CH 3—Forces
... pulled downward by the force of gravity. Another force, called air resistance, acts in the upward direction on all falling objects. • The amount of air resistance depends on the speed, size, and shape of the object. ...
... pulled downward by the force of gravity. Another force, called air resistance, acts in the upward direction on all falling objects. • The amount of air resistance depends on the speed, size, and shape of the object. ...
Document
... • We have defined the newton (N) so that ∑F = ∆p/∆t • Since p = mv, ∑F = ∆mv/∆t we have two cases (a) m constant: ∑F = m∆v/∆t = ma (b) v constant: ∑F = v∆m/∆t ...
... • We have defined the newton (N) so that ∑F = ∆p/∆t • Since p = mv, ∑F = ∆mv/∆t we have two cases (a) m constant: ∑F = m∆v/∆t = ma (b) v constant: ∑F = v∆m/∆t ...
22Sept_2014
... • Mass is described by the amount of matter an object contains. • This is different from weight – weight requires gravity or some other force to exist! • Ex: while swimming, your weight may feel less because the body floats a little. Your mass, however, stays the same! • Inertia is simply the tenden ...
... • Mass is described by the amount of matter an object contains. • This is different from weight – weight requires gravity or some other force to exist! • Ex: while swimming, your weight may feel less because the body floats a little. Your mass, however, stays the same! • Inertia is simply the tenden ...
Force and motion 1
... * know some different types of forces * know and be able to apply Newton’s second law to simple examples of objects moving in a straight line * understands the idea of equilibrium. ...
... * know some different types of forces * know and be able to apply Newton’s second law to simple examples of objects moving in a straight line * understands the idea of equilibrium. ...
Lab 7: Ballistic pendulum and the conservation of energy
... Lab 7: Conservation of energy demonstrated by the ballistic pendulum? Objectives: • Setting up familiar and new lab equipment on a new system • Determining the presence or absence of significant non-conservative forces • Calculating the change in energy of system in two different ways Introduction: ...
... Lab 7: Conservation of energy demonstrated by the ballistic pendulum? Objectives: • Setting up familiar and new lab equipment on a new system • Determining the presence or absence of significant non-conservative forces • Calculating the change in energy of system in two different ways Introduction: ...
Document
... If a force F is applied to an object of mass m it can accelerate it and increase its speed v and kinetic energy K. Similarly F can decelerate m and decrease its kinetic energy. We account for these changes in K by saying that F has transferred energy W to or from the object. If energy it transferred ...
... If a force F is applied to an object of mass m it can accelerate it and increase its speed v and kinetic energy K. Similarly F can decelerate m and decrease its kinetic energy. We account for these changes in K by saying that F has transferred energy W to or from the object. If energy it transferred ...
Elastic Potential Energy
... of mass m1 having initial velocity (vix)1, with a ball of mass m2 that is initially at rest. The balls’ velocities after the collision are (vfx)1 and (vfx)2.These are velocities, not speeds, and have signs. Ball 1, in particular, might bounce backward and have a negative value for (vfx)1. ...
... of mass m1 having initial velocity (vix)1, with a ball of mass m2 that is initially at rest. The balls’ velocities after the collision are (vfx)1 and (vfx)2.These are velocities, not speeds, and have signs. Ball 1, in particular, might bounce backward and have a negative value for (vfx)1. ...
Slide 1
... Momentum problems can become more complicated, however. Momentum problems can be in two and three dimensions. Under these conditions, say in a two dimensional problem, one would state a momentum using language such as “3.0 kg m/s in a direction of 50 degrees North of West.” ...
... Momentum problems can become more complicated, however. Momentum problems can be in two and three dimensions. Under these conditions, say in a two dimensional problem, one would state a momentum using language such as “3.0 kg m/s in a direction of 50 degrees North of West.” ...
Momentum PPT
... Momentum problems can become more complicated, however. Momentum problems can be in two and three dimensions. Under these conditions, say in a two dimensional problem, one would state a momentum using language such as “3.0 kg m/s in a direction of 50 degrees North of West.” ...
... Momentum problems can become more complicated, however. Momentum problems can be in two and three dimensions. Under these conditions, say in a two dimensional problem, one would state a momentum using language such as “3.0 kg m/s in a direction of 50 degrees North of West.” ...
4.1 Force
... • Relationship between force and motion? • Aristotle (384-322 B.C.) believed that a force was necessary to maintain a body in constant motion on a horizontal surface. Aristotle maintained that the greater the speed the greater the required force • Galileo, in about 1630, about 2000 years later, disp ...
... • Relationship between force and motion? • Aristotle (384-322 B.C.) believed that a force was necessary to maintain a body in constant motion on a horizontal surface. Aristotle maintained that the greater the speed the greater the required force • Galileo, in about 1630, about 2000 years later, disp ...
Unit 2 - College Guild
... the air. Relative to the earth (the floor), that object has a given gravitational potential energy, which depends in part on the height of your hand above the floor and the object’s mass. If you drop the object, its height is decreasing as it falls; therefore, so is its gravitational potential energ ...
... the air. Relative to the earth (the floor), that object has a given gravitational potential energy, which depends in part on the height of your hand above the floor and the object’s mass. If you drop the object, its height is decreasing as it falls; therefore, so is its gravitational potential energ ...
Dimensions, Quantities and Units
... Work and energy are interchangeable quantities; work may be thought of as energy in transition. Thus, for example, in an internal combustion engine chemical energy in the fuel is changed into thermal energy which in turn produces expansion in a gas and then motion, first of a piston within a cylinde ...
... Work and energy are interchangeable quantities; work may be thought of as energy in transition. Thus, for example, in an internal combustion engine chemical energy in the fuel is changed into thermal energy which in turn produces expansion in a gas and then motion, first of a piston within a cylinde ...
The Equipartition Theorem
... 8.3 Degrees of Freedom and the Equipartition Theorem Notice an important aspect of this calculation. We have associated the mean energy 12 kT with each of the squared terms in the expression for the mean energy of the oscillator, 12 mvx2 and 12 αx2 . This is part of a more general way of looking at ...
... 8.3 Degrees of Freedom and the Equipartition Theorem Notice an important aspect of this calculation. We have associated the mean energy 12 kT with each of the squared terms in the expression for the mean energy of the oscillator, 12 mvx2 and 12 αx2 . This is part of a more general way of looking at ...