Session Objectives
... Class Exercise - 3 Consider the two statements: (i) The negative of the work done by the conservative internal forces of a system is equal to the change in total energy. (ii) Work done by external forces on a system equals the change in total energy. (a) (i) and (ii) are correct (b) (i) is incorrec ...
... Class Exercise - 3 Consider the two statements: (i) The negative of the work done by the conservative internal forces of a system is equal to the change in total energy. (ii) Work done by external forces on a system equals the change in total energy. (a) (i) and (ii) are correct (b) (i) is incorrec ...
Jumping Jumping Energy and Work Work Energy Kinetic Energy
... Your arm can do work on a cricket ball and increase the ball’s KE. It travels some distance and then crashes into the stumps, doing work on them and losing a corresponding amount of KE. The ball transports energy in the form of KE from one place to another ...
... Your arm can do work on a cricket ball and increase the ball’s KE. It travels some distance and then crashes into the stumps, doing work on them and losing a corresponding amount of KE. The ball transports energy in the form of KE from one place to another ...
AP Physics 1 Quiz: Conservation of Energy Formulas
... Student A takes a slow, gradual path and reaches the top in 3 minutes. Student B takes a quick, steep path and reaches the top in 1 minute. Which of the following statements is FALSE about this scenario? a. Students A and B did the same amount of work b. Student A did 3 times as much work as Student ...
... Student A takes a slow, gradual path and reaches the top in 3 minutes. Student B takes a quick, steep path and reaches the top in 1 minute. Which of the following statements is FALSE about this scenario? a. Students A and B did the same amount of work b. Student A did 3 times as much work as Student ...
The Nature of Energy (cont.)
... The Nature of Energy (cont.) • Chemical potential energy is energy stored in a substance because of its composition. • Chemical potential energy is important in chemical reactions. • Heat is energy that is in the process of flowing from a warmer object to a cooler ...
... The Nature of Energy (cont.) • Chemical potential energy is energy stored in a substance because of its composition. • Chemical potential energy is important in chemical reactions. • Heat is energy that is in the process of flowing from a warmer object to a cooler ...
Chap8Class2
... 8-4 Problem Solving Using Conservation of Mechanical Energy Example 8-4: Roller-coaster car speed using energy conservation. Assuming the height of the hill is 40 m, and the roller-coaster car starts from rest at the top, calculate (a) the speed of the roller-coaster car at the bottom of the hill, ...
... 8-4 Problem Solving Using Conservation of Mechanical Energy Example 8-4: Roller-coaster car speed using energy conservation. Assuming the height of the hill is 40 m, and the roller-coaster car starts from rest at the top, calculate (a) the speed of the roller-coaster car at the bottom of the hill, ...
File
... Ex 3 A light is found to be 60% efficient. It is found that 45 000 J of luminous energy is produced, 28 600 J is lost as thermal energy and that some energy is lost due to a slight vibration. Find the amount of vibrational energy that is lost. ...
... Ex 3 A light is found to be 60% efficient. It is found that 45 000 J of luminous energy is produced, 28 600 J is lost as thermal energy and that some energy is lost due to a slight vibration. Find the amount of vibrational energy that is lost. ...
Mechanical Energy
... Conservative Force: A force such that the work done on an object by the force does not depend on the path taken, rather it depends only on the initial and final positions (gravitational, elastic, electric) Nonconservative Force: A force such that the work done on the object by the force does depend ...
... Conservative Force: A force such that the work done on an object by the force does not depend on the path taken, rather it depends only on the initial and final positions (gravitational, elastic, electric) Nonconservative Force: A force such that the work done on the object by the force does depend ...
Kinetic and Potential Energy
... Conservation of Energy Energy is neither created nor destroyed only changed from one form to another To problem solve using conservation of energy use Energy initial = Energy final *identify what type of energy is present initially *identify what type of energy is present at the end point ...
... Conservation of Energy Energy is neither created nor destroyed only changed from one form to another To problem solve using conservation of energy use Energy initial = Energy final *identify what type of energy is present initially *identify what type of energy is present at the end point ...
Fact Sheet: Mechanical Energy
... A roller coaster at the top of the track has the potential to go roaring down the tracks at a high speed. As an object’s kinetic energy increases, its potential energy decreases and viceversa. A swing, at its highest point, has the greatest potential energy, while its kinetic energy is at its lowest ...
... A roller coaster at the top of the track has the potential to go roaring down the tracks at a high speed. As an object’s kinetic energy increases, its potential energy decreases and viceversa. A swing, at its highest point, has the greatest potential energy, while its kinetic energy is at its lowest ...