Difference between revisions of "Energy,Work And Force"

From Karnataka Open Educational Resources
Jump to navigation Jump to search
m (Text replacement - "</mm>" to "")
 
(27 intermediate revisions by 3 users not shown)
Line 19: Line 19:
 
While creating a resource page, please click here for a resource creation [http://karnatakaeducation.org.in/KOER/en/index.php/Resource_Creation_Checklist '''checklist''']
 
While creating a resource page, please click here for a resource creation [http://karnatakaeducation.org.in/KOER/en/index.php/Resource_Creation_Checklist '''checklist''']
 
= Concept Map =
 
= Concept Map =
 +
[[File:Work,Energy and Force  .mm|Flash]]
 +
 
__FORCETOC__
 
__FORCETOC__
 +
 
= Textbook =
 
= Textbook =
 
To add textbook links, please follow these instructions to:  
 
To add textbook links, please follow these instructions to:  
Line 26: Line 29:
 
= Additional information =
 
= Additional information =
 
==Useful websites==
 
==Useful websites==
 +
[http://en.wikipedia.org/wiki/Work_%28physics%29 Wikipedia for work(physics)]<br>
 +
[http://www.slideshare.net/joverba/work-force-and-energy Work,force and Energy]<br>
 +
[http://www.slideshare.net/mike_mcmahon/work-force-energy-ppt-final-wiki work-force-energy-ppt-final-wiki]
 +
 
==Reference Books==
 
==Reference Books==
  
Line 31: Line 38:
 
= Teaching Outlines =
 
= Teaching Outlines =
  
−
==Concept #==
+
==Concept#Introduction to Energy and its forms==
 
===Learning objectives===
 
===Learning objectives===
 +
#Definition of Force and work
 +
#Understand the terms of Mechanical Energy,Potential energy and Kinetic Energy
 +
#Obtain a Energy
 +
#Law of Conservation of Energy
 +
 
===Notes for teachers===
 
===Notes for teachers===
−
''These are short notes that the teacher wants to share about the concept, any locally relevant information, specific instructions on what kind of methodology used and common misconceptions/mistakes.''
+
''These are short notes that the teacher wants to share about the concept, any locally relevant information, specific instructions on what kind of methodology used and common misconceptions/mistakes.''<br>
−
===Activity No # Work and Energy-Power===
+
Two aspects:
 +
#To studying motion<br>
 +
#Movement of objects<br>
 +
The first is to define the framework, terms that we will use to describe the motion.  The second is to understand what causes the motion and movement.
 +
 
 +
Describing Motion<br>
 +
 
 +
Some ways of describing motion<br>
 +
#Uniform motion in a straight line <br>
 +
#Uniform circular motion<br>
 +
 
 +
Motion in a straight line and uniform circular motion are two extreme positions of the acceleration changing only the speed or only the direction<br>
 +
Force may be defined as such an external cause that changes or acts to change the state of rest or of uniform motion of a body<br>
 +
 
 +
Three laws of motion:<br>
 +
Newton's first law of motion<br>
 +
Newton's second law of motion<br>
 +
Newton's third law of motion<br>
 +
 
 +
Law of Conservation of energy<br>
 +
 
 +
The total energy of the system is conserved.  Potential energy can be converted into kinetic energy and vice versa.  But the total energy remains unchanged<br>
 +
In more general terms, the law of conservation of energy states that energy can neither be created nor destroyed; but can be transformed from one form to another<br>.
 +
 
 +
===Activity No # What is Energy ===
 
{| style="height:10px; float:right; align:center;"
 
{| style="height:10px; float:right; align:center;"
 
|<div style="width:150px;border:none; border-radius:10px;box-shadow: 5px 5px 5px #888888; background:#f5f5f5; vertical-align:top; text-align:center; padding:5px;">
 
|<div style="width:150px;border:none; border-radius:10px;box-shadow: 5px 5px 5px #888888; background:#f5f5f5; vertical-align:top; text-align:center; padding:5px;">
Line 46: Line 82:
 
{{#widget:YouTube|id=Z7zQK6IV2vk}}<br>
 
{{#widget:YouTube|id=Z7zQK6IV2vk}}<br>
 
* '''Website interactives/ links/ simulations'''
 
* '''Website interactives/ links/ simulations'''
−
'''Interactive Simulation of Energy'''
+
*'''Interactive Simulation of Energy'''
 
[https://phet.colorado.edu/en/simulation/energy-skate-park-basics Energy-skate-park-basics ]<br>
 
