Physics Experiments / Buoyancy & Density Lab

Buoyancy & Density Lab Experiment

Explore Archimedes' principle with objects floating and sinking in different liquids.

Physics Class 9-10 Forces Beginner
Prelab Brief
To verify Archimedes' principle and study the relationship between buoyant force, object density, and liquid density.
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Theory

Explore Archimedes' principle with objects floating and sinking in different liquids. To verify Archimedes' principle and study the relationship between buoyant force, object density, and liquid density.

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Formula

Principle: To verify Archimedes' principle and study the relationship between buoyant force, object density, and liquid density.

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Aim

To verify Archimedes' principle and study the relationship between buoyant force, object density, and liquid density.

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Apparatus

  • Spring balance
  • Overflow can
  • Measuring cylinder
  • Objects of different densities
  • Water, salt water, oil
  • Thread
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Procedure

  1. Weigh the object in air using a spring balance (Wโ‚).
  2. Immerse the object fully in water and note the apparent weight (Wโ‚‚).
  3. Collect the overflowing water in a measuring cylinder.
  4. Buoyant force = Wโ‚ โˆ’ Wโ‚‚ = weight of water displaced.
  5. Repeat with different liquids (salt water, oil).
  6. Observe: objects float when ฯ_object < ฯ_liquid, sink when ฯ_object > ฯ_liquid.
Pre-Lab Questions
What is the main aim of the Buoyancy & Density Lab Experiment?
Which principle is demonstrated in the Buoyancy & Density Lab Experiment?
What apparatus is required for this experiment?
Why is Spring balance used in this experiment?
What formula or relationship is verified in this experiment?
What precaution should be followed while performing this experiment?
What conclusion can be drawn from the Buoyancy & Density Lab Experiment?