Module 2 Heat Transfer Quiz

1. What does the word renewable resource mean?

Can be used and reused

Can only be used once or twice

Can be used only once

The term "renewable resource" refers to a resource that can be used repeatedly without being depleted or permanently damaged. This means that it can be utilized and then replenished naturally over time, ensuring its availability for future use. Examples of renewable resources include solar energy, wind power, and water.

Explanation

The term "renewable resource" refers to a resource that can be used repeatedly without being depleted or permanently damaged. This means that it can be utilized and then replenished naturally over time, ensuring its availability for future use. Examples of renewable resources include solar energy, wind power, and water.

2. What are some renewable resources?

Our bodies, water, sun, wind

Electricity, gasoline

Oil or coal

Renewable resources are those that can be replenished naturally or are continuously available. Our bodies, water, sun, and wind are considered renewable resources because they are naturally occurring and can be used without depleting their supply. Our bodies can regenerate and provide energy, water can be recycled through the water cycle, the sun provides solar energy, and wind can be harnessed for wind power. However, electricity, gasoline, oil, and coal are not renewable resources as they are derived from finite sources and their extraction or production processes are not sustainable in the long term.

Explanation

Renewable resources are those that can be replenished naturally or are continuously available. Our bodies, water, sun, and wind are considered renewable resources because they are naturally occurring and can be used without depleting their supply. Our bodies can regenerate and provide energy, water can be recycled through the water cycle, the sun provides solar energy, and wind can be harnessed for wind power. However, electricity, gasoline, oil, and coal are not renewable resources as they are derived from finite sources and their extraction or production processes are not sustainable in the long term.

3. What kind of a sound pitch does a dog hear?

Low

High

Medium

Dogs have a higher range of hearing compared to humans. They can hear sounds at higher frequencies than we can. Therefore, a dog hears high-pitched sounds better than low or medium-pitched sounds.

Explanation

Dogs have a higher range of hearing compared to humans. They can hear sounds at higher frequencies than we can. Therefore, a dog hears high-pitched sounds better than low or medium-pitched sounds.

4. What are the ocean currents called that disperse heat all over the world?

Ocean currents

Convection currents

Wave currents

Convection currents are ocean currents that disperse heat all over the world. Convection refers to the process of heat transfer through the movement of fluid or gas. In the case of ocean currents, warm water near the equator rises and moves towards the poles, while cold water near the poles sinks and moves towards the equator. This continuous movement of water helps distribute heat and regulate global temperatures. Therefore, convection currents are responsible for dispersing heat throughout the world's oceans.

Explanation

Convection currents are ocean currents that disperse heat all over the world. Convection refers to the process of heat transfer through the movement of fluid or gas. In the case of ocean currents, warm water near the equator rises and moves towards the poles, while cold water near the poles sinks and moves towards the equator. This continuous movement of water helps distribute heat and regulate global temperatures. Therefore, convection currents are responsible for dispersing heat throughout the world's oceans.

5. What alternative energy sources can we use instead of fossil fuel? Mark all that apply

Sun

Wind

Water

Nuclear

Gasoline

The question asks for alternative energy sources to replace fossil fuels. The options given are Sun, wind, water, nuclear, and gasoline. Among these options, Sun, wind, water, and nuclear are all viable alternative energy sources as they are renewable and have the potential to generate electricity without relying on fossil fuels. Gasoline, on the other hand, is not an alternative energy source as it is derived from fossil fuels itself.

Explanation

The question asks for alternative energy sources to replace fossil fuels. The options given are Sun, wind, water, nuclear, and gasoline. Among these options, Sun, wind, water, and nuclear are all viable alternative energy sources as they are renewable and have the potential to generate electricity without relying on fossil fuels. Gasoline, on the other hand, is not an alternative energy source as it is derived from fossil fuels itself.

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