Renewable Sources Of Energy

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| By Teaching_mama
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Quizzes Created: 3 | Total Attempts: 22,405
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  • 1/13 Questions

    Energy cannot be created or destroyed. but can be changed from one form to another.

    • True
    • False
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About This Quiz

Explore the fundamentals of renewable energy through this engaging quiz titled 'Renewable Sources of Energy'. Test your knowledge on how different technologies like hydroelectric plants, biomass, and geothermal energy convert natural resources into electricity, along with basic physics concepts about forces and motion.

Renewable Energy Quizzes & Trivia

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  • 2. 

    ________________ ferment farm waste and unwanted plants to produce methane gas.

    • Hydroelectric plants

    • Wind

    • Biomass

    Correct Answer
    A. Biomass
    Explanation
    Biomass refers to the process of using organic materials such as farm waste and unwanted plants to produce methane gas. This process involves the decomposition of these materials through a natural fermentation process, which results in the production of methane gas. Hydroelectric plants generate electricity using the power of flowing water, while wind power harnesses the energy of wind to generate electricity. Therefore, biomass is the correct answer as it specifically relates to the process of fermenting organic materials to produce methane gas.

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  • 3. 

    Acceleration increases as force applied on an object increases.

    • True

    • False

    Correct Answer
    A. True
    Explanation
    According to Newton's second law of motion, the acceleration of an object is directly proportional to the net force applied on it. This means that as the force applied on an object increases, its acceleration will also increase. Therefore, the statement "Acceleration increases as force applied on an object increases" is true.

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  • 4. 

    _____________ are forces in opposite directions and equal in size.

    • Balanced forces

    • Enertia

    Correct Answer
    A. Balanced forces
    Explanation
    Balanced forces refer to two forces that are equal in magnitude and opposite in direction. When balanced forces act on an object, they cancel each other out, resulting in no net force and therefore no acceleration. This means that the object will either remain at rest if it was initially at rest, or continue moving at a constant velocity if it was already in motion. In other words, the forces are balanced because they counterbalance each other, resulting in a state of equilibrium.

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  • 5. 

    ________________ converts the energy of falling water into electricity.

    • Hydroelectric plants

    • Wind

    • Biomass

    Correct Answer
    A. Hydroelectric plants
    Explanation
    Hydroelectric plants convert the energy of falling water into electricity. This is achieved by harnessing the kinetic energy of flowing or falling water and using it to turn turbines, which in turn generate electricity. Water is directed through large pipes or channels, and as it flows, it spins the turbines. This rotational motion is then converted into electrical energy using generators. Hydroelectric power is a renewable and clean energy source, as it relies on the natural water cycle and does not produce harmful emissions.

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  • 6. 

    ________________converts energy of steam that comes from hot rock layers into electricity.

    • Hydroelectric plants

    • Wind

    • Biomass

    • Geothermal

    Correct Answer
    A. Geothermal
    Explanation
    Geothermal energy is generated by harnessing the heat from the Earth's hot rock layers. This energy is then used to convert steam into electricity. Unlike hydroelectric plants that use flowing water, wind turbines that rely on wind power, or biomass plants that burn organic materials, geothermal power plants tap into the Earth's natural heat to produce electricity. Therefore, geothermal is the correct answer as it specifically refers to the conversion of steam from hot rock layers into electricity.

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  • 7. 

    The object at rest will remain at rest and an object in motion will continue to be in constant motion unless an external force acts on it.

    • True

    • False

    Correct Answer
    A. True
    Explanation
    This statement is known as Newton's First Law of Motion, also called the law of inertia. It states that an object at rest will stay at rest, and an object in motion will continue moving in a straight line at a constant speed, unless acted upon by an external force. In other words, objects tend to resist changes in their state of motion.

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  • 8. 

    An unbalanced force can change the motion of an object.

    • True

    • False

    Correct Answer
    A. True
    Explanation
    An unbalanced force can change the motion of an object because it causes a net force on the object, resulting in acceleration. According to Newton's second law of motion, the acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass. Therefore, when an unbalanced force acts on an object, it can cause it to speed up, slow down, or change direction, altering its motion.

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  • 9. 

    A force is push or pull that can cause an object to move, change its speed and direction and change its shape or size.

    • True

    • False

    Correct Answer
    A. True
    Explanation
    A force is defined as a push or pull that can cause an object to move, change its speed and direction, and also change its shape or size. This statement accurately describes the nature and effects of a force, making the correct answer true. Forces are responsible for any kind of motion or deformation in objects, and understanding their properties is crucial in the study of physics and mechanics.

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  • 10. 

    Boys of the same weight are pushing a box against each other.

    • Balanced

    • Unbalanced

    • Enertia

    Correct Answer
    A. Balanced
    Explanation
    The given answer "balanced" is correct because if the boys are of the same weight, it means they have equal force being applied in opposite directions. This creates a state of equilibrium where the forces cancel each other out, resulting in no net force on the box. Therefore, the box will remain stationary or move with a constant velocity, indicating a balanced situation.

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  • 11. 

    _____________ is the tendency of an object to resist any change in its state of motion.

    • Unbalanced force

    • Enertia

    Correct Answer
    A. Enertia
    Explanation
    Inertia is the tendency of an object to resist any change in its state of motion. This means that an object at rest will stay at rest, and an object in motion will continue moving at a constant velocity, unless acted upon by an external force. Inertia is a property of matter and is related to an object's mass. It is the reason why we feel a force pushing us backwards when a moving vehicle suddenly stops.

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  • 12. 

    Acceleration decreases as the mass of the object decreases.

    • True

    • False

    Correct Answer
    A. False
    Explanation
    The statement is false because acceleration is actually inversely proportional to the mass of an object. This means that as the mass of an object decreases, its acceleration increases. This can be explained by Newton's second law of motion, which states that the acceleration of an object is directly proportional to the net force applied to it and inversely proportional to its mass. Therefore, if the mass decreases while the force remains constant, the acceleration will increase.

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  • 13. 

    If force is zero.

    • Balanced

    • Unbalanced

    • Enertia

    Correct Answer
    A. Enertia
    Explanation
    If the force is zero, it means that there is no net force acting on the object. In such a scenario, the object will remain at rest or continue to move with a constant velocity, depending on its initial state. The term "enertia" is likely a misspelling or a typo for "inertia." Inertia is the property of an object to resist changes in its motion, and in this context, it would be applicable as the object would continue its state of rest or uniform motion due to its inertia.

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  • Current Version
  • Oct 04, 2024
    Quiz Edited by
    ProProfs Editorial Team
  • Jan 20, 2011
    Quiz Created by
    Teaching_mama
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