Circular Motion Notes File
... will be pulled away from its straight-line path, and will follow a circular path. As long as the string is pulled toward this central point, the ball will continue moving in a circle at a constant speed. An object moving in a circle at a constant speed is said to be in uniform circular motion (UCM). ...
... will be pulled away from its straight-line path, and will follow a circular path. As long as the string is pulled toward this central point, the ball will continue moving in a circle at a constant speed. An object moving in a circle at a constant speed is said to be in uniform circular motion (UCM). ...
Chapter 5 Work and Energy conclusion
... Energy can neither be created not destroyed, but can only be converted from one form to another. The result of a non-conservative force is often to remove mechanical energy and transform it into heat energy. Heat energy is the kinetic or vibrational energy of molecules. Examples of heat generation: ...
... Energy can neither be created not destroyed, but can only be converted from one form to another. The result of a non-conservative force is often to remove mechanical energy and transform it into heat energy. Heat energy is the kinetic or vibrational energy of molecules. Examples of heat generation: ...
9A EXPERIMENT Rotational Motion 1
... addition, it will construct a data table with the values of the angular velocity and time from its plot. LabVIEW will ask you to assign your data file a name. Transfer your data file into Kaleidagraph. To do this left click on the data file and drag it over the Kaleidagraph icon on the computer’s de ...
... addition, it will construct a data table with the values of the angular velocity and time from its plot. LabVIEW will ask you to assign your data file a name. Transfer your data file into Kaleidagraph. To do this left click on the data file and drag it over the Kaleidagraph icon on the computer’s de ...
quiz
... A proton of mass mp and charge e is in a box that contains an electric field E, and the box is located in Earth’s magnetic field BEarth. The proton moves with an initial velocity v vertically upward from the surface of Earth. Assume gravity is negligible. (a) On the diagram above, indicate the direc ...
... A proton of mass mp and charge e is in a box that contains an electric field E, and the box is located in Earth’s magnetic field BEarth. The proton moves with an initial velocity v vertically upward from the surface of Earth. Assume gravity is negligible. (a) On the diagram above, indicate the direc ...
Lecture-11-10
... speed relative to the shore? Ignore friction between the log and the water. (b) If the mass of the log had been greater, would the lumberjack’s speed relative to the shore be greater than, less than, or the same as in part (a)? Explain. ...
... speed relative to the shore? Ignore friction between the log and the water. (b) If the mass of the log had been greater, would the lumberjack’s speed relative to the shore be greater than, less than, or the same as in part (a)? Explain. ...
Newton`s Second Law
... If you go to the moon, whose gravitational acceleration is about 1/6 g, you will weigh much less. Your mass, however, will be the same. Gravitational mass ...
... If you go to the moon, whose gravitational acceleration is about 1/6 g, you will weigh much less. Your mass, however, will be the same. Gravitational mass ...
Work Done
... asking for the Force out of the machine • And, “How far does the handle of the opener move?” is asking for the Distance in • If you get confused, remember a machine is used to lessen the force in, and it does this by trading distance for force. So the distance in will always be greater than distance ...
... asking for the Force out of the machine • And, “How far does the handle of the opener move?” is asking for the Distance in • If you get confused, remember a machine is used to lessen the force in, and it does this by trading distance for force. So the distance in will always be greater than distance ...
NCEA Level 3 Physics (91524) 2016 Assessment Schedule
... centre compared to the hollow cylinder. Hence it will have a smaller proportion of rotational kinetic energy and a larger proportion of linear kinetic energy. (Since they both have the same amount of gravitational potential energy), the one with the greater proportion of linear kinetic energy will r ...
... centre compared to the hollow cylinder. Hence it will have a smaller proportion of rotational kinetic energy and a larger proportion of linear kinetic energy. (Since they both have the same amount of gravitational potential energy), the one with the greater proportion of linear kinetic energy will r ...
Physics AP 1 - Fair Lawn Public Schools
... 2. Both direct and indirect relationships exist in nature. 3. There is a relationship between displacement, velocity, and acceleration. 4. The motion of objects can be described consistently using pictures, diagrams, mathematical expressions, and graphical representations. 5. In order to evaluate mo ...
