Work and Energy Review Multiple Choice Identify the letter of the
... 1. Work is a transfer of a. energy. c. mass. b. force. d. motion. 2. What is transferred by a force moving an object through a distance? a. force c. motion b. mass d. energy 3. The energy of motion is called a. kinetic energy. c. thermal energy. b. potential energy. d. work. 4. A small 30-kilogram c ...
... 1. Work is a transfer of a. energy. c. mass. b. force. d. motion. 2. What is transferred by a force moving an object through a distance? a. force c. motion b. mass d. energy 3. The energy of motion is called a. kinetic energy. c. thermal energy. b. potential energy. d. work. 4. A small 30-kilogram c ...
1-2 Conservation of Mechanical Energy I: Kinetic Energy
... which is an indicator of how much energy was transferred. Energy has units of joules, abbreviated J. Energy can’t be measured directly but when energy is transferred to or from an object, some measurable characteristic (or characteristics) of that object changes (change) such that, measured values o ...
... which is an indicator of how much energy was transferred. Energy has units of joules, abbreviated J. Energy can’t be measured directly but when energy is transferred to or from an object, some measurable characteristic (or characteristics) of that object changes (change) such that, measured values o ...
What is energy?
... • The total amount of kinetic energy and gravitational potential energy in a system is the mechanical energy of the system: mechanical energy = KE + GPE • The law of conservation of energy states that energy never can be created or destroyed. The total amount of energy in the universe is constant. ...
... • The total amount of kinetic energy and gravitational potential energy in a system is the mechanical energy of the system: mechanical energy = KE + GPE • The law of conservation of energy states that energy never can be created or destroyed. The total amount of energy in the universe is constant. ...
Energy:
... are referred to as ‘wasted’ or given off in the form of heat. Strategies to reduce this heat loss are intended to improve the efficiency of a device. Energy efficiency is a measure of how usefully energy is converted by a device. ...
... are referred to as ‘wasted’ or given off in the form of heat. Strategies to reduce this heat loss are intended to improve the efficiency of a device. Energy efficiency is a measure of how usefully energy is converted by a device. ...
Energy
... When an object or organism does work on another object or organism, some of the energy is transferred to the object or organism being acted on. ...
... When an object or organism does work on another object or organism, some of the energy is transferred to the object or organism being acted on. ...
Energy PPT
... We will use column graphs and arrows to track the flow of energy between objects. Here are the key concepts to follow: ¢ Identify the storage mechanism(s) in each object that gain and lose energy during the change. ¢ Identify the transfer mechanism(s) that transfer the energy between the objects ...
... We will use column graphs and arrows to track the flow of energy between objects. Here are the key concepts to follow: ¢ Identify the storage mechanism(s) in each object that gain and lose energy during the change. ¢ Identify the transfer mechanism(s) that transfer the energy between the objects ...
Potential energy - Peoria Public Schools
... has due to its position, condition, or chemical composition. ...
... has due to its position, condition, or chemical composition. ...
Forms of Energy Sources
... Energy travels throughout the universe at the speed of light in the form of electromagnetic radiation. What that radiation is called depends on its energy level. At the really high-energy end of the spectrum, you’ve got gamma rays. You’re probably familiar with a close cousin to these: X-rays. They’ ...
... Energy travels throughout the universe at the speed of light in the form of electromagnetic radiation. What that radiation is called depends on its energy level. At the really high-energy end of the spectrum, you’ve got gamma rays. You’re probably familiar with a close cousin to these: X-rays. They’ ...
6-5.2 - S2TEM Centers SC
... The water that runs over the dam might be used to power an electric generator and thus the mechanical energy associated with the water can be transformed into electrical energy. December 2010 ...
... The water that runs over the dam might be used to power an electric generator and thus the mechanical energy associated with the water can be transformed into electrical energy. December 2010 ...
Energy: Forms and Changes
... object that is not moving appears to have no energy because it is doing nothing. However, the object has “potential” energy. It can move, fall, be thrown, and so forth. For examples, a ball at rest on the top of a hill has the potential energy to roll down that hall. Potential energy is stored in ob ...
