• Study Resource
  • Explore Categories
    • Arts & Humanities
    • Business
    • Engineering & Technology
    • Foreign Language
    • History
    • Math
    • Science
    • Social Science

    Top subcategories

    • Advanced Math
    • Algebra
    • Basic Math
    • Calculus
    • Geometry
    • Linear Algebra
    • Pre-Algebra
    • Pre-Calculus
    • Statistics And Probability
    • Trigonometry
    • other →

    Top subcategories

    • Astronomy
    • Astrophysics
    • Biology
    • Chemistry
    • Earth Science
    • Environmental Science
    • Health Science
    • Physics
    • other →

    Top subcategories

    • Anthropology
    • Law
    • Political Science
    • Psychology
    • Sociology
    • other →

    Top subcategories

    • Accounting
    • Economics
    • Finance
    • Management
    • other →

    Top subcategories

    • Aerospace Engineering
    • Bioengineering
    • Chemical Engineering
    • Civil Engineering
    • Computer Science
    • Electrical Engineering
    • Industrial Engineering
    • Mechanical Engineering
    • Web Design
    • other →

    Top subcategories

    • Architecture
    • Communications
    • English
    • Gender Studies
    • Music
    • Performing Arts
    • Philosophy
    • Religious Studies
    • Writing
    • other →

    Top subcategories

    • Ancient History
    • European History
    • US History
    • World History
    • other →

    Top subcategories

    • Croatian
    • Czech
    • Finnish
    • Greek
    • Hindi
    • Japanese
    • Korean
    • Persian
    • Swedish
    • Turkish
    • other →
 
Profile Documents Logout
Upload
File
File

Chapter 5 Review Questions
Chapter 5 Review Questions

f - Michigan State University
f - Michigan State University

... was moving with a certain velocity, it will keep on moving with the same velocity.  Second Law: The acceleration of an object is proportional to the net force acting on it, and inversely proportional to its mass: F=ma  If two objects interact, the force exerted by the first object on the second is ...
TE0011_1_Force Expectations at Key Stage 2 Sc4 2 FORCES
TE0011_1_Force Expectations at Key Stage 2 Sc4 2 FORCES

... As it starts to move, it pushes through the air causing air resistance which acts in an opposing direction to the gravity. In the early stage of the descent, the forces are still somewhat unbalanced and while the object does continue to accelerate towards the ground – it does so at a slower rate of ...
2.1 Forces change Motion
2.1 Forces change Motion

... objects, like pushing or pulling. Example: pushing a book across a table. ...
Newton`s Laws of Motion and Vectors
Newton`s Laws of Motion and Vectors

... “Every object continues in a state of rest or of uniform speed in a straight line unless acted upon by a nonzero net force.” ...
Assignment 8 Solutions
Assignment 8 Solutions

Review Questions
Review Questions

... A Shaun's displacement equals Mark's displacement, but Jeff's displacement is ...
Conceptual Physics
Conceptual Physics

... 26. Standing on one foot cause the pressure exerted on the floor to double because area was cut in half. Using snowshoes cause the pressure exerted to decrease because area is increased. 27. Examples of action-reaction force pairs: a) Ball on bat: bat on ball b) Foot on ground: ground on foot c) Ham ...
Word
Word

... The only force acting on each can is a gravitational force, which is linearly proportional to the mass of the can. Newton’s second law states that the acceleration of an object is linearly proportional to the net force acting and inversely proportional to its mass. Therefore, both objects will exper ...
FORCE CONCEPT WS – honors
FORCE CONCEPT WS – honors

... The only force acting on each can is a gravitational force, which is linearly proportional to the mass of the can. Newton’s second law states that the acceleration of an object is linearly proportional to the net force acting and inversely proportional to its mass. Therefore, both objects will exper ...
Effective Force & Newton`s Laws
Effective Force & Newton`s Laws

... Velocity: the rate of positional change of an object Momentum = mass (kg) x velocity (m/s) An object can only have momentum if it is moving To increase momentum, an object must either increase its _________ or its __________ ...
Motion - RowesPhysicalScience
Motion - RowesPhysicalScience

... Delta V = gravity(g) x time(t); where Acceleration of gravity = 9.8 m/s2 and time it takes to fall. 5. What is a force? Push, pull, gravity, friction, balanced and unbalanced forces, net force, vector You can change an objects motion by pushing it, pulling it, nudging it, or by any number of other t ...
Practice exam 2
Practice exam 2

