Fluids Test Overview for Monday

Here is an outline of what will be on Monday's Fluids Test

1.  Be able to predict and explain why floating objects would float higher in a dense fluid like alt water than in a less dense fluid like fresh water.  Think forces.

2.  Calculate a buoyant force given the weight in air and in water  and then be able to calculate the density of the object.  Understand that if it has an apparent weight in water it has sunk.

3.    Calculate the buoyant force in water of a floating object given only its mass in air

4.  Calculate buoyant force of a sunken in water cube given dimensions

5.  Find the density of a rock in kg/ cubic meter given mass and volume in cubic centimeters

6.  Find volume of a helium balloon needed to lift a given payload when mass of balloon skin, payload, density of air and helium and air are given .  This involves algebra solving for volume

7.  Find pressure on a chair leg given mass and contact radius  of one leg

8.  Calculate total or absolute pressure at a given depth in water.  From their calculate gauge pressure.

9.  Solve for velocity of fluid in a pipe given diameter at both ends and speed at one end

10  Explain lift over an aerodynamic structure like a sail or a wing in terms of fluid velocity, pressure and force.