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It is a fifith grade quiz on energy. It talks about potential energy and kinetic energy and other types of energy.

• 1.

### What is energy?

Energy is the ablity to cause changes in matter.
Explanation
The correct answer explains that energy is the ability to cause changes in matter. This means that energy has the power to bring about transformations or make things happen in the physical world. It implies that energy can be transferred or converted from one form to another, and it plays a fundamental role in various processes such as movement, heat generation, and chemical reactions.

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• 2.

### A coil that is magnetized only when an electric current flows thorugh it is

• A.

A battery

• B.

A generator

• C.

A conductor

• D.

An electromagnet

D. An electromagnet
Explanation
An electromagnet is a coil that becomes magnetized when an electric current flows through it. Unlike a permanent magnet, which always has a magnetic field, an electromagnet's magnetism can be controlled by the flow of electric current. When the current is turned off, the coil loses its magnetism. This property makes electromagnets useful in various applications, such as in electric motors, speakers, and magnetic resonance imaging (MRI) machines.

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• 3.

### What is energy?

Energy is the abilty to cause changes in matter.
Explanation
The answer provided accurately defines energy as the ability to cause changes in matter. Energy is a fundamental concept in physics and refers to the capacity of a system to do work or produce heat. It can exist in various forms such as kinetic, potential, thermal, electrical, and chemical energy. By possessing energy, an object or system can initiate or undergo changes, such as motion, temperature change, or chemical reactions, within itself or in its surroundings.

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• 4.

### What are the right kinds of kinetic energy?

• A.

Elastic,sound,chemical,thermal,gravacational

• B.

Thermal,mechanical,electric,light,sound

• C.

Elastic,chemical,gavacational

• D.

Thermal,light,sound,electric

B. Thermal,mechanical,electric,light,sound
Explanation
The correct answer includes thermal, mechanical, electric, light, and sound as the right kinds of kinetic energy. Thermal energy refers to the energy associated with the motion of particles in a substance. Mechanical energy is the energy possessed by an object due to its motion or position. Electric energy is the energy associated with the movement of electric charges. Light energy is the energy carried by electromagnetic waves. Sound energy is the energy produced by the vibrations of objects.

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• 5.

### What is mechanical energy and what type is it is it potential energy or kinetic energy?

• A.

It is potential energy and it is when energy is forced into a shape different from its natural shape.

• B.

It is kinetic energy and it is the energy that moving objects have.

• C.

It is potential energy is the energy an object has when it is in a elavated in a possition.

• D.

It is kinetic energy and it is the movement of molecules of matter.

B. It is kinetic energy and it is the energy that moving objects have.
Explanation
The correct answer is that mechanical energy is kinetic energy and it is the energy that moving objects have. This is because mechanical energy is the sum of potential energy and kinetic energy. Potential energy refers to the energy an object has due to its position or shape, while kinetic energy refers to the energy an object has due to its motion. In the given explanation, it states that mechanical energy is the energy that moving objects have, which aligns with the definition of kinetic energy.

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• 6.

### For the next 7 questions pick which anwser it the right type      When enegy is stored into a shape different from its natural shape.

• A.

Thermal energy

• B.

Gravational energy

• C.

Elastic energy

• D.

Thermal energy

• E.

Light energy

C. Elastic energy
Explanation
Elastic energy is the correct answer because it refers to the energy stored in an object when it is deformed or stretched from its natural shape. This energy is potential energy that can be released when the object returns to its original shape. Thermal energy, gravitational energy, and light energy are not related to the concept of storing energy in a different shape.

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• 7.

### Energy when it is on an elavated possion.

• A.

Chemical energy

• B.

Thermal energy

• C.

Gravitational energy

• D.

Light energy

• E.

Sound energy

C. Gravitational energy
Explanation
Gravitational energy refers to the potential energy possessed by an object due to its position in a gravitational field. When an object is at an elevated position, it has a higher gravitational potential energy compared to when it is at a lower position. This energy can be converted into other forms, such as kinetic energy, when the object falls or moves downwards. Therefore, gravitational energy is the most appropriate explanation for the energy associated with an elevated position.

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• 8.

### When plants absorb light and store it as...........

• A.

Light energy

• B.

Sound energy

• C.

Chemical energy

• D.

Thremal energy

• E.

Mechanical

C. Chemical energy
Explanation
Plants absorb light energy through a process called photosynthesis. During photosynthesis, plants convert light energy into chemical energy in the form of glucose. This chemical energy is stored in the plant's cells and is used for various metabolic processes, growth, and reproduction. Therefore, the correct answer is chemical energy.

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• 9.

### When the picture from a tv moves to your eyes in waves.

• A.

Thermal energy

• B.

Light energy

• C.

Sound energy

• D.

Chemical energy

• E.

Electric energy

B. Light energy
Explanation
When the picture from a TV moves to your eyes in waves, it implies the transmission of visual information through electromagnetic waves. These waves carry photons, which are particles of light energy. Therefore, the correct answer is light energy.

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• 10.

### What is a electic charge?

• A.

When a object gains electrons.

• B.

When a object loses electons.

• C.

When an object gains or loses electrons.

C. When an object gains or loses electrons.
Explanation
Electric charge refers to the property of matter that causes it to experience a force when placed in an electromagnetic field. This force can be either attractive or repulsive, depending on the type of charge. When an object gains or loses electrons, it becomes charged. Electrons are negatively charged particles, so when an object gains electrons, it acquires a negative charge, and when it loses electrons, it acquires a positive charge. Therefore, the correct answer is "When an object gains or loses electrons."

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• Mar 21, 2023
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• Feb 06, 2009
Quiz Created by
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