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Electrostatic Circus

Electrostatic Circus. Magic Tape. Objective: Investigate how charges that have been separated affect each other. Straws Tape Film Container Clay Hypothesis: When separated the tape will _____________. Magic tape. 1 Put two pieces of tape on the table and pull them up.

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Electrostatic Circus

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  1. Electrostatic Circus

  2. Magic Tape Objective: Investigate how charges that have been separated affect each other. Straws Tape Film Container Clay Hypothesis: When separated the tape will _____________

  3. Magic tape 1 Put two pieces of tape on the table and pull them up. 2 Put one on the straw horizontal and bring the other close to it 3 Record what happens 4 Put one tape on top of the other and separate them • Repeat 2 & 3 Questions • Why did the first tapes repel? • Why did the second tapes attract?

  4. Charging by Friction Purpose: Investigate how a charge is produced. Hypothesis: when rubbed vigorously an object ___________ have a charge. Pieces of paper Straw Cup Wool

  5. Charge By Friction • Tear up paper into tiny bits • Put the straw close to the paper and observe • Rub the straw with the wool or plastic • Repeat 2 • Repeat with the cup instead Questions 1 Are the bits of paper charged? Why or why not? • What is charge? • 3 When inducing charge do you think electrons or protons are being moved? Explain.

  6. Sticky Balloons Purpose: Investigate charges on balloons. Balloons Hair Wall Hypothesis; How can you make like and unlike charges?

  7. Sticky Balloons Procedure 1 Rub both balloons against your hair. • Bring the balloons together observe and record. • Put both balloons on the wall observe and record. Questions 1 Why did the balloons repel each other? 2 Why did the balloons stick to the wall?

  8. Soda Can Attraction Purpose: Investigate charge by induction Hypothesis: The soda can will be ________ By the charge rods/comb.

  9. Soda Can Attraction • Charge the rod/comb by rubbing it with the wool. • Bring it close to the soda can and record. • Repeat with the plastic. Questions: What happened? Why?

  10. Stream Deflection Purpose: Investigate how charge affects a stream of water Hypothesis: When the charged object is brought close to the stream it will __________

  11. Stream Deflection 1 Start a gentle stream of water. • Charge the comb with a piece of fur. • Bring the comb close to the stream observe and record. Questions What happened and why?

  12. Charge It Purpose: Investigate how electrophorous can be used to explain induction of charge. Hypothesis: What will happen when the cup is charged

  13. 1 Charge the cup 2 Set the cup on top of the aluminum tin 3 Touch the tin with your finger observe and record what you feel and see Questions • Is the charge on the pie pan the same or different form the charge on the foam? How do you know? • You can recharge the pie pan many times without having to rub the foam again. Why?

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