[https://phet.colorado.edu/en/simulation/energy-skate-park-basics Energy-skate-park-basics ]<br>
 
* '''Process (How to do the activity)'''
 
* '''Process (How to do the activity)'''
 
* '''Developmental Questions (What discussion questions)'''
 
* '''Developmental Questions (What discussion questions)'''
−
* '''Evaluation (Questions for assessment of the child)'''
+
* '''Evaluation (Questions for assessment of the child)'''<br>
 +
          State Newton's law of motion<br>
 +
          What is an External unbalanced force?<br>
 +
          Which of the following has more inertia?<br>
 +
              a. A rubber ball and a stone of the same size<br>
 +
              b. A bicycle and a train<br>
 +
              c. A 5-rupee coin and a 1-rupee coin<br>
 +
 
 +
          State true or false.<br>
 +
              a. Inertia is a force<br>
 +
              b. All objects have inertia<br>
 +
              c. Fast moving objects have more inertia than slow moving objects<br>
 +
              d. An object will have no inertia when there is no gravity.<br>
 +
              e. If a person is moving to the right, then the forces acting upon it are NOT balanced.<br>
 +
              f. It would take an unbalanced force to keep an object in motion<br>
 +
              g. A pendulum bob is set into its usual back and forth periodic motion.  After some time, the pendulum bob comes to a rest position.  This is best explained by the idea of inertia – all objects eventually resist motion.<br>
 +
              h. If an object is moving with a constant speed in a circle, then the forces acting upon the object are balanced.<br>
 +
              i. If an object is accelerating at a constant rate of acceleration, then the forces acting upon the object are balanced.<br>
 +
              j. A free-falling object experiences a balance of forces.<br>
 
* '''Question Corner'''
 
* '''Question Corner'''
  
−
===Activity No #Work and Energy-Potential Energy===
+
===Activity No #Potential Energy===
 
{| style="height:10px; float:right; align:center;"
 
{| style="height:10px; float:right; align:center;"
 
|<div style="width:150px;border:none; border-radius:10px;box-shadow: 5px 5px 5px #888888; background:#f5f5f5; vertical-align:top; text-align:center; padding:5px;">
 
|<div style="width:150px;border:none; border-radius:10px;box-shadow: 5px 5px 5px #888888; background:#f5f5f5; vertical-align:top; text-align:center; padding:5px;">
Line 63: Line 117:
 
* '''Multimedia resources'''<br>
 
* '''Multimedia resources'''<br>
 
{{#widget:YouTube|id=S_aOZmLlJM0}}<br>
 
{{#widget:YouTube|id=S_aOZmLlJM0}}<br>
−
* '''Website interactives/ links/ simulations'''
+
* '''Website interactives/ links/ simulations'''<br>
 +
*'''Interactive simulation of Force and Motion'''<br>
 +
[https://phet.colorado.edu/en/simulation/forces-and-motion-basics Force and Motion]<br>
 
* '''Process (How to do the activity)'''
 
* '''Process (How to do the activity)'''
 
* '''Developmental Questions (What discussion questions)'''
 
* '''Developmental Questions (What discussion questions)'''
−
* '''Evaluation (Questions for assessment of the child)'''
+
* '''Evaluation (Questions for assessment of the child)'''<br>
−
* '''Question Corner'''
+
        What is Potential Energy ?<br>
 +
 
 +
        What are the types of Potential energy ?<br>
 +
 
 +
        What is the two forms of Potential energy ?>br>
 +
 
 +
        Derive the equation of Gravitational potential energy ?<br>
 +
 
 +
        Give the applications of potential energy ?<br>
 +
 
 +
        A cart is loaded with a brick and pulled at constant speed along an inclined plane to the height<br> of a seat-top. If the mass of the loaded cart is 3.0 kg and the height of the seat top is 0.45<br> meters, then what is the potential energy of the loaded cart at the height of the seat-top?<br>
 +
 
 +
        A body of mass 2kg is raised to a height of 25m. Calculate the potential energy possessed by the  body?>br>
 +
 
 +
        A bag of rice weighs 75kg. To what height is it raised if the work done in lifting it is 4900 J?
 +
 +
 
 +
'''Question Corner'''
  
−
==Concept #==
+
==Concept # Difference Between Potential and Kinetic Energy==
 
===Learning objectives===
 
===Learning objectives===
 +
#Working of Potential and Kinetic Energy
 +
#Examples of potential and Kinetic Energy
 +
#Formula and Derivation of Potential and Kinetic Energy
 +
#Conservation of Mechanical Energy
 +
 
===Notes for teachers===
 
===Notes for teachers===
 
''These are short notes that the teacher wants to share about the concept, any locally relevant information, specific instructions on what kind of methodology used and common misconceptions/mistakes.''
 
