21 March 2011How are sounds made?      Answer the three questions on this side of the ticket.      You must attempt each o...
Learning objectives:• Describe how sounds are produced (Level 4)• Construct a loudspeaker (Level 5)• Explain how a loudspe...
Testing your loudspeaker1. Plug it into the AC       • Describe how sounds are   points                      made (4)2. Tu...
Homework: due Friday 25th March
1.      2.      3.Write down three things youhave learnt today that you didnot know before the lesson. Theycan be ANYTHING...
How is a sound made?What does a speaker do?What happens when you bring two magnets together?How is a sound made?What does ...
1.2.3.1.2.3.1.2.3.1.2.3.
Making a loudspeaker
Making a loudspeaker
Making a loudspeaker
Making a loudspeaker
Making a loudspeaker
Making a loudspeaker
Making a loudspeaker
Making a loudspeaker
Making a loudspeaker
Making a loudspeaker
Making a loudspeaker
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Making a loudspeaker

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making a loudspeaker

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Making a loudspeaker

  1. 1. 21 March 2011How are sounds made? Answer the three questions on this side of the ticket. You must attempt each one, it doesn’t matter if it’s right or wrong! (you need the ticket for later so hold on to it) How is a sound made? What does a speaker do? What happens when you bring two magnets together?
  2. 2. Learning objectives:• Describe how sounds are produced (Level 4)• Construct a loudspeaker (Level 5)• Explain how a loudspeaker works (Level 7)
  3. 3. Testing your loudspeaker1. Plug it into the AC • Describe how sounds are points made (4)2. Turn the voltage as low • What happens to the as possible sound as you bring your3. Switch on the plug at ear closer? What causes the mains this? (5)4. Switch on the switch on • Explain how a speaker the front works (7)5. Listen • Extension: how could you change the sound6. Move your ear right produced by your above the speaker speaker? (8)
  4. 4. Homework: due Friday 25th March
  5. 5. 1. 2. 3.Write down three things youhave learnt today that you didnot know before the lesson. Theycan be ANYTHING… you cannotleave for lunch until you do!
  6. 6. How is a sound made?What does a speaker do?What happens when you bring two magnets together?How is a sound made?What does a speaker do?What happens when you bring two magnets together?How is a sound made?What does a speaker do?What happens when you bring two magnets together?How is a sound made?What does a speaker do?What happens when you bring two magnets together?
  7. 7. 1.2.3.1.2.3.1.2.3.1.2.3.

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