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Explanation Most of the earth's energy comes from the sun. The sun is the primary source of energy for the planet, providing heat and light through various processes such as nuclear fusion. This energy is essential for sustaining life on earth, as it drives weather patterns, photosynthesis in plants, and the overall functioning of ecosystems. Without the sun's energy, the earth would be a cold and lifeless planet.
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2.
When an object is in motion what type of energy dose the object have?
A.
Kinetic
B.
Potential
C.
Mechanical
D.
Electrical
E.
Thermal
Correct Answer
A. Kinetic
Explanation When an object is in motion, it possesses kinetic energy. Kinetic energy is the energy of motion and is dependent on the object's mass and velocity. The faster an object is moving or the heavier it is, the more kinetic energy it has. This energy is associated with the object's ability to do work or cause change due to its motion.
Explanation The correct answer includes a comprehensive list of three types of energy: Mechanical, Kinetic, and Potential. It also includes additional types of energy such as electrical, chemical, thermal, gravitational, nuclear, and magnetic. These additional types expand the range of energy forms beyond the initial three, providing a more complete answer.
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4.
How can we preserve electrical energy?
A.
Not eating
B.
Turning off lights and TV's...... recycling
C.
Keeping the lights on
D.
Not recycling
Correct Answer
B. Turning off lights and TV's...... recycling
Explanation One way to preserve electrical energy is by turning off lights and TV's when they are not in use. This helps to reduce the amount of electricity being consumed, leading to energy conservation. Additionally, recycling can also contribute to energy preservation as it reduces the need for producing new materials from raw resources, which often requires a significant amount of energy. By reusing and recycling materials, we can minimize the energy consumption associated with the production process.
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5.
Were does nuceal energy come from?
A.
A powerplant
B.
A match
C.
A candle
D.
The sun
E.
The white houes
Correct Answer
A. A powerplant
Explanation Nuclear energy comes from a powerplant. Nuclear power plants generate electricity by harnessing the energy released from nuclear reactions, specifically nuclear fission. In these power plants, uranium or plutonium atoms are split apart in a controlled manner, releasing a large amount of energy in the form of heat. This heat is then used to produce steam, which drives a turbine connected to a generator, ultimately generating electricity. Therefore, a powerplant is the source of nuclear energy.
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6.
What is stored energy?
A.
Thermal
B.
Radiant
C.
Chemical
D.
Potential
Correct Answer
D. Potential
Explanation Potential energy is the stored energy that an object possesses due to its position or state. It is the energy that can be converted into other forms of energy and can be released to do work. In the context of the given options, thermal energy refers to the energy associated with heat, radiant energy refers to electromagnetic waves, and chemical energy refers to the energy stored in chemical bonds. Therefore, potential energy is the most appropriate option as it encompasses the concept of stored energy in general.
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7.
Radiant energy is like
A.
A candle
B.
A fan
C.
A TV
D.
A glass of water
Correct Answer
A. A candle
Explanation Radiant energy is like a candle because both emit light and heat. Just like a candle produces light and heat energy through the process of combustion, radiant energy refers to the energy that is transmitted in the form of electromagnetic waves, including visible light and infrared radiation. Both a candle and radiant energy emit energy in the form of light, making them similar in their ability to produce illumination and warmth.
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8.
What types of energy is in a battery?
A.
Mechanical
B.
Chemical
C.
Thermal
D.
Mechanical
E.
Magnet
Correct Answer
B. Chemical
Explanation Batteries store and release energy through a chemical reaction. When a battery is charged, chemical energy is stored in the battery. When the battery is connected to a circuit, the chemical reaction occurs, converting the stored chemical energy into electrical energy. Therefore, the correct answer is chemical energy.
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9.
What type of energy dose a window have?
A.
Mechanical
B.
Electromical
C.
Chemical
D.
Light
E.
Gravitational
Correct Answer
E. Gravitational
Explanation A window does not possess mechanical, electrical, chemical, or light energy. However, it does have gravitational energy because it is affected by the force of gravity. This can be seen when a window is opened or closed, as it moves against the force of gravity.
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10.
If a ball is being throw up in the air what two types of energy is happening.
A.
Radiant and chemical
B.
Thermal and potential
C.
Kinetic and potential
D.
Nuclear and kinetic
Correct Answer
C. Kinetic and potential
Explanation When a ball is thrown up in the air, it possesses both kinetic and potential energy. Kinetic energy is the energy of motion, and in this case, the ball has kinetic energy as it moves upwards. Potential energy is the energy that an object possesses due to its position or state, and in this case, the ball has potential energy as it gains height. As the ball reaches its highest point, its kinetic energy decreases to zero and is converted back into potential energy.
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