... object that is not moving appears to have no energy because it is doing nothing. However, the object has “potential” energy. It can move, fall, be thrown, and so forth. For examples, a ball at rest on the top of a hill has the potential energy to roll down that hall. Potential energy is stored in ob ...
about energy - Assam Valley School
... (e) Biogas does not cause any pollution while burning dry biomass causes a lot of air pollution. (f) Biogas consists of methane (65%), carbon dioxide, hydrogen and traces of hydrogen sulphide along with water vapour. 11. What is polluted air? (a) How is air polluted by the activities of man? (b) Nam ...
... (e) Biogas does not cause any pollution while burning dry biomass causes a lot of air pollution. (f) Biogas consists of methane (65%), carbon dioxide, hydrogen and traces of hydrogen sulphide along with water vapour. 11. What is polluted air? (a) How is air polluted by the activities of man? (b) Nam ...
FORCES - year13bio
... it takes her 20s how high did she climb if she is 40kg? 3. Sam lifts a book 2m into the air with a force of 3N. He does this in 3s. What was his power rating? 4. Alexandra runs up a hill with a power rating of 300W. If her mass is 60kg and she ran up the hill in 5s how high was the hill? ...
... it takes her 20s how high did she climb if she is 40kg? 3. Sam lifts a book 2m into the air with a force of 3N. He does this in 3s. What was his power rating? 4. Alexandra runs up a hill with a power rating of 300W. If her mass is 60kg and she ran up the hill in 5s how high was the hill? ...
STUDENT GUIDE
... Energy which states that energy can neither be created nor destroyecl, it just "chanÿJ f-ges form. Energy transformationÿiÿstems demÿ6nstrate the Law ...
... Energy which states that energy can neither be created nor destroyecl, it just "chanÿJ f-ges form. Energy transformationÿiÿstems demÿ6nstrate the Law ...
The Physical Science - Physics course consists of 52 lessons, which
... related to an object's position and give examples of gravitational and elastic potential energy; Give examples of the major forms of energy and explain how each is produced; Describe how the energy of a moving object is influenced by its mass Describe conversions of energy from one form to another ...
... related to an object's position and give examples of gravitational and elastic potential energy; Give examples of the major forms of energy and explain how each is produced; Describe how the energy of a moving object is influenced by its mass Describe conversions of energy from one form to another ...
Overview - RI
... energy increases and decreases, but the total energy (black line) stays constant. ...
... energy increases and decreases, but the total energy (black line) stays constant. ...
Energy exists in different forms.
... Suppose you are holding a soccer ball in your hands. Even if the ball is not moving, it has energy because it has the potential to fall. Potential energy is the stored energy that an object has due to its position or chemical composition. The ball’s position above the ground gives it potential energ ...
... Suppose you are holding a soccer ball in your hands. Even if the ball is not moving, it has energy because it has the potential to fall. Potential energy is the stored energy that an object has due to its position or chemical composition. The ball’s position above the ground gives it potential energ ...
Chapter 1, Activity 7 Handout on Scientists` Ideas
... temperature that occur as a result of contact interactions. He developed a simple apparatus that allowed him to measure the relationship between changes in motion energy and changes of the temperature of water that was stirred through a contact interaction. He found that the change in mechanical ene ...
... temperature that occur as a result of contact interactions. He developed a simple apparatus that allowed him to measure the relationship between changes in motion energy and changes of the temperature of water that was stirred through a contact interaction. He found that the change in mechanical ene ...
Energy: Forms and Changes
... deal of potential energy. From that point, the conversion between potential and kinetic energy powers the cars throughout the entire ride. ...
... deal of potential energy. From that point, the conversion between potential and kinetic energy powers the cars throughout the entire ride. ...
Energy - Science
... kinetic energy and maximum potential energy. • As the pendulum swings downward, potential energy is converted to kinetic energy. • At the bottom of the swing, the pendulum has maximum kinetic energy and zero potential energy. ...
... kinetic energy and maximum potential energy. • As the pendulum swings downward, potential energy is converted to kinetic energy. • At the bottom of the swing, the pendulum has maximum kinetic energy and zero potential energy. ...