''These are short notes that the teacher wants to share about the concept, any locally relevant information, specific instructions on what kind of methodology used and common misconceptions/mistakes.''
−
===Activity No # ===
+
===Activity No #Kinetic Energy ===
 
{| style="height:10px; float:right; align:center;"
 
{| style="height:10px; float:right; align:center;"
 
|<div style="width:150px;border:none; border-radius:10px;box-shadow: 5px 5px 5px #888888; background:#f5f5f5; vertical-align:top; text-align:center; padding:5px;">
 
|<div style="width:150px;border:none; border-radius:10px;box-shadow: 5px 5px 5px #888888; background:#f5f5f5; vertical-align:top; text-align:center; padding:5px;">
Line 81: Line 159:
 
* '''Materials/ Resources needed'''
 
* '''Materials/ Resources needed'''
 
* '''Prerequisites/Instructions, if any'''
 
* '''Prerequisites/Instructions, if any'''
−
* '''Multimedia resources'''
+
* '''Multimedia resources'''<br>
−
* '''Website interactives/ links/ simulations'''
+
This Video use to explain about the potential energy ,kinetic Energy and transforming potential energy into kinetic energy<br>
 +
{{#widget:YouTube|id=T5WJoup-RD8}}<br>
 +
* '''Website interactives/ links/ simulations'''<br>
 +
*'''Interactive Simulations of Kinetic Energy'''<br>
 +
[https://phet.colorado.edu/en/simulation/pendulum-lab Pendulum]<br>
 
* '''Process (How to do the activity)'''
 
* '''Process (How to do the activity)'''
 
* '''Developmental Questions (What discussion questions)'''
 
* '''Developmental Questions (What discussion questions)'''
−
* '''Evaluation (Questions for assessment of the child)'''
+
* '''Evaluation (Questions for assessment of the child)'''<br>
−
* '''Question Corner'''
+
        What is Kinetic Energy ?<br>
 +
 
 +
        What are the types of Kinetic Energy ?<br>
 +
 
 +
        A truck and a car are moving with the same kinetic energy on a road.
 +
        Their engines are simultaneously switched off. Which one will stop at
 +
        a lesser distance?<br>
  
 +
        A body of mass 75 kg has a momentum of 1500kg ms-1. Calculate its kinetic energy?
  
−
===Activity No # ===
 
−
{| style="height:10px; float:right; align:center;"
 
−
|<div style="width:150px;border:none; border-radius:10px;box-shadow: 5px 5px 5px #888888; background:#f5f5f5; vertical-align:top; text-align:center; padding:5px;">
 
−
''[http://www.karnatakaeducation.org.in/?q=node/305 Click to Comment]''</div>
 
−
|}
 
−
* '''Estimated Time'''
 
−
* '''Materials/ Resources needed'''
 
−
* '''Prerequisites/Instructions, if any'''
 
−
* '''Multimedia resources'''
 
−
* '''Website interactives/ links/ simulations'''
 
−
* '''Process (How to do the activity)'''
 
−
* '''Developmental Questions (What discussion questions)'''
 
−
* '''Evaluation (Questions for assessment of the child)'''
 
 
* '''Question Corner'''
 
* '''Question Corner'''
  

Latest revision as of 15:27, 17 May 2017

The Story of Science

Philosophy of Science

Teaching of Science

Curriculum and Syllabus

Topics in School Science

Textbooks

Question Bank

While creating a resource page, please click here for a resource creation checklist

Concept Map

[maximize]


Textbook

To add textbook links, please follow these instructions to: (Click to create the subpage)

Additional information

Useful websites

Wikipedia for work(physics)
Work,force and Energy
work-force-energy-ppt-final-wiki

Reference Books

Teaching Outlines

Concept#Introduction to Energy and its forms

Learning objectives

  1. Definition of Force and work
  2. Understand the terms of Mechanical Energy,Potential energy and Kinetic Energy
  3. Obtain a Energy
  4. Law of Conservation of Energy

Notes for teachers

These are short notes that the teacher wants to share about the concept, any locally relevant information, specific instructions on what kind of methodology used and common misconceptions/mistakes.
Two aspects:

  1. To studying motion
  2. Movement of objects

The first is to define the framework, terms that we will use to describe the motion. The second is to understand what causes the motion and movement.

