Freezing outside on a cold day.
A person shivering in cold weather, wearing winter clothes and headphones.
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Show Answer Key & Explanations
Step-by-step solution for: Activity 2Energy Worksheet 2: Conduction, Convection and ...
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Show Answer Key & Explanations
Step-by-step solution for: Activity 2Energy Worksheet 2: Conduction, Convection and ...
The task appears to involve identifying the type of heat transfer or energy transformation occurring in each scenario. Let's analyze each image and determine the appropriate explanation:
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- Explanation: This involves conduction and radiation.
- Conduction: The cold air transfers its low temperature to your body through direct contact.
- Radiation: Your body loses heat to the surrounding environment through infrared radiation.
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- Explanation: This involves evaporation (a form of vaporization).
- As water boils, it changes from a liquid to a gas (steam), releasing latent heat energy.
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- Explanation: This involves conduction.
- Heat is transferred directly from the hot pan to your hand when you touch it.
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- Explanation: This involves melting (a phase change).
- The ice cubes absorb heat from the lemonade as they melt, lowering the temperature of the drink.
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- Explanation: This involves radiation.
- The sun emits electromagnetic radiation (primarily infrared and visible light), which warms your body when you are exposed to it.
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- Explanation: This involves convection and radiation.
- Convection: Hot air rises from the fire and carries heat to the marshmallows.
- Radiation: The fire emits infrared radiation, which directly heats the marshmallows.
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- Explanation: This involves resistance heating.
- Electricity passes through a resistive element inside the toaster, generating heat through the process of electrical resistance.
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- Explanation: This involves conduction and convection.
- Conduction: Heat is transferred directly from the hot surface of the furnace to the bottom of the kettle.
- Convection: As the water inside the kettle heats up, convection currents circulate the water, ensuring even heating.
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1. Freezing outside on a cold day: Conduction and Radiation
2. Steam piping out of a teapot: Evaporation
3. Burning your hand on a hot pan: Conduction
4. Ice cubes keeping lemonade cold: Melting
5. Laying out in the sun: Radiation
6. Roasting marshmallows over a fire: Convection and Radiation
7. Making toast in a toaster: Resistance Heating
8. Heating a kettle on a hot furnace: Conduction and Convection
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Boxed Final Answer:
\[
\boxed{
\begin{array}{ll}
9) & \text{Conduction and Radiation} \\
10) & \text{Evaporation} \\
11) & \text{Conduction} \\
12) & \text{Melting} \\
13) & \text{Radiation} \\
14) & \text{Convection and Radiation} \\
15) & \text{Resistance Heating} \\
16) & \text{Conduction and Convection} \\
\end{array}
}
\]
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9) Freezing outside on a cold day
- Explanation: This involves conduction and radiation.
- Conduction: The cold air transfers its low temperature to your body through direct contact.
- Radiation: Your body loses heat to the surrounding environment through infrared radiation.
---
10) Steam piping out of a teapot
- Explanation: This involves evaporation (a form of vaporization).
- As water boils, it changes from a liquid to a gas (steam), releasing latent heat energy.
---
11) Burning your hand on a hot pan
- Explanation: This involves conduction.
- Heat is transferred directly from the hot pan to your hand when you touch it.
---
12) Ice cubes keeping lemonade cold
- Explanation: This involves melting (a phase change).
- The ice cubes absorb heat from the lemonade as they melt, lowering the temperature of the drink.
---
13) Laying out in the sun
- Explanation: This involves radiation.
- The sun emits electromagnetic radiation (primarily infrared and visible light), which warms your body when you are exposed to it.
---
14) Roasting marshmallows over a fire
- Explanation: This involves convection and radiation.
- Convection: Hot air rises from the fire and carries heat to the marshmallows.
- Radiation: The fire emits infrared radiation, which directly heats the marshmallows.
---
15) Making toast in a toaster
- Explanation: This involves resistance heating.
- Electricity passes through a resistive element inside the toaster, generating heat through the process of electrical resistance.
---
16) Heating a kettle on a hot furnace
- Explanation: This involves conduction and convection.
- Conduction: Heat is transferred directly from the hot surface of the furnace to the bottom of the kettle.
- Convection: As the water inside the kettle heats up, convection currents circulate the water, ensuring even heating.
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Final Answers:
1. Freezing outside on a cold day: Conduction and Radiation
2. Steam piping out of a teapot: Evaporation
3. Burning your hand on a hot pan: Conduction
4. Ice cubes keeping lemonade cold: Melting
5. Laying out in the sun: Radiation
6. Roasting marshmallows over a fire: Convection and Radiation
7. Making toast in a toaster: Resistance Heating
8. Heating a kettle on a hot furnace: Conduction and Convection
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Boxed Final Answer:
\[
\boxed{
\begin{array}{ll}
9) & \text{Conduction and Radiation} \\
10) & \text{Evaporation} \\
11) & \text{Conduction} \\
12) & \text{Melting} \\
13) & \text{Radiation} \\
14) & \text{Convection and Radiation} \\
15) & \text{Resistance Heating} \\
16) & \text{Conduction and Convection} \\
\end{array}
}
\]
Parent Tip: Review the logic above to help your child master the concept of radiation convection conduction worksheet.
![Conduction, Convection and Radiation Worksheet [Print & Digital]](/images2/radiation-convection-conduction-worksheet/radiation-convection-conduction-worksheet-6.jpg)
