Free Fall - Cobb Learning
... 2. How do we calculate speed of an object if it is in free fall? 3. What does g represent? What’s is it’s numerical value? 4. How do we calculate the distance an object falls when it is in free fall? ...
... 2. How do we calculate speed of an object if it is in free fall? 3. What does g represent? What’s is it’s numerical value? 4. How do we calculate the distance an object falls when it is in free fall? ...
Ch 6 Work, Power, Energy
... A dancer lifts a 40 kg ballerina 1.4 m in the air and then walks forward 2.2 m. How much work is done on the ballerina during and after the lift? ...
... A dancer lifts a 40 kg ballerina 1.4 m in the air and then walks forward 2.2 m. How much work is done on the ballerina during and after the lift? ...
Sci 8-Ch. 2-Les 2 WKS
... Directions: On each line, write the term from the word bank that correctly completes each sentence. Some terms may be used more than once. ...
... Directions: On each line, write the term from the word bank that correctly completes each sentence. Some terms may be used more than once. ...
CH 3—Forces
... becomes large enough to cancel the force of gravity. • The forces on the falling objects are balanced, so the object no longer accelerates. • It then falls at a constant speed called the terminal velocity (highest velocity a falling object ...
... becomes large enough to cancel the force of gravity. • The forces on the falling objects are balanced, so the object no longer accelerates. • It then falls at a constant speed called the terminal velocity (highest velocity a falling object ...
Forces: Newton`s Laws
... • If two surfaces are in contact, welding or sticking occurs where the bumps touch each other. These microwelds cause friction. • The larger the force pushing the two surfaces together is, the stronger these microwelds will be, because more of the surface bumps will come ...
... • If two surfaces are in contact, welding or sticking occurs where the bumps touch each other. These microwelds cause friction. • The larger the force pushing the two surfaces together is, the stronger these microwelds will be, because more of the surface bumps will come ...
Lecture 13 - Fluids
... • The direction of the force just depends on the direction of spin (so you can get it to curve either direction, down, up, or even at some weird angle as is the case of a knuckleball). ...
... • The direction of the force just depends on the direction of spin (so you can get it to curve either direction, down, up, or even at some weird angle as is the case of a knuckleball). ...
Forces act everywhere. They cause changes in motion and also act
... A newton is a unit of force such that a body of mass 1 kilogram weighs 9.8 newtons. When this unit of force is used the constant of proportionality, k, has the same numerical value as g, the acceleration due to gravity. So if the mass of an object is m kilograms, then its weight, W, measured in newt ...
... A newton is a unit of force such that a body of mass 1 kilogram weighs 9.8 newtons. When this unit of force is used the constant of proportionality, k, has the same numerical value as g, the acceleration due to gravity. So if the mass of an object is m kilograms, then its weight, W, measured in newt ...
Chapter 3 Notes
... penny from the top of the school building. If it takes 5 seconds for the penny to hit the ground, what is the speed of the penny just before ...
... penny from the top of the school building. If it takes 5 seconds for the penny to hit the ground, what is the speed of the penny just before ...
P5.28 (p.138)
... P5.33c: Your normal weight is 610 N and the scale in the elevator reads 720 N. The magnitude of the velocity of the elevator is A. increasing. B. decreasing. C. zero. D. impossible to determine without more ...
... P5.33c: Your normal weight is 610 N and the scale in the elevator reads 720 N. The magnitude of the velocity of the elevator is A. increasing. B. decreasing. C. zero. D. impossible to determine without more ...
Chapter 5 Section 2
... Chapter 5:2: What is a Force? Answer the following questions. 1. Define Force. 2. Explain the difference between balanced and unbalanced forces and how each affects the motion of an object. ...
... Chapter 5:2: What is a Force? Answer the following questions. 1. Define Force. 2. Explain the difference between balanced and unbalanced forces and how each affects the motion of an object. ...
Week 2
... A vertical mass-spring system with a force constant of 40 kg/s2 (i.e., 40 N/m) is extended an additional 5.4 cm and released. The total mechanical energy in its subsequent oscillations = ______________ J. ...
... A vertical mass-spring system with a force constant of 40 kg/s2 (i.e., 40 N/m) is extended an additional 5.4 cm and released. The total mechanical energy in its subsequent oscillations = ______________ J. ...
Air Pressure, Forces, and Motion
... 3. Friction On average Gravity nearly balances the vertical Pressure gradient (hydrostatic balance) ...
... 3. Friction On average Gravity nearly balances the vertical Pressure gradient (hydrostatic balance) ...
Unit 4 – Force and the Laws of Motion
... c. break forces into x and y components using trigonometry. d. state whether the velocity of the object is constant or changing. 3. Understand and apply Newton's 3rd Law. Recognize that all forces come in pairs; paired forces are equal in magnitude, but opposite in direction. FAB = -FBA Newton's 3rd ...
... c. break forces into x and y components using trigonometry. d. state whether the velocity of the object is constant or changing. 3. Understand and apply Newton's 3rd Law. Recognize that all forces come in pairs; paired forces are equal in magnitude, but opposite in direction. FAB = -FBA Newton's 3rd ...
Chapter 9
... • All real “rigid” bodies can change their dimensions as a result of pulling, pushing, twisting, or ...
... • All real “rigid” bodies can change their dimensions as a result of pulling, pushing, twisting, or ...
01 - Edmodo
... III. Forces exerted by the object are represented. a. I and II b. I and III c. II and III d. I, II, and III _____ 7. The gravitational force exerted on an object would most likely be represented by which force vector? a. b. c. d. _____ 8. Two books are lying next to each other on a library t ...
... III. Forces exerted by the object are represented. a. I and II b. I and III c. II and III d. I, II, and III _____ 7. The gravitational force exerted on an object would most likely be represented by which force vector? a. b. c. d. _____ 8. Two books are lying next to each other on a library t ...
Newton`s Laws of Motion
... An object at rest remains at rest and an object in motion remains in motion at constant speed and in a straight line unless acted upon by an outside force. In order to stop motion, an outside force must act on the object. Friction is an outside force. ...
... An object at rest remains at rest and an object in motion remains in motion at constant speed and in a straight line unless acted upon by an outside force. In order to stop motion, an outside force must act on the object. Friction is an outside force. ...
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.