The purpose of this lab is to calculate buoyant
forces of objects
submerged in water.
The first step in the lab was to measure the mass of a metal cylinder, which was found to be 100g, and then to calculated it's weight, which was .98 newtons. Then next step was to measure the apparent weight of the cylinder when it is completely submerged in a bath of water using the formula Wa=ma*g , this was found to be 88.5grams. Knowing these two numbers, the buoyant force that

the water places on the object can be calculated using the formula Fb=W-Wa , Wa=.8673n W=.98n Fb=.1127n
Part 2 of this lab consisted of weighing an empty cup, which was 44grams. And then filling another cup up to a certain point the if any more water was added, it would spill out of a little opening in the cup, the water spilled out could be caught in the first cup. This is done so that the water spilled out can be weighed and compared to a calculated weight of which the water should be. After filling the cup, the cylinder was put into the cup , allowing the water to spill out and be caught in the first cup. After the water had spilled out it was weighed, which was 8.3g, converted to kg was .0083g. The weight of this displaced water in Newtons was 0.081423n.

The percentage error with the buoyant force from step one was calculated using, this resulted, using .114 for Fb and .0813 for Wdisp, a 28.7% error.
After completing this lab, it has become more apparent as to how to calculate buoyant
forces and how that information can be used.

...defined as the force acting perpendicular to a unit area. It is the result of a force distributed over an area. A theater seat’s large padded seat and back offer a larger area to support your weight than a bicycle seat does. Thus, the theater seat exerts less pressure on you and is more comfortable than the bicycle seat. Many other everyday situations also involve pressure and it is not only about the theater or bicycle seat but as well as in fluids. To calculate...

...3.4.1 Study: BuoyantForce and Archimedes' Principle
Physical Science (S2541215)
Study SheetStudy Sheet
Claire Hasenoehrl
Date: ____________
Use the spaces below to take notes on the key concepts presented in this study.
Main idea: Buoyancy of an object is determined by properties of the object as well as properties of the
fluid surrounding it.
density=mass/volume
More dense at
bottom
The result of pressure exerted
equally in all horizontal directions
by...

...HYDROSTATIC FORCE (EXPERIMENT 1)
INTRODUCTION
The determination of force which are exerted by liquid which are at rest on surface immersed in liquids. From the study by hydrostatic, the following principles have been established :
a) There are no shear stress present when the fluid is not in motion.
b) The pressure exerted by a fluid under hydrostatic conditions. This pressure acts perpendicular to an immersed surface.
c) Hydrostatic pressure...

... Buoyancy, Force, and Gravity
Purpose: To check the buoyancy of the object measured in Newton.
Hypothesis: I think the force pulling down on the clay might be heavier then the container with water and clay.
Apparatus:
1 small beaker (mL)
1Graduated cylinder
1 container
1 small portion of clay
can
Spring scale (newtons)
Tap water
1 Cloth
Method:
First, hang the clay on the hook of the Newton spring scale.
Secondly, record the measurements....

...questions: force and motion I problem 1 The figure below is an overhead view of a 12 kg tire that is to be pulled by three ropes. One force (Fl, with magnitude 50 N) is indicated. Orient the other two forces F2 and F3 so that the magnitude of the resulting acceleration of the tire is least, and find that magnitude if (a) F2 = 30N, F3= 20 N; (b) F2= 30 N, F3 = 10 N; and (c) F2 = F3 = 30 N.
problem 2 A weight-conscious penguin with a mass of 15.0 kg...

...1
1
A wooden block of mass 0.60 kg is on a rough horizontal surface. A force of 12 N is applied to the
block and it accelerates at 4.0 m s –2.
4.0 m s–2
wooden block
12 N
What is the magnitude of the frictional force acting on the block?
A
B
9.6 N
C
14 N
D
2
2.4 N
16 N
A submarine descends vertically at constant velocity. The three forces acting on the submarine
are viscous drag, upthrust and weight.
Which...

...Physics notes
Force is an agent which produces or tends to produce motion in an object, stops or tends to stop , motion of an object
Newton's 1st law of motion:
If an object is at rest, will remain at rest until or unless an external force act on it. If an object is in motion , it continues its motion until or unless an external force act on it
Newton's 1st law of motion is also called first law of inertia.
Inertia:
The tendency of an...

...acceleration = sum of all net forces is zero
* An object in orbit around the earth is not truly weightless
* Sitting half as far away from your class mate the gravitation force is four times as strong. (re2)
* Newton’s First Law- inertia an object that is not moving will remain at rest (ex: and apple hanging from a tree)
* The reason you head feels like it jerks back ward is when pulling away from a stop sign is due to Newtons first law
* If...

1249 Words |
4 Pages

Share this Document

Let your classmates know about this document and more at StudyMode.com

## Share this Document

Let your classmates know about this document and more at StudyMode.com