8.8.3 - Radiation
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Practice Questions
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What is radiation?
💡 Hint: Think about how heat can travel without a medium.
Name an example of radiation.
💡 Hint: Consider how we feel warmth from the sun.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What is the primary mode of heat transfer that does not require a medium?
💡 Hint: Think about how we receive warmth from the sun.
True or False: Radiation can occur in a vacuum.
💡 Hint: Remember how the sun's heat reaches us.
1 more question available
Challenge Problems
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If you're 150 million kilometers away from the sun, how does sunlight reach Earth? Discuss the mechanism behind radiation.
💡 Hint: Think about how energy travels in waves.
A person stands 1 meter away from a heater. If they move to 2 meters away, how does the radiation intensity change? Calculate the relative intensity using the inverse square law for radiation.
💡 Hint: Consider how distance affects the spread of heat.
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