency increases.

• The wavelength decreases and the frequency decreases.

• The wavelength increases and the frequency decreases.

The side of the Moon facing away from Earth is called the dark side of the moon. Which of the following would be most useful for studying features of the dark side of the Moon? (8.E.5.10)

• a telescope on Earth’s surface

• a telescope orbiting Earth

• a satellite orbiting the Moon

• a satellite orbiting Earth