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II. Describing Motion
II. Describing Motion

... ◦ An object at rest will remain at rest and an object in motion will continue moving at a constant velocity unless acted upon by a net force. ...
Chapter 5 Worksheets - School District of La Crosse
Chapter 5 Worksheets - School District of La Crosse

... 1. What does the second law forces cause what? 2. if a 500n force moves a 60Kg mass, what is the acceleration on a frictionless surface? ...
Exploring Newtons` Second Law using Simulations
Exploring Newtons` Second Law using Simulations

... Spend 5 minutes exploring the sim. Find out the following: How do you select an object? How do you change the mass of the object? How do you apply a push? How do you change the force of the push? How do you determine the total (net) force being applied to the object? Can you turn the free body diagr ...
Mid term practice problems
Mid term practice problems

... of the surface, and it is only valid for liquids. False. Viscous fluid (not only liquids also gases) always tends to cling to a solid surface in contact with it. (c) (2 points) (T/F) When an interface is a plane so that the radius of curvature is infinite, the pressure difference across the interfac ...
What Was THAT Again?
What Was THAT Again?

... KINEMATICS Two objects side by side must have the same speed. Acceleration and velocity are always in the same direction. Velocity is a force. If velocity is zero, then acceleration must be zero too. FALLING BODIES Heavier objects fall faster than light ones. Acceleration is the same a ...
Mechanical Equilibrium
Mechanical Equilibrium

... You can express the equilibrium rule mathematically as ∑F = 0. ...
Monday, February 11, 2013
Monday, February 11, 2013

... Galileo’s statement on natural states of matter: Any velocity once imparted to a moving body will be rigidly maintained as long as the external causes of retardation are removed!! Galileo’s statement is formulated by Newton into the 1st law of motion (Law of Inertia): In the absence of external forc ...
What does a force do? Part I
What does a force do? Part I

... For activities 8.1 through 8.5, use the PHET Simulation called: Forces in One Dimension. This can be accessed at: http://phet.colorado.edu/simulations/sims.php?sim=Forces_in_1_Dimension Then change the settings: On the right side of the window just below the force diagram, deselect “Show horizontal ...
Fluid Dynamics
Fluid Dynamics

... area. He especially wanted to incorporate pressure into his idea as well. Conceptually, his principle is stated as: " If the velocity of a fluid increases, the pressure decreases and vice versa." The velocity can be increased by pushing the air over or through a CONSTRICTION ...
Notes on Newton`s Laws of Motion
Notes on Newton`s Laws of Motion

... Newton’s Second Law of Motion • “The acceleration of an object is equal to the net force acting on it divided by the object’s mass” • Acceleration = net force/mass, or a = F/m • Mass is the amount of matter in an object and stays constant • Weight is the force of gravity on an object and can change ...
Part 2
Part 2

... A 5-kg block slides down a ramp with negligible friction and air drag. The ramp angle, the angle formed by the ramp surface and the horizon, is 30. Find the acceleration of the block and the size of the normal force exerted by the ramp on the block. How does the size of the normal force compare to ...
Forces
Forces

...  Relate force to motion.  In a nutshell:  Law 1: An object’s velocity doesn’t change unless acted upon by a net force.  Law 2: The acceleration of an object upon which a force is acting depends on the amount of net force being applied and on the mass of the object.  Law 3: For every force, ther ...
OLE11_SCIIPC_TX_04D_TL_1
OLE11_SCIIPC_TX_04D_TL_1

... The acceleration of an object is in the same direction as the net force. The formula can be arranged to show how much force must be applied to an object to get it to accelerate at a certain rate. Net force = Mass × Acceleration or F = ma For example, you apply a net force to a ball when you throw it ...
File - Martin Ray Arcibal
File - Martin Ray Arcibal

... Newton’s Second law – Constant Mass, Changing Force (Motion Sensor) 1. Purpose The purpose of this experiment is to test the validity of Newton’s second law of motion, which states that the acceleration of an object is directly proportional to the net force applied to the object and inversely propor ...
Newton`s Laws of Motion Project
Newton`s Laws of Motion Project

...  A change in motion occurs only if a net force is exerted on an object.  A net force changes the velocity of the object, and causes it to accelerate.  If an object is acted upon by a net force, the change in velocity will be in the direction of the net force.  The acceleration of an object depen ...
Newton`s Laws of Motion Project
Newton`s Laws of Motion Project

Factors affecting terminal velocity
Factors affecting terminal velocity

... examples include stop watch, parachute, video camera, measuring tape and so on. ...
Forces part1
Forces part1

... • We will not use the term "weight of an object" because it implies that weight is a property of the object rather than an © 2014 Pearson interaction between two objects. Education, Inc. ...
Dynamics Presentation
Dynamics Presentation

... An object sliding down an incline has three forces acting on it: the normal force, gravity, and the frictional force. • The normal force is always perpendicular to the surface. • The friction force is parallel to it. • The gravitational force points down. If the object is at rest, the forces are the ...
Balanced and Unbalanced Forces Balanced Forces But what
Balanced and Unbalanced Forces Balanced Forces But what

... Consider another example involving balanced forces - a person standing on the floor. There are two forces acting upon the person. The force of gravity exerts a downward force. The floor exerts an upward force. Since these two forces are of equal magnitude and in opposite directions, they balance eac ...
Chapter 3 lecture notes pdf
Chapter 3 lecture notes pdf

... the air drag it encounters when it falls at constant velocity? 3. Upon which will air resistance be greater; a sheet of falling paper or the same paper wadded into a ball if they have both reached terminal velocity? (Careful!) 4. Aristotle claimed the speed of a falling object depends on its weight. ...
Newton`s Laws - Northern Highlands
Newton`s Laws - Northern Highlands

kg m/s 2
kg m/s 2

... line motion (i.e., motion with constant velocity) until acted upon by an unbalanced force • inertia: concept introduced by Galileo – an object’s tendency to resist changes in its motion – mass of an object: a measure of the amount of inertia the object has • an object with a larger mass has more ine ...
In the absence of external forces, when viewed from an inertial
In the absence of external forces, when viewed from an inertial

... reference frames called inertial frames. This law can be stated as follows: If an object does not interact with other objects, it is possible to identify a reference frame in which the object has zero acceleration. Such a reference frame is called an inertial frame of reference. Any reference frame ...
A force is a
A force is a

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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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