7.1 Work and Energy
... Unit: N m or J 1 J of work is done when a force of 1 N moves a distance of 1 m in the direction of the force. ...
... Unit: N m or J 1 J of work is done when a force of 1 N moves a distance of 1 m in the direction of the force. ...
Chapter 2: Energy, Energy Transfer, and General Energy Analysis
... We will soon learn how to apply the first law of thermodynamics as the expression of the conservation of energy principle. But, first we study the ways in which energy may be transported across the boundary of a general thermodynamic system. For closed systems (fixed mass systems) energy can cross ...
... We will soon learn how to apply the first law of thermodynamics as the expression of the conservation of energy principle. But, first we study the ways in which energy may be transported across the boundary of a general thermodynamic system. For closed systems (fixed mass systems) energy can cross ...
Work, Power & Energy
... Strain Energy When a fiberglass vaulting pole bends, strain energy is stored in the bent pole When a tendon/ligament/muscle is stretched, strain energy is stored in the elongated ...
... Strain Energy When a fiberglass vaulting pole bends, strain energy is stored in the bent pole When a tendon/ligament/muscle is stretched, strain energy is stored in the elongated ...
Conservation of Energy
... • Elastic Potential Energy is the energy stored in a spring or other elastic material. • Hooke’s Law: The displacement of a spring from its unstretched position is proportional the force applied. • Conservation of energy: Energy can be converted from one form to another, but it is always conserved. ...
... • Elastic Potential Energy is the energy stored in a spring or other elastic material. • Hooke’s Law: The displacement of a spring from its unstretched position is proportional the force applied. • Conservation of energy: Energy can be converted from one form to another, but it is always conserved. ...
Work, Energy and Power
... Consider the case of a box on the back of a pickup truck. If the box moves along with the truck, then it is actually the force of friction that is making the box move. ...
... Consider the case of a box on the back of a pickup truck. If the box moves along with the truck, then it is actually the force of friction that is making the box move. ...
Chapter-6 Work and Energy
... the kinetic energy of physical activities and into the thermal energy needed to keep our bodies at a temperature near 98.6 °F. ...
... the kinetic energy of physical activities and into the thermal energy needed to keep our bodies at a temperature near 98.6 °F. ...
Chapter 11 Questions/STUDY GUIDE
... straight up in the air while driving in a convertible. What will happen to the bottle if there is air resistance? What will happen to the bottle if there is NO air resistance? 33. WITH air resistance and friction, what will happen to a ball rolled down a long ...
... straight up in the air while driving in a convertible. What will happen to the bottle if there is air resistance? What will happen to the bottle if there is NO air resistance? 33. WITH air resistance and friction, what will happen to a ball rolled down a long ...
N1 - Florida International University
... the energy stored as gravitational potential energy increases: W = ∆Eg. No other energies are involved. The amount of energy gained is only a function of the net change in position (displacement). No matter how many times one moves the object up or down, the net increase (or decrease) in Eg depends ...
... the energy stored as gravitational potential energy increases: W = ∆Eg. No other energies are involved. The amount of energy gained is only a function of the net change in position (displacement). No matter how many times one moves the object up or down, the net increase (or decrease) in Eg depends ...
Simple Harmonic Motion
... mechanical energy of a harmonic oscillator at a particular point in its motion is true? a) The mechanical energy depends on the acceleration at that point. b) The mechanical energy depends on the velocity at that point. c) The mechanical energy depends on the position of that point. d) The mechanica ...
... mechanical energy of a harmonic oscillator at a particular point in its motion is true? a) The mechanical energy depends on the acceleration at that point. b) The mechanical energy depends on the velocity at that point. c) The mechanical energy depends on the position of that point. d) The mechanica ...
Energy and Forces - No Brain Too Small
... Forces are essentially pushes or pulls. A force (measured in Newtons or N) always has a direction in which it acts. Forces can not be seen. We use arrows to show the direction in which the force is acting. You can measure force with a Newton meter (sometimes called a spring balance). Forces can chan ...
... Forces are essentially pushes or pulls. A force (measured in Newtons or N) always has a direction in which it acts. Forces can not be seen. We use arrows to show the direction in which the force is acting. You can measure force with a Newton meter (sometimes called a spring balance). Forces can chan ...