Describing Motion

Some ways of describing motion

  1. Uniform motion in a straight line
  2. Uniform circular motion

Motion in a straight line and uniform circular motion are two extreme positions of the acceleration changing only the speed or only the direction
Force may be defined as such an external cause that changes or acts to change the state of rest or of uniform motion of a body

Three laws of motion:
Newton's first law of motion
Newton's second law of motion
Newton's third law of motion

Law of Conservation of energy

The total energy of the system is conserved. Potential energy can be converted into kinetic energy and vice versa. But the total energy remains unchanged
In more general terms, the law of conservation of energy states that energy can neither be created nor destroyed; but can be transformed from one form to another
.

Activity No # What is Energy

  • Estimated Time
  • Materials/ Resources needed
  • Prerequisites/Instructions, if any
  • Multimedia resources


  • Website interactives/ links/ simulations
  • Interactive Simulation of Energy

Energy-skate-park-basics

  • Process (How to do the activity)
  • Developmental Questions (What discussion questions)
  • Evaluation (Questions for assessment of the child)
          State Newton's law of motion

          What is an External unbalanced force?

          Which of the following has more inertia?

             a. A rubber ball and a stone of the same size

             b. A bicycle and a train

             c. A 5-rupee coin and a 1-rupee coin


          State true or false.

             a. Inertia is a force

             b. All objects have inertia

             c. Fast moving objects have more inertia than slow moving objects

             d. An object will have no inertia when there is no gravity.

             e. If a person is moving to the right, then the forces acting upon it are NOT balanced.

             f. It would take an unbalanced force to keep an object in motion

             g. A pendulum bob is set into its usual back and forth periodic motion.  After some time, the pendulum bob comes to a rest position.  This is best explained by the idea of inertia – all objects eventually resist motion.

             h. If an object is moving with a constant speed in a circle, then the forces acting upon the object are balanced.

             i. If an object is accelerating at a constant rate of acceleration, then the forces acting upon the object are balanced.

             j. A free-falling object experiences a balance of forces.
  • Question Corner

Activity No #Potential Energy

  • Estimated Time
  • Materials/ Resources needed
  • Prerequisites/Instructions, if any
  • Multimedia resources


  • Website interactives/ links/ simulations
  • Interactive simulation of Force and Motion

Force and Motion

  • Process (How to do the activity)
  • Developmental Questions (What discussion questions)
  • Evaluation (Questions for assessment of the child)
        What is Potential Energy ?


        What are the types of Potential energy ?


        What is the two forms of Potential energy ?>br>

        Derive the equation of Gravitational potential energy ?


        Give the applications of potential energy ?


        A cart is loaded with a brick and pulled at constant speed along an inclined plane to the height
 of a seat-top. If the mass of the loaded cart is 3.0 kg and the height of the seat top is 0.45
 meters, then what is the potential energy of the loaded cart at the height of the seat-top?


        A body of mass 2kg is raised to a height of 25m. Calculate the potential energy possessed by the  body?>br>

        A bag of rice weighs 75kg. To what height is it raised if the work done in lifting it is 4900 J?

Question Corner

Concept # Difference Between Potential and Kinetic Energy

Learning objectives

  1. Working of Potential and Kinetic Energy
  2. Examples of potential and Kinetic Energy
  3. Formula and Derivation of Potential and Kinetic Energy
  4. Conservation of Mechanical Energy

Notes for teachers

These are short notes that the teacher wants to share about the concept, any locally relevant information, specific instructions on what kind of methodology used and common misconceptions/mistakes.

Activity No #Kinetic Energy

  • Estimated Time
  • Materials/ Resources needed
  • Prerequisites/Instructions, if any
  • Multimedia resources

This Video use to explain about the potential energy ,kinetic Energy and transforming potential energy into kinetic energy

  • Website interactives/ links/ simulations
  • Interactive Simulations of Kinetic Energy

Pendulum

  • Process (How to do the activity)
  • Developmental Questions (What discussion questions)
  • Evaluation (Questions for assessment of the child)
       What is Kinetic Energy ?

 
       What are the types of Kinetic Energy ?


       A truck and a car are moving with the same kinetic energy on a road. 
       Their engines are simultaneously switched off. Which one will stop at 
       a lesser distance?


       A body of mass 75 kg has a momentum of 1500kg ms-1. Calculate its kinetic energy?
  • Question Corner

Project Ideas

Fun corner

Usage

Create a new page and type {{subst:Science-Content}} to use this template

Retrieved from "https://karnatakaeducation.org.in/KOER/en/index.php?title=Energy,Work_And_Force&oldid=27280"