How solids exert pressure.
What is Normal Forces?
*will accept an explanation that involves the compression of solids
How gases exert pressure.
What is "Kinetic Molecular Theory"?
*will accept an explanation
The reason that dams are built wider toward the bottom.
What is pressure increases with increasing depth?
Increasing the density of a fluid will have this effect on a buoyant force acting on a given object.
What is increase the buoyant force?
The S.I. units for pressure
What is a pascal (Pa)?
A force of 1.50 N is applied to an area of 0.0100m2. The pressure exerted on the area is...
What is 150 Pa?
Gases are also fluids. The buoyant force on a person (V = 0.0664 m3) standing on the floor is...
(Hint: density of air = 1.23 kg/m3)
What is 0.800N?
Which is greater? The water pressure 0.150 m below the surface of a bathtub or the water pressure at the bottom of a 0.150m cup?
What is neither?
A ball that weighs 13 N is floating motionless atop the surface of a fluid. the Buoyant force is...
What is 13 N?
If you are unlucky enough a single framing nail can easily go through your foot. Yet you are perfectly safe on a bed of nails. The reason is...
What is an increase in area decreases the pressure?
Your chair legs have a total contact area of 2.46E-3 m2. Assume a student of mass 45.4 kg is sitting in the chair. The pressure exerted on the ground is...
What is 181000 Pa?
Your desks have an approximate surface area of 0.625m2. How much force would the air exert on the top of your desk if we moved it to the top of Mt Everest?
(Hint: Air pressure on top of Mt Everest = 4.00E4 Pa
What is 2500N?
A balloon inflated at great depths may pop as it come up to the surface of the water. This can be explained by...
What is a decrease in pressure while decreasing in depth?
A block of volume 4.00 m3 is fully submerged in honey. The buoyant force on the block is...
(Hint: The density of honey is 1420 kg/m3
What is 55700 N?
The name of the following Principle:
"a pressure change in one part is transmitted without loss to every portion of the fluid and to the walls of the container"
What is Pascal's Principle?
A block is sitting like so on a counter. it has a mass of 2.00 kg. Dimensions of the box are 4.00x10.0x3.00cm. It exerts this amount of pressure on the surface beneath it.
What is 6530 Pa?
An atmosphere pad lays flat on a table. The pad has dimensions of 20.0cm x 20.0 cm. the force required to lift the pad is....
(Hint: Standard Atmosphere = 1.01E5 Pa)
What is 4040 Pa?
Pressure in fluids increase in pressure at greater depth because of...
What is gradational forces?
A spring scale measures a force of 21.1 N when the hanging mass is out of the water. when the object is fully submerged the scale reads 15.2 N.
1) The Buoyant force is...
2) The volume of the object is...
3) The density of the object is...
1) What is 5.90 N?
2) What is 6.02E-4m3
3) What is 3580 kg/m3
A hydraulic lift is comprised of two pistons, one that is larger and one that is smaller. A 2250N weight is resting on the larger piston. The smaller piston has an area of 0.0143m2 and the larger piston has an area of 1.06m2. We apply a force of _____ to the smaller piston to move the weight.
What is 30.4N?
Two stacked boxes of equal density are resting upon a table top. the smaller box has a mass of 0.250 kg, dimensions of 2.00x2.00x2.00cm, and rests atop the larger box. The larger box has dimensions of 6.00x6.00x6.00cm and rests on the table.
1) The pressure on the larger box from the smaller box is...
2) The pressure on the table from the stacked boxes is...
1) What is 6130 Pa?
2) What is 19100 Pa?
A reservoir behind a dam is 40.0 m deep. The water pressure on the dam halfway up the reservoir is...
What is 196000N?
A ball is connected to the bottom of a tank of water with a length of massless string. If the ball has a mass of 0.531 kg and has a volume of 6.22E-3m3 the apparent weight of the ball is...
What is -55.8N?
Archimedes Principle is...
What is buoyant force is equal to the weight of the displaced fluid?