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| 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: |
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| = 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== |
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| ===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> |
| + | 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 === | | ===Activity No # What is Energy === |
| {| style="height:10px; float:right; align:center;" | | {| style="height:10px; float:right; align:center;" |
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| {{#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''' |
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| * '''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 # Difference Between Potential and Kinetic Energy== | | ==Concept # Difference Between Potential and Kinetic Energy== |
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| * '''Prerequisites/Instructions, if any''' | | * '''Prerequisites/Instructions, if any''' |
| * '''Multimedia resources'''<br> | | * '''Multimedia resources'''<br> |
− | This Video use to explain about the potential energy ,kinetic Energy and transforming potential energy into kinnetic energy | + | 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> | | {{#widget:YouTube|id=T5WJoup-RD8}}<br> |
− | * '''Website interactives/ links/ simulations''' | + | * '''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 # Law Of Conservation of Energy ===
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− | ''[http://www.karnatakaeducation.org.in/?q=node/305 Click to Comment]''</div>
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− | |}
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− | * '''Estimated Time'''
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− | * '''Materials/ Resources needed'''
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− | * '''Prerequisites/Instructions, if any'''
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− | * '''Multimedia resources'''
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− | * '''Website interactives/ links/ simulations'''
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− | * '''Process (How to do the activity)'''
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− | * '''Developmental Questions (What discussion questions)'''
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− | * '''Evaluation (Questions for assessment of the child)'''
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| * '''Question Corner''' | | * '''Question Corner''' |
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