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... What are the forces acting on it?  The Earth pulls down – force of gravity – W  The table pushes up – force of support – FN [Note: FN is the normal (perpendicular) force – the force of support an object gets from the surface on which it rests – it is always  to the surface, so but also ...
Academic Vocabulary Words #10
Academic Vocabulary Words #10

... 9. Newton’s Third Law of Motion • If one object exerts a force on another object, then the second object exerts a force of equal strength and opposite direction on the first object. ...
MOTION, FORCES, AND WORK
MOTION, FORCES, AND WORK

... 7. Friction: the force that one surface exerts on another when the two rub against each other 8. Gravity: the force that pulls objects toward each other 9. Air resistance: the friction experienced by objects falling through the air 10. Weight: the force of gravity on an object at the surface of a pl ...
Linear Motion Curved Motion Elliptical Orbit Momentum Principle
Linear Motion Curved Motion Elliptical Orbit Momentum Principle

Homework #4 SUR 110 Name: Date: Define the Following Terms: 1
Homework #4 SUR 110 Name: Date: Define the Following Terms: 1

... 14) Degrees of Freedom: In an unconstrained dynamic or other system, the number of independent variables required to specify completely the state of the system at a given moment. A.K.A. how many ways a robotic arm can move __________________________________________________________________ __________ ...
Newton`s laws
Newton`s laws

Chapter 5a
Chapter 5a

... between the force exerted on an object and the acceleration of the object. • Forces • Newton’s three laws. ...
FORCE and MOTION UNIT VOCABULARY
FORCE and MOTION UNIT VOCABULARY

... The force equal and opposite to gravity The formula for finding speed. Speed (m/sec) = distance (m) / time (sec) The distance traveled by an object in an amount of time. ...
Chapter 9
Chapter 9

... In a car lift used in a service station, compressed air exerts a force on a small piston of circular cross section having a radius of 5.00 cm. This pressure is transmitted by an incompressible liquid to a second piston of radius 15.0 cm. (a) what force must the compressed air exert in order to lift ...
Chapter 9
Chapter 9

... Solids have Young’s, Bulk, and Shear moduli Liquids have only bulk moduli, they will not undergo a shearing or tensile stress ...
Newton`s Second Law Pages 46-48
Newton`s Second Law Pages 46-48

... The air resistance on an object depends on two things. What are they? 1. The shape of the object. 1. The speed of the object. ...
Name____________________________________
Name____________________________________

... 16. Which of the following is an example of a balanced force? a. person skating back and forth b. tire with treads gaining speed on an icy road c. book resting on a desk. 17. Which of the following describes acceleration? a. the change in the position of an object compared with a ...
Sci_ch9_lesson_2_notes
Sci_ch9_lesson_2_notes

... Lesson 2 Forces and Motion A force is any push or pull from one object to another. Newtons (N) and pounds (lb) are units of force. A spring scale is used to measure force. Most forces occur when an object touches another, but forces an act without touching. (compass needle) Lift, thrust, and drag ar ...
Newton`s Laws
Newton`s Laws

... – the tendency of an object to resist a change in its motion  In order to overcome an object’s inertia, a force must be exerted on the object.  Newton’s 1st Law is also called the Law of Inertia  Inertia ...
02-5-net-force-with
02-5-net-force-with

... Example Suppose that 0.10 s after a 0.050-kg model rocket is launched, the rocket is moving directly upward with a speed of 12 m/s. Assume that the thrust on the rocket due to the engine is approximately constant during this time interval and is 8.0 N, upward. What is the (average) force of air on ...
Newton`s Laws of Motion
Newton`s Laws of Motion

... Example 4 You throw a 5 kg bowling ball out of a second story physics classroom window. It accelerates downward at 9.8 m/s2. What is the upward acceleration of the Earth due to the bowling ball? The mass of the Earth is 5.972e24 kg. ...
Free Body Diagrams
Free Body Diagrams

... surface with applied force and friction with one greater than the other 8-True free fall-no force opposes the weight ...
Chapter 11
Chapter 11

... may need to sum the forces vectorially to obtain the net force. Remember that each force is perpendicular to the surface on which it acts. In some cases, you may need to use Newton's second law to find the force. To calculate the variation of pressure with depth in a static incompressible fluid, use ...
Newton`s law clickview worksheet File
Newton`s law clickview worksheet File

... Explain why a table cloth pulled slowly moves an object with it but when pulled quickly slides from underneath the object? ...
Force and Motion Force: a push or a pull that causes a change in
Force and Motion Force: a push or a pull that causes a change in

Chapter 9 Fluid Mechanics
Chapter 9 Fluid Mechanics

forces and newton`s laws of motion
forces and newton`s laws of motion

Fluids
Fluids

... The water exerts an upward force that is opposite the direction of gravity called the buoyant force. ...
Momentum and Energy
Momentum and Energy

... 1. The third floor of a house is 8 m above street level. How much work is needed to move a 150 kg refrigerator to the third floor? 1. During a tug-of-war, team A does 2.2 x 105 J of work in pulling team B 8 m. What force did team A exert? 1. A wagon is pulled by a force of 38 N exerted on the handle ...
Newton`s Laws
Newton`s Laws

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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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