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Which of the following is the best example of potential energy?

Question 1 options:


a ball sitting at the top of a hill


a ball sitting at the bottom of a hill


a ball rolling down a hill

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Question 2 (1 point) Question 2 Unsaved


Which of the following is an example of kinetic energy?

Question 2 options:


a girl running in a race


a car sitting motionless


a tank containing gasoline


a sled sitting at the top of a hill

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Question 3 (1 point) Question 3 Unsaved


The water held by a dam is an example of which type of energy?


Question 3 options:


kinetic energy



chemical energy



electrical energy



potential energy


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Question 4 (1 point) Question 4 Unsaved


What does the kinetic theory explain?

Question 4 options:


Heat is due to Pascal´s principle.



Heat is due to temperature.


Heat is due to potential energy.


Heat is due to the motion of molecules.

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Question 5 (1 point) Question 5 Unsaved


If the atoms and molecules of a substance are moving very fast, the substance is __________.

Question 5 options:


porous


cold


hot


frozen

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Question 6 (1 point) Question 6 Unsaved


Heat energy is measured indirectly by __________.

Question 6 options:


temperature


kinetics


recording the motion of molecules

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Question 7 (1 point) Question 7 Unsaved


What are the ways that heat moves?

Question 7 options:


Heat only moves through air currents.


Heat moves through conduction, convection, and radiation.


Heat only moves through conduction and radiation.


Heat moves from a cold object to a warm object.

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Question 8 (1 point) Question 8 Unsaved


Convection requires __________ to transfer heat.

Question 8 options:


the vacuum of space


fluids (liquids or gases)


insulation


solids

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Question 9 (1 point) Question 9 Unsaved


What does an insulator do?

Question 9 options:


An insulator slows heat transfer.


An insulator cools a substance.


An insulator warms a substance.


An insulator emits electromagnetic radiation.

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Verified Answer :

Question 1

Which of the following is the best example of potential energy?

ANSWER

a ball sitting at the top of a hill


EXPLANATION

As we know that Potential Energy is given by

U = mgh

so as height will be more more is the potential energy

Question 2  

Which of the following is an example of kinetic energy?

ANSWER

a girl running in a race


EXPLANATION

As we know that Kinetic Energy is given by

\(KE = \frac{1}{2}mv^2\)

So more speed means more kinetic energy


Question 3

The water held by a dam is an example of which type of energy?

 ANSWER

potential energy


EXPLANATION

As we know that Potential Energy is given by

U = mgh

Since water is at rest so its energy is Potential Energy

Question 4

What does the kinetic theory explain?

 ANSWER

Heat is due to the motion of molecules.


EXPLANATION

As the molecules of medium is in motion so it shows energy transfer which is also known as HEAT


Question 5

If the atoms and molecules of a substance are moving very fast, the substance is __________.

 ANSWER

Hot


EXPLANATION

Since heat is the measure of motion of molecules so here since molecules are moving fast then temperature must be more

Question 6 (1 point)

Heat energy is measured indirectly by __________.

 ANSWER

Recording of motion of molecules

EXPLANATION

Since heat will show the speed of molecules so motion of molecules is represented by heat.


Question 7

What are the ways that heat moves?

 ANSWER

Heat moves through conduction convection and radiation


EXPLANATION

There  are three ways of thermal energy transfer

conduction, convection, and radiation.

Question 8

Convection requires __________ to transfer heat.

 ANSWER

As the molecules of medium is in motion so it shows energy transfer which is also known as HEAT


EXPLANATION

In convection mode of heat transfer the molecules will move and carry heat along with them.

Question 9

What does an insulator do?

 ANSWER

An insulator slows heat transfer.


EXPLANATION

Thermal insulator stops the flow of heat through them and complete slow down of heat

The ball sitting at the top of the hill is the best example of potential energy and a running girl is an example of kinetic energy.

What is potential energy?

It is the energy of a system due to the relative position of the different components.

\(U = mgh\)

Where,

\(m\) - mass

\(g\) -  gravitational acceleration

\(h\) - height

So, the ball sitting at the top of the hill is the best example of potential energy.

Kinetic Energy:

It is the energy of an object due to its motion. Thus, a girl running in a race is an example of kinetic energy.

Therefore, the ball sitting at the top of the hill is the best example of potential energy and a running girl is an example of kinetic energy.

Learn more about potential energy?

https://brainly.com/question/2709059

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