Lecture19
... exhausts heat into a large heat exchanger that stays close to the temperature of the atmosphere. The engine should be more efficient on a very cold day than on a warm day. ...
... exhausts heat into a large heat exchanger that stays close to the temperature of the atmosphere. The engine should be more efficient on a very cold day than on a warm day. ...
Conservation - mackenziekim
... spring is cut exactly in half and the two pieces are used to support the same bar, as shown in B. If the whole spring stretched by 4 cm in A, by how much would each half spring stretch in B? (SIN '69) (1 cm) ...
... spring is cut exactly in half and the two pieces are used to support the same bar, as shown in B. If the whole spring stretched by 4 cm in A, by how much would each half spring stretch in B? (SIN '69) (1 cm) ...
Example 12-4 SHM III: Kinetic and Potential Energy
... The result for part (b) would have been very difficult to find without using the energy approach. You would have needed to use the equations from Section 12-3 to solve for the time t at which the block passes through x = 21.0 * 1022 m, then use this value of t to find the velocity of the block at th ...
... The result for part (b) would have been very difficult to find without using the energy approach. You would have needed to use the equations from Section 12-3 to solve for the time t at which the block passes through x = 21.0 * 1022 m, then use this value of t to find the velocity of the block at th ...
Work and power notes
... 4.14 describe power as the rate of transfer of energy or the rate of doing work If two children who have the same mass climb the same hill then they do the same amount of work. But what if child one climbs the hill in a shorter time? We say that child one is more powerful. It is interesting to know ...
... 4.14 describe power as the rate of transfer of energy or the rate of doing work If two children who have the same mass climb the same hill then they do the same amount of work. But what if child one climbs the hill in a shorter time? We say that child one is more powerful. It is interesting to know ...
Grade 11 IB DP Physics Mock Exam – Chapters 1.1 – 4.1
... The specific heat capacity of a metal block of mass m is determined by placing a heating coil in its centre, as shown in the diagram above. The block is heated for time t and the maximum temperature change recorded is Δθ. The ammeter and voltmeter readings during the heating are I and V respectively ...
... The specific heat capacity of a metal block of mass m is determined by placing a heating coil in its centre, as shown in the diagram above. The block is heated for time t and the maximum temperature change recorded is Δθ. The ammeter and voltmeter readings during the heating are I and V respectively ...
Conservation of Energy Worksheet
... Conservation of Energy Purpose: define energy identify forms of energy recognize energy cannot be created or destroyed know that the total energy of a closed system cannot change if work is done the energy of the object can change ...
... Conservation of Energy Purpose: define energy identify forms of energy recognize energy cannot be created or destroyed know that the total energy of a closed system cannot change if work is done the energy of the object can change ...
The Law of Conservation of Energy
... 1.) A 74 kg student, starting from rest, slides down an 11.8 meter high water slide. How much kinetic energy does the student have at the bottom of the slide? ...
... 1.) A 74 kg student, starting from rest, slides down an 11.8 meter high water slide. How much kinetic energy does the student have at the bottom of the slide? ...
Chapter 6 Work and Energy
... The concept of forces acting on a mass (one object) is intimately related to the concept of ENERGY production or storage. • A mass accelerated to a non-zero speed carries energy (mechanical) • A mass raised up carries energy (gravitational) • The mass of an atom in a molecule carries energy (chemica ...
... The concept of forces acting on a mass (one object) is intimately related to the concept of ENERGY production or storage. • A mass accelerated to a non-zero speed carries energy (mechanical) • A mass raised up carries energy (gravitational) • The mass of an atom in a molecule carries energy (chemica ...
Equilibrium and Kinetics
... 9. The half-life of a first order reaction is 24 days. (i) Calculate the rate constant for the reaction (ii) The time taken for 75% of the reactant to decay. 10. Derive an expression for the variation of reactant concentration with respect to time for a reaction which exhibits zero order kinetics. H ...
... 9. The half-life of a first order reaction is 24 days. (i) Calculate the rate constant for the reaction (ii) The time taken for 75% of the reactant to decay. 10. Derive an expression for the variation of reactant concentration with respect to time for a reaction which exhibits zero order kinetics. H ...