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Heat Energy and Light
Heat Energy and Light
Check out the video for information about heat energy and light. Then use what you learned in the video to answer the questions below.
Check out the video for information about heat energy and light. Then use what you learned in the video to answer the questions below.
What Is Light?
What Is Light?
1. Light is electromagnetic radiation that acts like both a ___________ and a ___________.
2. The size of a wave is called its _________________. And how often it comes by is called it __________________. 3. Long wavelengths have _____________________ frequency.
4. Short wavelengths have ______________________ frequency.
5. Long wavelengths have ______________________ energy.
6. Short wavelengths have ______________________ energy.
7. ___________________ light is the range of light recognized by the retina of a human eye.
8. In the retina, _______________ measure brightness and _______________ are sensitive to the different colors of light.
9. What is the only thing that makes one kind of light different from another? ____________________________________
10. What is another example that gives off the full spectrum of light? ____________________________________
11. Is the light we see in the distant universe the same as the light we see and study on Earth?
Answers
Answers
What Is Light?
1. Light is electromagnetic radiation that acts like both a wave and a particle
2. The size of a wave is called its wavelength And how often it comes by is called it frequency.
3. Long wavelengths have low frequency.
4. Short wavelengths have high frequency.
5. Long wavelengths have low energy.
6. Short wavelengths have high energy.
7. Visible light is the range of light recognized by the retina of a human eye.
8. In the retina, rods measure brightness and cones are sensitive to the different colors of light.
9. What is the only thing that makes one kind of light different from another? Its wavelength
10. What is another example that gives off the full spectrum of light? The universe
11. Is the light we see in the distant universe the same as the light we see and study on Earth? Yes
Read a bit more about light and the electromagnetic spectrum. Use the information to answer the questions.
Read a bit more about light and the electromagnetic spectrum. Use the information to answer the questions.
Answers
Answers
White Light Spectrum
1. red; 780 – 622 nm
2. Orange; 6220-0597 nm
3. yellow; 597 – 577 nm
4. Green; 577 – 492 nm
5. blue; 492 – 475 nm
6. Indigo; 475 – 445 nm
7. violet; 445 – 390 nm
Electromagnetic Spectrum
Red orange yellow green blue indigo violet
1. gamma ray
2. radio
3. red is to the left of violet
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