Interpreting Spectra Worksheet
Grade 9 Science worksheet on interpreting different types of spectra, including emission and absorption spectra.
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Interpreting Spectra: Grade 9 Science
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Read each question carefully and provide your best answer. Refer to your knowledge of electromagnetic spectra and atomic structure.
The Electromagnetic Spectrum
1. Based on the diagram above, which type of electromagnetic radiation has the longest wavelength?
Gamma Rays
Radio Waves
Visible Light
X-rays
2. Which of the following statements about the relationship between frequency and wavelength is correct?
They are directly proportional.
They are inversely proportional.
They are unrelated.
One is the square of the other.
3. An emission spectrum is produced when electrons in an atom move from a higher energy level to a energy level, releasing photons.
4. An absorption spectrum occurs when light passes through a cool, dilute gas and specific are absorbed by the atoms in the gas.
5. Each element has a unique spectral fingerprint because of its unique electron .
6. The lines in an emission spectrum are at the exact same wavelengths as the dark lines in the absorption spectrum for the same element.
True
False
7. Hot, dense objects produce continuous spectra.
True
False
8. Briefly explain how scientists use spectral analysis to determine the composition of distant stars.
9. Differentiate between an emission spectrum and a continuous spectrum.