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					              KINETIC and POTENTIAL ENERGY
       Topic: Physics
       Link to the curriculum: Form One
       Time: Single Lesson
       Lesson outcomes: The students should be able to:

                 State the difference between the two forms of energy, ie
                  kinetic or potential.
                 Describe practical real examples of kinetic and potential
                  energy


Section 1      What to do before audio 1

1. 10 minutes only:
Name and give examples of each of the following types of energy. Heat
(thermal), light (radiant), mechanical, electrical, chemical, and nuclear energy.

2.            Write the following on the blackboard:


a) Listen for the following words on the audio and try and write down their
meaning:

                   potential                   kinetic        joules

b) Which of   the following are given as examples of different types of energy?
       i.      a baby crying        or           a baby sleeping
      ii.      a waterfall          or           a river flowing
      iii.     horses racing or            horses eating in a field
      iv.      a boy kicking a football    or    someone throwing a ball in the
air
      iv.      a car in a crash           or       petrol in a car

c) Read these sentences. Using information from the audio d write PE or KE to
show what type of energy is being used in each.

       i.      A baby sleeping
       ii.     A ball about to be thrown
       iii.    A rubber band that is stretched
       iv.     The water at the top of a waterfall
       v.      A horse running
       vi.     The ball descending
        vii.    A car that has started the race
        viii.   The water halfway down the waterfall


4. Ask the students to listen carefully to the audio. Then switch on the audio
and make sure that the volume is loud enough for everyone in the class to hear.
Play audio part one – pause the audio where you feel appropriate. Play the
audio once so that they answer questions a) and b). Then play a second time so
that they can answer question c). Avoid any further replaying.



Section 2             What to do after audio Part 1

1.      Tell the students to write their answers to the questions in their exercise
        books.

2.      When they have finished encourage them to discuss the meaning of the
        words listed on the blackboard. They can then compare their answers to
        the questions on the blackboard in pairs or in groups.

3.      Now discuss the answers to the questions with the class and check their
        understanding and address their misunderstandings and misconceptions.

Possible Answers:
  i a baby sleeping      ii a waterfall           iii horses racing
  Iv someone throwing a ball in the air           v petrol in a car

i.      A baby sleeping             PE
ii.     A ball about to be thrown PE
iii.    A rubber band that is stretched PE
iv.     The water at the top of a waterfall    PE
v.      A horse running KE
vi.     The ball descending KE
vii.    A car that has started the race KE
viii.   The water halfway down the waterfall KE


                Section 3:          Audio Part (2)

1.      Before you play the audio write the following questions on the blackboard
        and tell the students to copy these into their exercise books.
Copy these questions and answers and then complete them as you listen to the
audio part 2.
       What is Potential Energy?         Potential energy is …………………………
       What is Kinetic Energy?           Kinetic Energy is …………………………..
       What happens to the potential energy in an object when it starts to
…………………?
       When it starts to move ………………………………………………………….
       What type of energy is in a …………………………………………
       ………………………………………………………………………….?
       What type of energy is in running water? ……………………………………
       If you stretch ……………………………what energy do you give it?
       …………………………………………………………………………………….
       What type of energy is there when you release the rubber band?
       ……………………………………………………………………………

2.    Play part two of the audio and let the students complete the above
      questions and answers. This is a form of dictation. Therefore you may
      need to play the audio twice. Allow short answers.




      After the audio
3.    Discuss the answers to any questions in the audio and let students
      compare the questions and answers they have written.

				
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