Waves Practice CSA

Which of the following types of electromagnetic radiation has the highest frequency?

• Radio waves

• Microwaves

• X-rays

• Gamma rays

What happens to the frequency of a wave as its wavelength increases?

• Frequency increases

• Frequency decreases

• Frequency remains the same

• Frequency doubles

In the electromagnetic spectrum, which type of radiation is directly above visible light in terms of frequency?

• Infrared

• Ultraviolet

• Microwaves

• Radio waves

The amplitude of a sound wave corresponds to the volume of the sound. The greater the amplitude, the louder the sound. Based on this information, which two waves have the loudest sound?

• A. Wave 1 and Wave 2

• B. Wave 1 and Wave 4

• C. Wave 2 and Wave 3

• D. Wave 3 and Wave 4

Many devices use the electromagnetic spectrum, including radios, cell phones, and medical equipment. When designing a device using the electromagnetic spectrum, which type of waves will provide the device with the MOST energy?

• waves that have longer wavelengths and lower frequencies

• waves that have shorter wavelengths and lower frequencies

• waves that have shorter wavelengths and higher frequencies

• waves that have longer wavelengths and higher frequencies

A scientist is designing a device that will mimic Earth's atmosphere by blocking high-energy waves from the Sun. Pick three high-energy waves that the device should be able to block.

• gamma ray

• ultraviolet

• X-ray

• radio

• infrared

Mac and Suzanne cut holes in the bottom of two cups and connect them with a string. When Mac whispers into one cup, Suzanne can hear him through the other. What is the best reason to explain why this happens?

• Sound waves can travel great distances.

• Sound waves from whispering have a higher frequency.

• Sound waves travel better through solids than gases.

• Sound waves produce an echo.

Which of the following is true of frequency and volume?

• The frequency increases as the volume of sound increases.

• The frequency decreases as the volume of sound increases.

• The frequency speeds up as the volume of sounds increases.

• The frequency is not affected as the volume of sound increases.

Which of the following explains a general rule for how the densities of different liquids affect the speed of sound waves?

• The speed of sound waves decreases as the density of the liquid increases.

• The speed of sound waves increases as the density of the liquid increases.

• The speed of sound waves is not affected by the density of liquids.

• The speed of sound waves is affected by the density of liquids, but there is no pattern in the data.

Which of the following devices would NOT use waves found in the electromagnetic spectrum?

• lamp

• loudspeaker

• radio

• TV remote