Introduction
... Step 1: Students are provided with a sheet of questions they are to anonymously respond to. Students write their answers on the sheet; they are not to discuss their answers with any other student, nor are they to write their name on the sheet. Step 2: Students are to separate each question, with its ...
... Step 1: Students are provided with a sheet of questions they are to anonymously respond to. Students write their answers on the sheet; they are not to discuss their answers with any other student, nor are they to write their name on the sheet. Step 2: Students are to separate each question, with its ...
Relationship Between Impulse and Momentum - McGraw
... Newton combined an object's mass and velocity in an expression which he called “quantity of motion.” We now define this product of mass and velocity as momentum. From Newton's second law we see that an object's velocity changes when it is acted upon by an unbalanced force. This would also mean then ...
... Newton combined an object's mass and velocity in an expression which he called “quantity of motion.” We now define this product of mass and velocity as momentum. From Newton's second law we see that an object's velocity changes when it is acted upon by an unbalanced force. This would also mean then ...
Polygon of Forces
... of Equilibrium. Equilibrium exists when all the forces on a particle are in balance. The velocity of a particle does not change, if the particle is in Equilibrium. Interpretations of the First Law i) A body is in Equilibrium if it moves with constant velocity. A body at rest is a special case of con ...
... of Equilibrium. Equilibrium exists when all the forces on a particle are in balance. The velocity of a particle does not change, if the particle is in Equilibrium. Interpretations of the First Law i) A body is in Equilibrium if it moves with constant velocity. A body at rest is a special case of con ...
Momentum in Collisions - Daytona State College
... and faster speed, it gains more energy and must be met with a larger force to bring it to rest. Not surprisingly, the momentum can be calculated by multiplying the mass of the object times its velocity (p = m v). Therefore a car moving at 70 mph will have less momentum than a truck moving at the sam ...
... and faster speed, it gains more energy and must be met with a larger force to bring it to rest. Not surprisingly, the momentum can be calculated by multiplying the mass of the object times its velocity (p = m v). Therefore a car moving at 70 mph will have less momentum than a truck moving at the sam ...
AP B Physics Chapter 18 Electrostatics #2
... of touching one ball to another and then separating the two balls can be repeated over and over again, with the result that the three balls can take on a variety of charges. Which one of the following distribution of charges could not possibly be achieved in this fashion? ...
... of touching one ball to another and then separating the two balls can be repeated over and over again, with the result that the three balls can take on a variety of charges. Which one of the following distribution of charges could not possibly be achieved in this fashion? ...
Finding Torque (ABOUT ?)
... Torque equation, T = I . About? Ex. TC.M. = IC.M. It is NOT a general equation. It’s validity 1. In general, Torque equation can be applied only about a) C.M, b) About a fixed Point. A fixed point is i) Either permanently fixed or ii) if the body is rotating without slipping, then instantaneous ...
... Torque equation, T = I . About? Ex. TC.M. = IC.M. It is NOT a general equation. It’s validity 1. In general, Torque equation can be applied only about a) C.M, b) About a fixed Point. A fixed point is i) Either permanently fixed or ii) if the body is rotating without slipping, then instantaneous ...
Weightlessness
Weightlessness, or an absence of 'weight', is an absence of stress and strain resulting from externally applied mechanical contact-forces, typically normal forces from floors, seats, beds, scales, and the like. Counterintuitively, a uniform gravitational field does not by itself cause stress or strain, and a body in free fall in such an environment experiences no g-force acceleration and feels weightless. This is also termed ""zero-g"" where the term is more correctly understood as meaning ""zero g-force.""When bodies are acted upon by non-gravitational forces, as in a centrifuge, a rotating space station, or within a space ship with rockets firing, a sensation of weight is produced, as the contact forces from the moving structure act to overcome the body's inertia. In such cases, a sensation of weight, in the sense of a state of stress can occur, even if the gravitational field was zero. In such cases, g-forces are felt, and bodies are not weightless.When the gravitational field is non-uniform, a body in free fall suffers tidal effects and is not stress-free. Near a black hole, such tidal effects can be very strong. In the case of the Earth, the effects are minor, especially on objects of relatively small dimension (such as the human body or a spacecraft) and the overall sensation of weightlessness in these cases is preserved. This condition is known as microgravity and it prevails in orbiting spacecraft.