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Tema de la energia del libro de sexto de primaria

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Energy

Question 1 of 10

1

Which are characteristics of energy?

Select one or more of the following:

  • Energy has not got mass or volume

  • Energy has got volume

  • Energy can be contained within matter

  • Energy can be destroyed

  • Energy ca be perceived in various ways

  • Energy can measure

  • Energy can not transferred from one type of matter of another

Explanation

Question 2 of 10

1

Fill the blank spaces to complete the text.

energy. Anything that moves, like wind, water currents and falling objects, contain this type of energy.

energy. Combustibles or objects that can explode contain this type of energy. Burning a combustible converts its energy into heat and light

energy. This type of energy is perceived as heat.

energy. Some objects, such as the Sun or a flame, emit this type of energy called light.

energy. In nature, this energy causes ligtning in a storm.

energy. This type of energy attracts metal objects.

Explanation

Question 3 of 10

1

Energy got mass and volume like matter

Select one of the following:

  • True
  • False

Explanation

Question 4 of 10

1

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are certain materials or natural events, which emit energy that we can use. They can be or .

Explanation

Question 5 of 10

1

Renewable energy sources

Select one or more of the following:

  • The sun

  • Flowing water

  • Fossil fuels

  • Biomass

  • Coal

  • Natural Gas

  • Heat from the Earth

  • The wind

Explanation

Question 6 of 10

1

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Everything contains a certain amount of thermal energy that we can measure. This is called the .
is the transfer of thermal energy from one type of matter with a higher temperature to another type of matter with a lower temperature.

Explanation

Question 7 of 10

1

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Heat can be transferred in the following ways:

By . If we put a pan of cod water on a fire transfers firstly to the pan and then to the water.

At a . We can feel the heat from the Sun or from a flame without touching it

Explanation

Question 8 of 10

1

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Sound has got energy. It originates from something vibrating.

Explanation

Question 9 of 10

1

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Some materials react to light and produce a light phenomenon. The most common light phenomena are ( dispersion, depression, repression ), ( reflection, reflexion, relexion ) and ( refraction, retraccion, fraction ).

Explanation

Question 10 of 10

1

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If light travels through a material that slows it down, such as glass and water, it changes direction. This bending of light is called .
: white light separates into different colours when it passes through certain substances.
When the Sun sets over a still lake, we can see it reflected in the water. This is because part of the light is reflected from the surface of the water towards our eyes. This phenomenon is called

Explanation

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