Questions and Answers
What energy conversion occurs in a photovoltaic (PV) cell?
What type of energy conversion occurs in a battery?
Chemical-Electrical
What kind of energy conversion occurs in a bicycle?
Mechanical-Motion
What is the energy conversion in a wind turbine?
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What energy conversion takes place in a handwarmer?
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What type of energy conversion occurs in a lightstick?
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What is the energy conversion in a flashlight?
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What energy conversion occurs in a radiometer?
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What type of energy conversion does a BBQ grill perform?
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What is the energy conversion that happens in the sun?
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What type of energy conversion occurs in a firefly?
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What kind of energy conversion does an athlete perform?
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What is the energy conversion in a car engine?
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What type of energy conversion occurs in a firecracker?
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An endothermic reaction absorbs heat.
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An exothermic reaction releases heat.
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Study Notes
Energy Conversions in Various Devices
- Radiant to Electrical: Conversion occurs in photovoltaic (PV) cells, converting sunlight into usable electricity.
- Chemical to Electrical: Batteries store chemical energy and convert it into electrical energy for powering devices.
- Mechanical to Motion: Bicycles convert the rider's pedaling (mechanical energy) into motion to propel forward.
- Motion to Electrical: Wind turbines harness kinetic energy from wind and convert it into electrical energy.
- Chemical to Thermal: Handwarmers utilize chemical reactions to release heat for warmth.
- Chemical to Radiant: Lightsticks operate through chemical reactions that emit light.
- Electrical/Chemical to Radiant/Thermal: Flashlights convert stored battery energy into light and heat.
- Radiant to Thermal/Motion: Radiometers convert light energy into heat and movement, demonstrating thermal effects.
- Chemical to Thermal/Radiant: BBQ grills convert the chemical energy from fuel into heat and light for cooking.
- Nuclear to Thermal/Radiant: The sun's energy conversion is primarily nuclear, emitting heat and light to Earth.
- Chemical to Thermal/Radiant: Fireflies produce light through chemical reactions involving bioluminescence.
- Chemical to Mechanical/Motion: Athletes convert stored chemical energy from food into mechanical energy for physical activities.
- Chemical to Sound/Mechanical/Electrical: Car engines transform chemical energy of fuel into sound, motion, and electrical energy to operate.
- Endothermic Reactions: Chemical processes that absorb heat from their surroundings.
- Exothermic Reactions: Chemical processes that release heat into their surroundings.
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Description
Explore the various energy conversions in this engaging flashcard quiz. Each card highlights a different process, such as radiant to electrical in PV cells and chemical to electrical in batteries. Test your knowledge on how energy transforms in everyday devices and systems.