... b) The magnitude of the work done by the gravitational force is larger than that done by the tension force. c) The net work done by the two forces is zero joules. d) The work done by the tension force is zero joules. e) The work done by the gravitational force is zero joules 12. Two objects have the ...
Misconceptions in teaching forces
Misconceptions in teaching forces

Physical Science - Pleasant Hill High School
Physical Science - Pleasant Hill High School

Physical Science Study Guide
Physical Science Study Guide

... a. resistance to flow c. average kinetic energy b. adhesive forces d. buoyancy ____ 30. All of the following are a state of matter EXCEPT ____. a. solid c. liquid b. gas d. density ____ 31. Density is an example of a ____. a. chemical property c. physical property b. chemical change d. physical chan ...
Forces and Motion Test 1
Forces and Motion Test 1

... 23) Robert decides it would be fun to jump off of the back of his canoe while fishing in the lake one day. After he jumps out of the canoe, he notices that the canoe has moved away from where he jumped. Which statement BEST explains why this occurred? A) An object at rest stays at rest. B) An objec ...
Chapter 4
Chapter 4

... • Newton’s Second Law can be applied to all the components separately • To solve problems with Newton’s Second Law we need to consider a free-body diagram • If the system consists of more than one body, only external forces acting on the system have to be considered • Forces acting between the bodie ...
Force = mass x acceleration
Force = mass x acceleration

... 3. What is the mass of a female Sumo Wrestler that weighs 750N? Fg=mg a. 7,350kg b. 76.5kg c. 765g d. 73.5g 4. If there is no net force on an object, it will a. not change motion b. change motion c. move ...
Ch. 12 Review Period: Name: Physical Science Date: Remember as
Ch. 12 Review Period: Name: Physical Science Date: Remember as

... 26. How do the direction of net force compare to the direction of acceleration? 27. What happens when the net force points in the same direction as the object’s velocity? 28. What happens when the net force points in the opposite direction as the object’s velocity? 29. What happens when the net forc ...
Lecture 28
Lecture 28

... completely submerged in a liquid, although A is deeper than B. Which object, if either, experiences the greater buoyant force? A) Object B, because the closer an object is to the surface, the greater is the buoyant force. B) Both objects experience the same buoyant force. C) Object A, because, being ...
Newton`s Second Law of Motion
Newton`s Second Law of Motion

... The force of friction acts on any objects, which are in contact with each other ...
Forces and Friction Worksheet (Key)
Forces and Friction Worksheet (Key)

... • Friction is a force caused by two objects rubbing together. Friction acts in the opposite direction of motion. Friction keeps you from slipping when you walk. Friction also makes a car’s brakes work. • The amount of friction depends on two things: how smooth the objects are and how hard they push ...
Forces - Needham.K12.ma.us
Forces - Needham.K12.ma.us

... It is harder to understand that an object will continue to move without help. Think of the bike again. If someone is riding a bike and jumps off before the bike is stopped what happens? The bike continues on until it falls over. The tendency of an object to remain still, or keep moving in a straigh ...
< 1 ... 141 142 143 144 145 146 147 148 149 ... 209 >

Buoyancy



In science, buoyancy (pronunciation: /ˈbɔɪ.ənᵗsi/ or /ˈbuːjənᵗsi/; also known as upthrust) is an upward force exerted by a fluid that opposes the weight of an immersed object. In a column of fluid, pressure increases with depth as a result of the weight of the overlying fluid. Thus the pressure at the bottom of a column of fluid is greater than at the top of the column. Similarly, the pressure at the bottom of an object submerged in a fluid is greater than at the top of the object. This pressure difference results in a net upwards force on the object. The magnitude of that force exerted is proportional to that pressure difference, and (as explained by Archimedes' principle) is equivalent to the weight of the fluid that would otherwise occupy the volume of the object, i.e. the displaced fluid.For this reason, an object whose density is greater than that of the fluid in which it is submerged tends to sink. If the object is either less dense than the liquid or is shaped appropriately (as in a boat), the force can keep the object afloat. This can occur only in a reference frame which either has a gravitational field or is accelerating due to a force other than gravity defining a ""downward"" direction (that is, a non-inertial reference frame). In a situation of fluid statics, the net upward buoyancy force is equal to the magnitude of the weight of fluid displaced by the body.The center of buoyancy of an object is the centroid of the displaced volume of fluid.
  • studyres.com © 2025
  • DMCA
  • Privacy
  • Terms
  • Report