Exercise
Form 7: Light and Radiant Energy
In this engaging exercise, Form 7 students will explore the fascinating world of light and radiant energy through hands-on experiments and interactive activities, discovering how these forces impact our daily lives and the environment around us. Join us as we illuminate the principles of optics and energy transfer, fostering a deeper understanding of scientific concepts while sparking curiosity and creativity!
Questions
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MultiChoice
What device directly converts solar light energy into electrical energy?
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MultiChoice
What energy transformation takes place during photosynthesis in plants?
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MultiChoice
When light hits a black asphalt road on a sunny day, the road becomes hot. What transformation is this?
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MultiChoice
Which of the following forms of energy travels as electromagnetic waves?
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MultiChoice
In a solar-powered calculator, what is the initial energy input?
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MultiChoice
A radiometer has vanes that spin when placed under bright light. What energy transformation is demonstrated?
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MultiChoice
Fireflies glow in the dark. What energy conversion occurs inside their bodies?
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MultiChoice
When a solar water heater warms water on a roof, what energy change takes place?
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MultiChoice
What is radiant energy?
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MultiChoice
Laser light cutting through metal transforms light energy primarily into:
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MultiChoice
In a greenhouse, light passes through glass and heats up the interior soil and air. This transforms light into:
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MultiChoice
Phosphorescent glow-in-the-dark stickers absorb light energy and later re-emit it as: