Knowledge Check #6 (TEKS 8.8A-B)

Which type of electromagnetic wave has the lowest frequency and is commonly used for communication technologies such as radio and television?

A student is watching the ocean waves at the beach. She notices that some waves are tall and crashing forcefully against the shore, while others are smaller and gentler. She remembers learning about waves in science class. Which of the following statements correctly compares the characteristics of these ocean waves?

While studying objects in the universe, scientists noticed that a quasar was emitting waves that had a frequency greater than 1.38 x 1022 Hz. Using the electromagnetic spectrum, the telescopes used by the scientists most likely detected which type of waves?

A portion of this diagram shows the visible light section of the electromagnetic spectrum. Which color of visible light has the lowest frequency, and thus, the lowest energy?

Compared to a red light, which of the following is greater for blue light?

Different types of waves are found in the electromagnetic spectrum. List the waves in order of decreasing frequency.

A telescope was able to detect electromagnetic waves with a wavelength of 108 meters.

Using the electromagnetic spectrum, what is the type of wave the telescopes detected?

The Hubble Space Telescope has captured many significant images of objects in space. It uses a series of specifically-designed mirrors, including one that is 2.4m in diameter. The mirrors of the Hubble Space Telescope primarily capture light in which portion of the electromagnetic spectrum?

When exposed to sunlight for long periods of time, it is recommended that you use sunscreen to prevent a sunburn. Sunscreen is designed to protect against which type of electromagnetic wave?

The temperature of a star determines the wavelength of visible light that is produced. The lower the temperature, the larger the wavelength and the higher the temperature, the shorter the wavelength. The visible part of the electromagnetic spectrum is shown. Stars with the highest temperatures will emit most of their light at wavelengths that are near—