The Electromagnetic Spectrum: Practice Quiz

Ten questions pulled at random. Regenerate any time for a fresh set.

1. 1. X-ray wavelengths are about:

   0.01–10 nm400–700 nm10–400 nm1–10 mm

2. 2. MRI uses radio waves to cause:

   Bond vibrationsMolecular rotationNuclear spin flipsElectron ionization

3. 3. Infrared radiation causes molecular bonds to:

   VibrateSplit nucleiIonizeRotate only

4. 4. Which order is correct from long to short wavelength?

   Visible, radio, gamma, UVX-ray, infrared, radio, gammaRadio, microwave, infrared, visibleGamma, X-ray, radio, visible

5. 5. As frequency increases, wavelength:

   DoublesDecreasesIncreasesStays the same

6. 6. The speed of light is:

   1.00 x 10¹⁰ m/s3.00 x 10⁸ m/s6.626 x 10⁻³⁴ m/s3.00 x 10⁶ m/s

7. 7. A wave with a frequency above 3 × 10¹⁹ Hz is:

   GammaInfraredRadioVisible

8. 8. Infrared wavelengths run roughly:

   10–400 nm0.01–10 nm700 nm to 1 mm1 mm to 1 m

9. 9. Which has the highest energy per photon?

   X-rayGammaUltravioletRadio

10. 10. As wavelength decreases, energy:

    Becomes zeroIncreasesStays constantDecreases