D. Write TRUE if the statement about radiant energy is true and false 1. The sun and stars are the sources of radiant 2. Radiant energy travels in all directions as ele 3. Radiant energy is not helpful to people. 4. Light waves, radio waves, and X-rays are for 5. Radiant energy heats up and brightens the
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Answer:
1. True
- Like most stars, the sun is made up mostly of hydrogen and helium atoms in a plasma state. The sun generates energy from a process called nuclear fusion. The radiant energy travels to the Earth at a speed of 186,000 miles per second, the speed of light
2. True
- Radiation is the emission or transmission of energy in a straight line (like a 'ray' in geometry'). This line travels through space or some material, spreading out from the source in all directions; "radiating" out.
3. False
- Radiant energy is very important for example, there would be no life on Earth without radiant energy. Light energy is very useful, as it helps us to see the world around us.
4. True
- Radiant energy, energy that is transferred by electromagnetic radiation, such as light, X-rays, Light waves, Radio waves, gamma rays, and thermal radiation, which may be described in terms of either discrete packets of energy, called photons, or continuous electromagnetic waves.
5. True
- The Sun produces a lot of radiant energy, which is transmitted to Earth as light.
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