Weight in Air
Apparent weight in water
Volume of displaced water
1. Observing; What force is responsible for the difference between the weight of each object in the air and its apparent weight in water? - Buoyant force
2. How is buoyant force related to the weight of water displaced? -Buoyant force is equal to the weight of the displaced water.
3. Define buoyant force and describe two ways you can measure it or calculate it. -the upward force exerted by any fluid upon a body placed in it. -Weight in air decrease by weight in the water. -Buoyant is equal to weight of fluid that object displace.
4. Explain what causes an object to sink or to float, using the terms buoyancy, weight, force, density and gravity. -Gravity pulls object with greater density downward. -Objects float is that at any depth in a fluid there is an upward force due to the effect of gravity on the fluid. -Downward force, due to its weight, is greater than the upward force of the water at that depth.