Monday, February 11, 2013
... Aristotle (384-322BC): A natural state of a body is rest. Thus force is required to move an object. To move faster, ones needs larger forces. Galileo’s statement on natural states of matter: Any velocity once imparted to a moving body will be rigidly maintained as long as the external causes of reta ...
... Aristotle (384-322BC): A natural state of a body is rest. Thus force is required to move an object. To move faster, ones needs larger forces. Galileo’s statement on natural states of matter: Any velocity once imparted to a moving body will be rigidly maintained as long as the external causes of reta ...
Speed, Velocity, and Acceleration
... What is the speed of a sailboat that is traveling 120 meters in 60 seconds? Step 1: Decide what the problem is asking? A boat traveled 120 meters in 60 seconds. What was the speed of the boat? Step 2: What is the formula to calculate speed? Speed = Distance/Time Step 3: Solve the problem using the f ...
... What is the speed of a sailboat that is traveling 120 meters in 60 seconds? Step 1: Decide what the problem is asking? A boat traveled 120 meters in 60 seconds. What was the speed of the boat? Step 2: What is the formula to calculate speed? Speed = Distance/Time Step 3: Solve the problem using the f ...
Work and Kinetic Energy
... How much work does the spring do on the object as a function of x = l - l0, the distance the spring has been stretched or compressed? ...
... How much work does the spring do on the object as a function of x = l - l0, the distance the spring has been stretched or compressed? ...
5, 6, 10, 13, 14, 18, 23 / 5, 7, 16, 23, 31, 34, 39, 43, 45
... 14. REASONING AND SOLUTION When you are lying down with your hands behind your head, your moment of inertia I about your stomach is greater than it is when your hands are on your stomach. Sit-ups are then more difficult because, with a greater I, you must exert a greater torque about your stomach to ...
... 14. REASONING AND SOLUTION When you are lying down with your hands behind your head, your moment of inertia I about your stomach is greater than it is when your hands are on your stomach. Sit-ups are then more difficult because, with a greater I, you must exert a greater torque about your stomach to ...
Study Sheet for Chemistry and Physics Chemistry Atomic Structure
... Terminal Velocity – Speed of a falling object increases, so does air resistance. So air resistance pushes up while the object falls. When these 2 factors balance out – terminal velocity is reached. The object falling is now BALANCED! Free fall –ONLY possible in a vacuum! No forces can act on the obj ...
... Terminal Velocity – Speed of a falling object increases, so does air resistance. So air resistance pushes up while the object falls. When these 2 factors balance out – terminal velocity is reached. The object falling is now BALANCED! Free fall –ONLY possible in a vacuum! No forces can act on the obj ...
18-5
... method (recall that the principle of work and energy is also an energy method) for solving problems. Once again, the problem parameter of distance is a key indicator of when conservation of energy is a good method for solving the problem. ...
... method (recall that the principle of work and energy is also an energy method) for solving problems. Once again, the problem parameter of distance is a key indicator of when conservation of energy is a good method for solving the problem. ...
Chapter 7 Solutions
... IDENTIFY: Initially the ball has all kinetic energy, but at its highest point it has kinetic energy and potential energy. Since it is thrown upward at an angle, its kinetic energy is not zero at its highest point. SET UP: Apply conservation of energy: Kf Uf Ki Ui . Let yi 0, so yf h, the m ...
... IDENTIFY: Initially the ball has all kinetic energy, but at its highest point it has kinetic energy and potential energy. Since it is thrown upward at an angle, its kinetic energy is not zero at its highest point. SET UP: Apply conservation of energy: Kf Uf Ki Ui . Let yi 0, so yf h, the m ...
3 Conservation of Mechanical Energy II: Springs, Rotational Kinetic
... A common mistake involving springs is using the length of a stretched spring when the amount of stretch is called for. Given the length of a stretched spring, you have to subtract off the length of that same spring when it is neither stretched nor compressed to get the amount of stretch. Spring Pote ...
... A common mistake involving springs is using the length of a stretched spring when the amount of stretch is called for. Given the length of a stretched spring, you have to subtract off the length of that same spring when it is neither stretched nor compressed to get the amount of stretch. Spring Pote ...
