Pierre and Mike use the same magnet and the same number of paper clips to investigate the strength of magnet .Put the magnet on top of the hand. Put the bottom of hand onto 24 paper clips .Lift the hand. count how many paper clips have been attracted. why do they have different results?
Answers
Answer:
Explanation:
Work with your partner.
Clamp your magnet to the clothespin. Tape the clothespin to the bottom of the cup as shown in the sketch.
Pull out one end of the paperclip to form a hook. Touch the hook to the magnet. It should stick to one pole of your magnet.
Take turns with your partner and carefully add paper clips to the hook, one by one. Count the total number of paper clips that you can hang onto the hook before the weight becomes too much for the magnet to hold and the paper clips fall.
Write this number of paper clips on your data sheet on the line for zero pieces of tape.
Next, stick three pieces of masking tape (labeled #1, #2, and #3) on the bottom of your magnet. (See the picture on the student activity sheet.) Now repeat your experiment and see how many paper clips you can hang on the hook. Make sure the hook touches the tape, not the magnet itself. Write your findings on your data sheet.
Add three more pieces of tape and repeat your experiment. Mark your findings on your data sheet.