Which form of Energy? A megaphone The Sun Galloping donkey A fire

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Presentation transcript:

Which form of Energy? A megaphone The Sun Galloping donkey A fire A hamburger A climber climbing A nuclear power station A stretched bow Electric cable

Energy Transformations 1) A light bulb Electrical energy light energy Heat energy 2) A wind up radio Kinetic energy Electrical energy Sound energy

Energy Transformations A catapult transforms _______ energy to _________ energy and __________ energy. A microphone transforms _______ energy to __________ energy. A burning candle transforms __________ energy to ________ energy and _______ energy. A skydiver falling transforms ________energy to ___________ energy

Bouncing Ball Experiment Aim: To find out how the height a ball is dropped from affects the height it bounces to. 1. The independent variable is................................ 2. The dependent variable is................................... 3. The control variables are……………………….. 4. Results table You will drop the ball from 4 different heights: 100cm, 80cm, 60cm, 40cm. You will take 3 repeat readings for each height then find an average. Draw a suitable table to record your results.

Conclusion How does the height the ball bounces to depend on the height it was dropped from? What are the energy transformations as the ball bounces? Draw the transformations using arrows. 3. Why doesn't the ball bounce back to the same height (think about the energy transformations)?