Powerpoint Slides
... net external force, an object will keep moving at a constant speed in a straight line, or remain at rest. This is also known as the Law of Inertia. ...
... net external force, an object will keep moving at a constant speed in a straight line, or remain at rest. This is also known as the Law of Inertia. ...
Foundation of Newtonian Mechanics
... For a round object of radius R that is rotating at a constant angular velocity, one occasionally wants to know the position of a particular point on the object. Assuming that the horizontal axis is denoted as zero radians, it is obvious that the Cartesian coordinates of any given point are ...
... For a round object of radius R that is rotating at a constant angular velocity, one occasionally wants to know the position of a particular point on the object. Assuming that the horizontal axis is denoted as zero radians, it is obvious that the Cartesian coordinates of any given point are ...
B (2) - TSG@MIT Physics
... strong push and steps out of the way. The return swing of pendulum breaks the glass. B95 ...
... strong push and steps out of the way. The return swing of pendulum breaks the glass. B95 ...
AP B MC Midterm Answers 2004
... a) It is equal to h/2 b) It is equal to h/4 c) It is equal to h/2 d) It is equal to h e) It is between zero and h; height depends on how much energy is lost to friction. 34. A ball falls straight down through the air under the influence of gravity. There is a retarding force F on the ball with magn ...
... a) It is equal to h/2 b) It is equal to h/4 c) It is equal to h/2 d) It is equal to h e) It is between zero and h; height depends on how much energy is lost to friction. 34. A ball falls straight down through the air under the influence of gravity. There is a retarding force F on the ball with magn ...
Note that in the following three figures, which show
... We learned earlier that if an object is at rest, then the total of all the external forces acting on it must be zero. If we are also considering the possibility of rotational motion, we must add a second condition for a body at rest: The net torque of all the external forces acting on the body, wit ...
... We learned earlier that if an object is at rest, then the total of all the external forces acting on it must be zero. If we are also considering the possibility of rotational motion, we must add a second condition for a body at rest: The net torque of all the external forces acting on the body, wit ...
3.3 Projectile Motion
... Thus, in uniform circular motion there must be a net force to produce the centripetal acceleration. The centripetal force is the name given to the net force required to keep an object moving on a circular path. The direction of the centripetal force always points toward the center of the circle and ...
... Thus, in uniform circular motion there must be a net force to produce the centripetal acceleration. The centripetal force is the name given to the net force required to keep an object moving on a circular path. The direction of the centripetal force always points toward the center of the circle and ...
Advanced Placement Physics 1 - Spring Grove Area School District
... 1. Differentiate between a vector quantity and a scalar quantity, and state which quantities used in kinematics are vector quantities and which are scalar quantities. 2. Use a protractor and ruler to represent the magnitude and direction of a vector. 3. Multiply or divide a vector quantity by a scal ...
... 1. Differentiate between a vector quantity and a scalar quantity, and state which quantities used in kinematics are vector quantities and which are scalar quantities. 2. Use a protractor and ruler to represent the magnitude and direction of a vector. 3. Multiply or divide a vector quantity by a scal ...
Name Class Date Skills Worksheet Directed Reading B Section
... SECTION SUMMARY Read the following section summary. ...
... SECTION SUMMARY Read the following section summary. ...
Newton`s 1st Law of Motion
... motion if no outside forces act on them. So the Earth, and objects on the Earth (like a tree, a bird on the tree, a worm, and the air all around them) are ALL moving at 30 km/s. As a bird drops to the Earth, there are no sideways forces acting on it, so its sideways motion remains unchanged. It trav ...
... motion if no outside forces act on them. So the Earth, and objects on the Earth (like a tree, a bird on the tree, a worm, and the air all around them) are ALL moving at 30 km/s. As a bird drops to the Earth, there are no sideways forces acting on it, so its sideways motion remains unchanged. It trav ...
Hunting oscillation
Hunting oscillation is a self-oscillation, usually unwanted, about an equilibrium. The expression came into use in the 19th century and describes how a system ""hunts"" for equilibrium. The expression is used to describe phenomena in such diverse fields as electronics, aviation, biology, and railway engineering.