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Outline
Outline

... down), so in our case, acceleration would be negative and using the equation: F=m(g+a), F=m(g-a); thus you would be lighter.” Physics 101: Lecture 5, Pg 12 ...
Motion
Motion

... 2. A force = a ________ or a _________. 3. Units of force = ______________ 4. As distance increases, gravitational pull ...
newtons laws 2015
newtons laws 2015

... to try to move a heavy cart. The people are standing on a rug. Someone nearby notices that the rug is slipping. How much force must be applied to the rug to keep it from slipping? Sketch the action and reaction forces acting between the people and the cart and between the people and the rug. ...
Martin Cunningham`s Unit One Higher Notes
Martin Cunningham`s Unit One Higher Notes

... Any object that is thrown, launched or falls through the air is known as a projectile. The path travelled by the projectile is known as its trajectory. In our study of projectile motion, we assume that air resistance has no affect. In reality, air resistance makes the values we obtain from our calcu ...
6.1 Equilibrium
6.1 Equilibrium

Unit 6 Powerpoint
Unit 6 Powerpoint

... The force of static friction supplies the centripetal force The maximum speed at which the car can negotiate the curve is Note, this does not depend on the mass of the car ...
Exam Review Answer Key 1)  Force of Friction = 50N
Exam Review Answer Key 1) Force of Friction = 50N

... g. True - There are two broad categories of forces - contact forces and field forces. Contact forces, by definition, are those which result from the physical contact of two forces. h. True (mostly) - A field force is a force which can acts between two objects even when they are separated by a distan ...
Core Review 1 - davis.k12.ut.us
Core Review 1 - davis.k12.ut.us

... Standard 2: Students will understand the relation between force, mass, and acceleration. Objective 1: Analyze forces acting on an object. Write 1st, 2nd or 3rd law in each blank for the law the best explains the situation. _________ 18) An object’s acceleration is proportional to the net force on it ...
PART I FLUID DYNAMICS
PART I FLUID DYNAMICS

Semester 1 Review
Semester 1 Review

... __________), and an object at rest will remain at rest, unless acted upon by an ________________ force. This means that if an object is moving with constant velocity OR at rest, the forces acting on the object are _____________________. That is to say that the sum of the forces acting on the object ...
A moving company uses the pulley system in figure 1 to lift heavy
A moving company uses the pulley system in figure 1 to lift heavy

... Newton’s 1st, Newton’s 2nd or Newton’s 3rd Law 13. For every force, there is an equal and opposite force. __________________ 14. An object in motion will stay in motion unless a force acts upon it. _______________ 15. A force that acts upon a mass will make it accelerate. _________________ 16. The ...
grade 9 physics notes
grade 9 physics notes

... 1. Gravitational force is an attractive force between objects with mass. It is greater if the mass of the object or the planet is more. 2. Friction is the resistive force acting between two surfaces in motion. It is greater at higher speeds. 3. Air resistance is the frictional force exerted by air o ...
The Effective Mass of a Ball in the Air
The Effective Mass of a Ball in the Air

... is the acceleration of gravity, B = mair g is the buoyant force, mair is the mass of the air displaced by the ball, D is the drag force (a function of the ball's velocity), a is the downward acceleration and ma is the added mass. All of these terms should be familiar to physics students, except prob ...
PHY205 Physics of Everyday Life
PHY205 Physics of Everyday Life

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Chapter 4 Notes

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Study Notes Lesson 10 Newton`s Third Law of Motion

Year-9- Vectors and Scalars Velocity and Acceleration Scalar
Year-9- Vectors and Scalars Velocity and Acceleration Scalar

... 1. Gravitational force is an attractive force between objects with mass. It is greater if the mass of the object or the planet is more. 2. Friction is the resistive force acting between two surfaces in motion. It is greater at higher speeds. 3. Air resistance is the frictional force exerted by air o ...
presentation source
presentation source

... That change in direction for our object moving eastward with velocity U, is toward the south, i.e., to the right of the direction of motion in the northern hemisphere. (In other words, it is causing a change in the north-south velocity of the parcel). The vertical component is much smaller than t ...
Force and Motion II
Force and Motion II

... sectional area of the moving object, ρ is the density of the surrounding fluid, and v is the object’s speed. Consider an object (a cat of mass m in this case) start moving in air. Initially D = 0. As the cat accelerates D increases and at a certain speed vt D = mg At this point the net force and thu ...
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Force

... Unbalanced Forces • Unbalanced forces are not equal, and they always cause the motion of an object to change the speed and/or direction that it is moving. ...
Text
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... features here that we want to address. First, since we know that if an object is at rest or moving with constant velocity, its acceleration is zero. From Newton’s Second Law, we already know that if an object’s acceleration is zero, the total force acting on it must be zero also. So what’s new here? ...
Physics Midterm Review Multiple-Choice Questions
Physics Midterm Review Multiple-Choice Questions

... 25. A net force F acts on a mass m and produces an acceleration a. What acceleration results if a net force 3F acts on mass 6m? A. a/2 B. 8a C. 4a D. 2a E. a/4 26. A loaded truck collides with a car causing a huge damage to the car. Which of the following is true about the collision? A. The force o ...
Thursday, June 9, 2005
Thursday, June 9, 2005

... Resistive force exerted on a moving object due to viscosity or other types of frictional properties of the medium in, or surface on, which the object moves. These forces are either proportional to the velocity or the normal force. Force of static friction, fs: The resistive force exerted on the obje ...
printer-friendly version of benchmark
printer-friendly version of benchmark

... Gravity and Falling Objects At the Earth’s surface, all objects, regardless of their mass, free fall with the same acceleration. This is known as the acceleration due to Earth’s gravity (g) and has a value of approximately 10 m/s2 (accepted value = 9.8 m/s2). Personal experience with falling objects ...
Newton`s First Law is
Newton`s First Law is

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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.
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