Energy, Work, and Power
... Calculate the GPE a boy of mass 75kg gains if he climbs 50 steps, each step having a height of 20cm 2. A girl, mass 55kg, jumps off a bridge into the water below. The bridge is 2.5m above the water, Calculate the GPE the girl lost when she hits the water. ...
... Calculate the GPE a boy of mass 75kg gains if he climbs 50 steps, each step having a height of 20cm 2. A girl, mass 55kg, jumps off a bridge into the water below. The bridge is 2.5m above the water, Calculate the GPE the girl lost when she hits the water. ...
Energy
... Energy, Work, and Power •The ability to do work or cause change is called energy. •When an object or living thing does work on another object, some of its energy is transferred to that object. •You can think of work then, as the transfer of energy. •Power is the rate at which energy is transferred, ...
... Energy, Work, and Power •The ability to do work or cause change is called energy. •When an object or living thing does work on another object, some of its energy is transferred to that object. •You can think of work then, as the transfer of energy. •Power is the rate at which energy is transferred, ...
Energy
... Energy, Work, and Power •The ability to do work or cause change is called energy. •When an object or living thing does work on another object, some of its energy is transferred to that object. •You can think of work then, as the transfer of energy. •Power is the rate at which energy is transferred, ...
... Energy, Work, and Power •The ability to do work or cause change is called energy. •When an object or living thing does work on another object, some of its energy is transferred to that object. •You can think of work then, as the transfer of energy. •Power is the rate at which energy is transferred, ...
energy. A
... Lesson 1: Forms of Energy Lesson 2: Energy Transfer Lesson 3: Temperature, Thermal Energy, and Heat Lesson 4: Conduction, Convection, and Radiation ...
... Lesson 1: Forms of Energy Lesson 2: Energy Transfer Lesson 3: Temperature, Thermal Energy, and Heat Lesson 4: Conduction, Convection, and Radiation ...
Chemical Energy
... Parallel Circuits • Circuits in parallel don’t lose voltage through each component. • These bulbs will both be bright because they have their own separate current. ...
... Parallel Circuits • Circuits in parallel don’t lose voltage through each component. • These bulbs will both be bright because they have their own separate current. ...
Negawatt power
Negawatt power is a theoretical unit of power representing an amount of energy (measured in watts) saved. The energy saved is a direct result of energy conservation or increased energy efficiency. The term was coined by the chief scientist of the Rocky Mountain Institute and environmentalist Amory Lovins in 1989, arguing that utility customers don’t want kilowatt-hours of electricity; they want energy services such as hot showers, cold beer, lit rooms, and spinning shafts, which can come more cheaply if electricity is used more efficiently. Lovins felt an international behavioral change was necessary in order to decrease countries' dependence on excessive amounts of energy. The concept of a negawatt could influence a behavioral change in consumers by encouraging them to think about the energy that they spend.A negawatt market can be thought of as a secondary market, in which electricity is allocated from one consumer to another consumer within the energy market. In this market, negawatts could be treated as a commodity. Commodities have the ability to be traded across time and space, which would allow negawatts to be incorporated in the international trading system. Roughly 10% of all U.S. electrical generating capacity is in place to meet the last 1% of demand and there is where the immediate efficiency opportunity exists.On March 15, 2011, the Federal Energy Regulatory Commission (FERC), the agency that regulates the U.S. electrical grid, approved a rule establishing the approach to compensation for demand response resources intended to benefit customers and help improve the operation and competitiveness of organized wholesale energy markets. This means that negawatts produced by reducing electrical use can demand the same market prices as real megawatts of generated electricity.The incentives for a negawatt market include receiving money, reduction of national energy dependency, and the local electricity deregulation within certain nations or states. As for the cost incentive, those who produce negawatts or simply conserve energy can earn money by selling the saved energy. The negawatt market could help nations or states obtain a deregulated electricity system by creating another market to purchase electricity from. The negawatt market also has two main drawbacks. Currently, there is no way to precisely measure the amount of energy saved in negawatts, and electricity providers may not want customers to use less energy due to the loss of profit.