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Mass and Density-float or sink?

Mass and Density-float or sink?. Objective s. Design a “diver” that stays fully-submerged in water(but not sink to the bottom of the tank). . Apparatus. Fish tank 2x pendulum bobs 5x marbles 200cm 3 measuring cylinder blue-tack Electronic balance 2x plastic container with cap.

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Mass and Density-float or sink?

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  1. Mass and Density-float or sink?

  2. Objectives Design a “diver” that stays fully-submerged in water(but not sink to the bottom of the tank).

  3. Apparatus • Fish tank • 2x pendulum bobs • 5x marbles • 200cm3 measuring cylinder • blue-tack • Electronic balance • 2x plastic container with cap

  4. Procedure • Step 1 Measure the volume and mass of the water in a plastic container.

  5. Procedure • Step 2 Measure the mass of the marbles and pendulum bobs http://www.clipartoday.com/clipart/cartoons/cartoon/cartoon_189968.html

  6. Procedure • Step 3 ensure the density of the combination of the marbles, blue-tack and bobs is the same as the water

  7. Procedure • Step 4 Test to verify the results

  8. Calculations • Density of water in container: mass/volume= 60.1/60=1.002 • Calculations

  9. Conclusion • With a combination of some blue-tack, 2 marbles and a bob, we managed to keep the “diver” suspended half way in water.

  10. Conclusion • This involved calculating the density of the marbles, bob and blue-tack, as well as the water in the small container

  11. Thank You!

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