Mrs. Samuelson Energy Quiz

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Quizzes Created: 1 | Total Attempts: 359
Questions: 13 | Attempts: 359

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• 1.

Energy flowing through wires is

• A.

Chemical energy

• B.

Electrical energy

• C.

Mechanical energy

• D.

Heat energy

B. Electrical energy
Explanation
Energy flowing through wires is electrical energy. When an electric current flows through a wire, it causes the movement of electrons, which carry the energy. This flow of electrons creates an electric field and generates electrical energy. This energy can be used to power various devices and perform work.

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• 2.

Where does the roller coaster have the most Kinetic energy?

• A.

A

• B.

B

• C.

C

• D.

D

C. C
Explanation
The roller coaster has the most kinetic energy at point C. Kinetic energy is the energy of motion, and it depends on the mass and velocity of an object. At point C, the roller coaster is at its highest point, which means it has the maximum potential energy. As it descends from point C, the potential energy is converted into kinetic energy, resulting in the highest velocity and therefore the most kinetic energy.

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• 3.

The law of conservation states that when one form of energy is being converted into another

• A.

Energy is destroyed in the process

• B.

energy is not created or destroyed in the process

• C.

Some energy is created in the process

• D.

Energy is created in the process

B. energy is not created or destroyed in the process
Explanation
The law of conservation of energy states that energy cannot be created or destroyed, it can only be converted from one form to another. This means that the total amount of energy in a closed system remains constant. Therefore, the correct answer is "energy is not created or destroyed in the process".

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• 4.

Energy transformations result in

• A.

A gain in heat energy from the environment

• B.

A loss of heat energy to the environment

• C.

No gain or loss of heat energy

• D.

A gain or loss in heat energy depending upon the situation

B. A loss of heat energy to the environment
Explanation
Energy transformations result in a loss of heat energy to the environment. This is because energy cannot be created or destroyed, but it can be transferred from one form to another. During an energy transformation, some of the energy is inevitably lost as heat to the surrounding environment. This is known as the second law of thermodynamics, which states that in any energy transformation, there is always a decrease in usable energy and an increase in entropy. Therefore, energy transformations result in a loss of heat energy to the environment.

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• 5.

Which car has the most kinetic energy?

• A.

Speed = 30 miles per hours

• B.

Speed = 15 miles per hour

• C.

Speed = 0 miles per hour

• D.

Option 4

A. Speed = 30 miles per hours
Explanation
The car with a speed of 30 miles per hour has the most kinetic energy. Kinetic energy is directly proportional to the square of an object's velocity. Therefore, the car with a higher speed will have a greater kinetic energy compared to the cars with lower speeds, such as 15 miles per hour and 0 miles per hour.

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• 6.

Select all the answers that represent an example of potential energy

• A.

Gasoline

• B.

A boy kicking a ball

• C.

A car speeding down the road

• D.

A rock at the end of a cliff

• E.

An acorn hanging from the tree

• F.

A stretched rubber band

• G.

• H.

Blowing wind

A. Gasoline
D. A rock at the end of a cliff
E. An acorn hanging from the tree
F. A stretched rubber band
Explanation
Gasoline can be considered an example of potential energy because it has the potential to release energy when it is burned. A rock at the end of a cliff represents potential energy because it has the potential to fall and release energy as it moves downward. An acorn hanging from a tree also represents potential energy as it has the potential to fall and release energy when it hits the ground. A stretched rubber band has potential energy because it has the potential to snap back and release energy.

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• 7.

Select all the examples of kinetic energy

• A.

Gasoline

• B.

A boy kicking a ball

• C.

A stretched rubber band

• D.

Water flowing in a stream

• E.

A car speeding down the road

• F.

A rock sitting on a cliff

• G.

A piece of celery

• H.

Blowing wind

• I.

• J.

An acorn hanging from the tree

B. A boy kicking a ball
D. Water flowing in a stream
E. A car speeding down the road
H. Blowing wind
I. A person climbing a ladder
Explanation
Kinetic energy is the energy possessed by an object due to its motion. In the given options, a boy kicking a ball, water flowing in a stream, a car speeding down the road, blowing wind, and a person climbing a ladder are all examples of objects or phenomena that involve motion and therefore possess kinetic energy.

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• 8.

The two types of energy are?

• A.

Infinite and finite

• B.

Loud and soft

• C.

Potential and kinetic

• D.

Possible and impossible

C. Potential and kinetic
Explanation
Potential energy is stored energy while kinetic energy is energy of motion.

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• 9.

Moving water can be used to form electrical energy because...

• A.

Potential energy can be converted into kinetic but not vice versa

• B.

Energy cannot be converted into other forms

• C.

Most energy forms can be transformed

• D.

None of the above

C. Most energy forms can be transformed
Explanation
Most energy forms can be transformed, including potential energy and kinetic energy. When water moves, it possesses kinetic energy, which can be harnessed and converted into electrical energy. This is achieved through the use of turbines or water wheels, which capture the kinetic energy of the moving water and convert it into mechanical energy. This mechanical energy is then further transformed into electrical energy using generators. Therefore, the statement "most energy forms can be transformed" explains why moving water can be used to form electrical energy.

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• 10.

Energy that is dependent upon height is called

• A.

Gravitational kinetic energy

• B.

Elastic kinetic energy

• C.

Elastic potential energy

• D.

Gravitational potential energy

D. Gravitational potential energy
Explanation
Gravitational potential energy refers to the energy possessed by an object due to its position in a gravitational field. It is dependent on the height of the object above a reference point, such as the ground. As the object is raised higher, its gravitational potential energy increases, and as it falls, the energy is converted into other forms, such as kinetic energy. Therefore, gravitational potential energy is the correct term to describe energy that is dependent upon height.

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• 11.

Where does the pendulum have the greatest kinetic energy?

• A.

A

• B.

B

• C.

C

• D.

D

B. B
Explanation
The pendulum has the greatest kinetic energy at point B. This is because kinetic energy is directly proportional to the square of the velocity. At point B, the pendulum is at its lowest position, which means it has the highest velocity. Therefore, it has the greatest kinetic energy at this point.

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• 12.

Where does the bag have the most potential energy?

• A.

A

• B.

B

• C.

Both A and B

• D.

Neither A nor B

B. B
Explanation
The bag has the most potential energy at position B. This is because potential energy is directly proportional to height, and position B is higher than position A. Therefore, the bag will have more potential energy at position B compared to position A.

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• Current Version
• Mar 21, 2023
Quiz Edited by
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• Jan 11, 2015
Quiz Created by
Msamuelson

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