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Flashcards on Work, Energy, and Power
Click on the flashcard to see the answer
What is work?
Work is the transfer of energy that occurs when an object is moved by a force applied in the direction of motion.
What is the formula for work?
Work = Force x Distance x cos(theta)
What are the units of work?
The units of work are joules (J).
Define energy.
Energy is the capacity to do work.
What are the different forms of energy?
Some forms of energy include kinetic, potential, thermal, chemical, electrical, and nuclear energy.
What is the law of conservation of energy?
The law of conservation of energy states that energy cannot be created or destroyed, only transferred or converted from one form to another.
What is power?
Power is the rate at which work is done or energy is transferred.
What is the formula for power?
Power = Work / Time
What are the units of power?
The units of power are watts (W).
What is the relationship between work and energy?
Work is the transfer of energy, so when work is done on an object, its energy changes.
What is the relationship between power and time?
Power is defined as the rate at which work is done or energy is transferred, so power is directly proportional to time.
What is the formula for gravitational potential energy?
Gravitational Potential Energy = mgh
What is the formula for kinetic energy?
Kinetic Energy = (1/2)mv^2
What is the formula for mechanical energy?
Mechanical Energy = Potential Energy + Kinetic Energy
What is the relationship between work and power?
Power is the rate at which work is done, so the more work done in a given time, the greater the power.
What are some examples of power in everyday life?
Some examples of power in everyday life include using electrical appliances, driving a car, and using a computer.
What is work?
Work is the transfer of energy that occurs when an object is moved by a force applied in the direction of motion.
What is the formula for work?
Work = Force x Distance x cos(theta)
What are the units of work?
The units of work are joules (J).
Define energy.
Energy is the capacity to do work.
What are the different forms of energy?
Some forms of energy include kinetic, potential, thermal, chemical, electrical, and nuclear energy.
What is the law of conservation of energy?
The law of conservation of energy states that energy cannot be created or destroyed, only transferred or converted from one form to another.
What is power?
Power is the rate at which work is done or energy is transferred.
What is the formula for power?
Power = Work / Time
What are the units of power?
The units of power are watts (W).
What is the relationship between work and energy?
Work is the transfer of energy, so when work is done on an object, its energy changes.
What is the relationship between power and time?
Power is defined as the rate at which work is done or energy is transferred, so power is directly proportional to time.
What is the formula for gravitational potential energy?
Gravitational Potential Energy = mgh
What is the formula for kinetic energy?
Kinetic Energy = (1/2)mv^2
What is the formula for mechanical energy?
Mechanical Energy = Potential Energy + