Is it possible to do work on an object that remains at rest?
... Gravitational PE is mgh, where height h is measured relative to some arbitrary reference level where PE = 0. For example, a book on a table has positive PE if the zero reference level is chosen to be the floor. However, if the ceiling is the zero level, then the book has negative PE on the table. It ...
... Gravitational PE is mgh, where height h is measured relative to some arbitrary reference level where PE = 0. For example, a book on a table has positive PE if the zero reference level is chosen to be the floor. However, if the ceiling is the zero level, then the book has negative PE on the table. It ...
6 Newton`s Second Law of Motion–Force and
... 6.1 Force Causes Acceleration Recall from the previous chapter that the combination of forces acting on an object is the net force. • Acceleration depends on the net force. • To increase the acceleration of an object, you must increase the net force acting on it. • An object’s acceleration is direct ...
... 6.1 Force Causes Acceleration Recall from the previous chapter that the combination of forces acting on an object is the net force. • Acceleration depends on the net force. • To increase the acceleration of an object, you must increase the net force acting on it. • An object’s acceleration is direct ...
Unit III: Worksheet 1a
... or a pull) on a door to open it. Gravity exerts a force on you (a pull) which holds you to the surface of the earth. Friction with the surface of a hill exerts a force on your car that keeps it from sliding when parked. Note that in every situation, forces are an interaction between two objects--you ...
... or a pull) on a door to open it. Gravity exerts a force on you (a pull) which holds you to the surface of the earth. Friction with the surface of a hill exerts a force on your car that keeps it from sliding when parked. Note that in every situation, forces are an interaction between two objects--you ...
AS90183_NBC_1a
... • Momentum is a quantity you may have heard of and even have a basic understanding of. • It is related to the velocity and size of an object. • Small objects will require a lot of velocity to have a lot of momentum and thus be difficult to stop. • Large objects even at slow velocities can be hard to ...
... • Momentum is a quantity you may have heard of and even have a basic understanding of. • It is related to the velocity and size of an object. • Small objects will require a lot of velocity to have a lot of momentum and thus be difficult to stop. • Large objects even at slow velocities can be hard to ...
electric potential energy
... 1) The electric force is directed to bring the electron closer to the proton. 2) Since the electron ends up further from the proton the electric field did negative work. 3) So the electric potential energy increased ...
... 1) The electric force is directed to bring the electron closer to the proton. 2) Since the electron ends up further from the proton the electric field did negative work. 3) So the electric potential energy increased ...
exercise 10
... b. Which of the objects mentioned is a planet? c. Which of the objects mentioned is a star? 4. Scientists searching for exoplanets use the Astronomical Unit. 1 A.U. is the distance from the Sun to Earth. The “Habitable Zone” is the range of distances from a star which could be suitable for a planet ...
... b. Which of the objects mentioned is a planet? c. Which of the objects mentioned is a star? 4. Scientists searching for exoplanets use the Astronomical Unit. 1 A.U. is the distance from the Sun to Earth. The “Habitable Zone” is the range of distances from a star which could be suitable for a planet ...
Collision Prob PPT from class
... 4. Two objects having the same mass travel toward each other on a flat surface, each with a speed of 1.0 meter per second relative to the surface. The objects collide head-on and are reported to rebound after the collision, each with a speed of 2.0 meters per second relative to the surface. Which o ...
... 4. Two objects having the same mass travel toward each other on a flat surface, each with a speed of 1.0 meter per second relative to the surface. The objects collide head-on and are reported to rebound after the collision, each with a speed of 2.0 meters per second relative to the surface. Which o ...
Teacher Toolkit - Newton`s First Law of Motion
... 2. Physlet Physics: Circular Motion and Inertia http://webphysics.davidson.edu/physletprob/ch7_in_class/in_class7_1/mechanics7_1_2.html Good warm-up to spark discussion about uniform circular motion and the Law of Inertia. 3. UCLA Demoweb: Partial Pie Plate http://www.physics.ucla.edu/demoweb/demoma ...
... 2. Physlet Physics: Circular Motion and Inertia http://webphysics.davidson.edu/physletprob/ch7_in_class/in_class7_1/mechanics7_1_2.html Good warm-up to spark discussion about uniform circular motion and the Law of Inertia. 3. UCLA Demoweb: Partial Pie Plate http://www.physics.ucla.edu/demoweb/demoma ...
rotational inertia
... • To determine exactly where it lies, we have to suspend the object from some other point and draw a vertical line from that point of suspension. • Where the two lines intersect is the center of gravity. ...
... • To determine exactly where it lies, we have to suspend the object from some other point and draw a vertical line from that point of suspension. • Where the two lines intersect is the center of gravity. ...
Derivation Applications of Bernoulli Principal
... Lesson Opener: How does a plane fly? How does a perfume spray work? Why does a cricket ball curve? ...
... Lesson Opener: How does a plane fly? How does a perfume spray work? Why does a cricket ball curve? ...
Gravity
... In the above equations, vs is the average velocity of the object, vf is the final velocity of the object when it reaches the distance ∆x, and a is the acceleration of the object. (The symbol ∆ is used to represent “change in”, so ∆t means “change in t”, where t is time.) So far we have not addressed ...
... In the above equations, vs is the average velocity of the object, vf is the final velocity of the object when it reaches the distance ∆x, and a is the acceleration of the object. (The symbol ∆ is used to represent “change in”, so ∆t means “change in t”, where t is time.) So far we have not addressed ...
Classical central-force problem
In classical mechanics, the central-force problem is to determine the motion of a particle under the influence of a single central force. A central force is a force that points from the particle directly towards (or directly away from) a fixed point in space, the center, and whose magnitude only depends on the distance of the object to the center. In many important cases, the problem can be solved analytically, i.e., in terms of well-studied functions such as trigonometric functions.The solution of this problem is important to classical physics, since many naturally occurring forces are central. Examples include gravity and electromagnetism as described by Newton's law of universal gravitation and Coulomb's law, respectively. The problem is also important because some more complicated problems in classical physics (such as the two-body problem with forces along the line connecting the two bodies) can be reduced to a central-force problem. Finally, the solution to the central-force problem often makes a good initial approximation of the true motion, as in calculating the motion of the planets in the Solar System.