Friday, 19 July 2013 12:48

## F2-21 REACTION TO BUOYANT FORCE

• ID Code: F2-21
• Purpose: Demonstrates the reaction force using a liquid.
• Description: A beaker of water is balanced by two brass weights. Stick your finger into the water about up to the first knuckle, the water side will go down. The water exerts a buoyant force on your finger, so your finger exerts a reaction to the buoyant force on the water, thereby causing the water side to go down.
• Availability: Available
• Loc codes: F2, ME1
• #### F2-01 ARCHIMEDES' PRINCIPLE

Demonstrates the buoyant force on a body submerged in a fluid to be equal to the weight of the displaced Read More
• #### F2-02: CARTESIAN DIVER

Demonstrate a variety of fluid mechanics phenomena, including the compressibility of a gas, the incompressibility of water, Boyle's law, Pascal's Read More
• #### F2-03: CARTESIAN DIVER - EXPLICIT VERSION

Demonstrate explicitly how a Cartesian diver works by showing how the water enters the diver when the pressure in the Read More
• #### F2-04: BUOYANCY - SPHERE AND WATER

Challenge the students' thinking about the buoyant force by considering the question: "Will a round object, without a flat top Read More

• #### F2-07: BUOYANCY - PEPSI AND DIET PEPSI

Show the difference in density between soft drinks with and without sugar. Read More
• #### F2-08: BUOYANCY - BATTLESHIP IN BATHTUB

Illustrate Archimedes' Law in a counterintuitive manner. Read More
• #### F2-10: BUOYANT BUBBLES

Demonstrate buoyancy and diffusion in an interesting way. Read More
• #### F2-11: HYDROMETER

Measure the density of a liquid. Read More
• #### F2-12: HOT AIR BALLOON

Show that hot air is less dense than cold air by operating a hot air balloon. Read More
• #### F2-13: BOUYANCY - EXPANDING BALLOON CONUNDRUM

Conundrum involving weight of an expanding balloon. Read More
• #### F2-21 REACTION TO BUOYANT FORCE

Demonstrates the reaction force using a liquid. Read More
• #### F2-22: BUOYANCY PARADOX - ACCELERATED FRAME

Illustrate dramatically the concept of buoyancy. Read More

• #### F2-26: BUOYANCY PARADOX - BALL IN TWO LIQUIDS

Demonstrate buoyancy with a counterintuitive element. Read More

• #### F2-31: BUOYANT BALLS IN BEANS

Illustrate buoyancy in a surprising way. Read More
• #### F2-32: FLOATING SQUARE BAR

Illustrate buoyancy and the orientation in which a long square bar floats in a very dramatic way. Read More
• #### F2-41: DENSITY - SLOPE OF MASS VS VOLUME GRAPH

Determine the density of water. Read More
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