A textbook lists four regions: infrared, radio waves, ultraviolet and X-rays. Which list places them in order from the longest wavelength to the shortest wavelength?

Four regions are written on cards: microwaves, visible light, gamma rays and infrared. Which order runs from the lowest frequency to the highest frequency?

A scientist reads across a spectrum chart starting at radio waves and finishing at gamma rays. How do wavelength and frequency change along that path?

On the electromagnetic spectrum, one region lies directly between infrared and ultraviolet. Which region is it?

A spectrum chart runs radio, ___, infrared, visible light from the longest wavelength to the shortest. Which region belongs in the gap?

A student arranges cards for gamma rays, ultraviolet, visible light and X-rays from the highest frequency to the lowest frequency. Which arrangement is correct?

Listing the spectrum in the order radio waves, microwaves, infrared, visible, ultraviolet, X-rays, gamma rays puts it in order from the shortest wavelengths to the longest.

Within visible light, red light has the longest wavelength and violet light the shortest. Which color of visible light therefore has the highest frequency?

A list ordered from the shortest wavelength to the longest begins gamma rays, X-rays, ultraviolet, visible light, infrared. Which pair finishes the list in order?

Three regions are jumbled on a worksheet: X-rays, microwaves, visible light. Which list places them in order from the lowest frequency to the highest frequency?

The regions of the spectrum are ordered by wavelength from longest to shortest. Which region comes last on that list, with the shortest wavelengths of all?

A spectrum poster is torn so that only radio waves, microwaves and infrared are left side by side. Which property is greatest for the radio waves in that group?

An antenna picks up radiation with a wavelength of 1500 meters. Which region of the electromagnetic spectrum is this radiation in?

A sensor in a laboratory measures radiation with a wavelength of 0.03 meters, which is 3 centimeters. Which region of the electromagnetic spectrum is it detecting?

A camera on a research plane records radiation with a wavelength of 10 micrometers, which is 0.00001 meters. Which region of the spectrum is this?

A spectrometer in class reads a wavelength of 650 nanometers, which is 0.00000065 meters. Which region of the electromagnetic spectrum does this reading fall in?

A lamp in a laboratory gives off radiation with a wavelength of 250 nanometers, which is 0.00000025 meters. Which region of the spectrum does that radiation belong to?

A hospital machine produces radiation with a wavelength of 0.05 nanometers. Which region of the electromagnetic spectrum is that radiation in?

A car receiver is tuned to a signal with a frequency of 98.1 megahertz. Which region of the electromagnetic spectrum is that signal in?

An engineer measures radiation with a frequency of 2.45 gigahertz, a wavelength of about 12 centimeters. Which region of the electromagnetic spectrum is it?

A telescope detector records radiation with a frequency of 600 trillion hertz. Which region of the electromagnetic spectrum has that frequency?

A space telescope records radiation with a frequency of 1 followed by 21 zeros hertz. Which region of the spectrum is this?

A telescope carries one detector for infrared radiation and another for X-rays. Which statement correctly compares the two kinds of radiation?

A distant star gives off both radio waves and visible light. How does the radio wave compare with the visible light?

A shielded box holds a gamma ray source and a warm plate giving off infrared. Which radiation carries more energy per wave, and why?

Sunscreen blocks the ultraviolet radiation that burns skin but lets visible light through. How does ultraviolet compare with visible light?

One wave has a wavelength of 0.10 meters and another has a wavelength of 100 meters. Both travel through a vacuum. Which one has the higher frequency?

X-rays have a higher frequency than visible light.

A remote control sends out infrared while a phone antenna sends out radio waves. Which signal has the shorter wavelength?

A weather satellite detects microwaves at 3 centimeters and a second instrument detects infrared at 10 micrometers. Which statement compares the two correctly?

A lamp gives off ultraviolet and a machine gives off X-rays. Which radiation lies closer to visible light on the spectrum, and what does that mean for its wavelength?

A radio mast broadcasts at 1 megahertz and a radar dish beside it works at 10 gigahertz. How do the radar waves compare with the broadcast waves?

A lightning flash gives off radio waves and visible light at the same instant. Detectors sit 30 kilometers away. Which signal reaches the detectors first?

Visible light makes up only a narrow band of the whole electromagnetic spectrum.

Microwaves can only travel if there is a material medium such as air or water for them to pass through.

Sunlight crosses about 150 million kilometers of space to reach Earth. What does this show about electromagnetic waves?

Radio waves, visible light and gamma rays all arrive at a detector from a distant object. What do all three transfer to that detector?

In a vacuum every electromagnetic wave travels at about 300,000,000 meters per second. A wave in that vacuum with a higher frequency must therefore have what?

Radio waves, infrared and gamma rays all move through the vacuum of space. Which property is the same for all three?

A student says visible light is a wave but X-rays are tiny bits of matter fired out of a machine. Which correction is accurate?