... 2. Both direct and indirect relationships exist in nature. 3. There is a relationship between displacement, velocity, and acceleration. 4. The motion of objects can be described consistently using pictures, diagrams, mathematical expressions, and graphical representations. 5. In order to evaluate mo ...
chapter - 5 laws of motion
... Q.10. If the speed of stone is increased beyond the maximum permissible value and the string breaks suddenly, which of the following correctly describes the trajectory of the stone after the string breaks (i) the stone moves radially outwards, (ii) the stone flies off tangentially from the instant t ...
... Q.10. If the speed of stone is increased beyond the maximum permissible value and the string breaks suddenly, which of the following correctly describes the trajectory of the stone after the string breaks (i) the stone moves radially outwards, (ii) the stone flies off tangentially from the instant t ...
Lesson 10 notes - Angular Measurement - science
... The diagram shows a car of mass 850kg travelling on a level road in a clockwise direction at a steady speed of 20ms–1 round a bend with radius of curvature ...
... The diagram shows a car of mass 850kg travelling on a level road in a clockwise direction at a steady speed of 20ms–1 round a bend with radius of curvature ...
Mass versus weight
In everyday usage, the mass of an object is often referred to as its weight though these are in fact different concepts and quantities. In scientific contexts, mass refers loosely to the amount of ""matter"" in an object (though ""matter"" may be difficult to define), whereas weight refers to the force experienced by an object due to gravity. In other words, an object with a mass of 1.0 kilogram will weigh approximately 9.81 newtons (newton is the unit of force, while kilogram is the unit of mass) on the surface of the Earth (its mass multiplied by the gravitational field strength). Its weight will be less on Mars (where gravity is weaker), more on Saturn, and negligible in space when far from any significant source of gravity, but it will always have the same mass.Objects on the surface of the Earth have weight, although sometimes this weight is difficult to measure. An example is a small object floating in a pool of water (or even on a dish of water), which does not appear to have weight since it is buoyed by the water; but it is found to have its usual weight when it is added to water in a container which is entirely supported by and weighed on a scale. Thus, the ""weightless object"" floating in water actually transfers its weight to the bottom of the container (where the pressure increases). Similarly, a balloon has mass but may appear to have no weight or even negative weight, due to buoyancy in air. However the weight of the balloon and the gas inside it has merely been transferred to a large area of the Earth's surface, making the weight difficult to measure. The weight of a flying airplane is similarly distributed to the ground, but does not disappear. If the airplane is in level flight, the same weight-force is distributed to the surface of the Earth as when the plane was on the runway, but spread over a larger area.A better scientific definition of mass is its description as being composed of inertia, which basically is the resistance of an object being accelerated when acted on by an external force. Gravitational ""weight"" is the force created when a mass is acted upon by a gravitational field and the object is not allowed to free-fall, but is supported or retarded by a mechanical force, such as the surface of a planet. Such a force constitutes weight. This force can be added to by any other kind of force.For example, in the photograph, the girl's weight, subtracted from the tension in the chain (respectively the support force of the seat), yields the necessary centripetal force to keep her swinging in an arc. If one stands behind her at the bottom of her arc and abruptly stops her, the impetus (""bump"" or stopping-force) one experiences is due to acting against her inertia, and would be the same even if gravity were suddenly switched off.While the weight of an object varies in proportion to the strength of the gravitational field, its mass is constant (ignoring relativistic effects) as long as no energy or matter is added to the object. Accordingly, for an astronaut on a spacewalk in orbit (a free-fall), no effort is required to hold a communications satellite in front of him; it is ""weightless"". However, since objects in orbit retain their mass and inertia, an astronaut must exert ten times as much force to accelerate a 10‑ton satellite at the same rate as one with a mass of only 1 ton.On Earth, a swing set can demonstrate this relationship between force, mass, and acceleration. If one were to stand behind a large adult sitting stationary on a swing and give him a strong push, the adult would temporarily accelerate to a quite low speed, and then swing only a short distance before beginning to swing in the opposite direction. Applying the same impetus to a small child would produce a much greater speed.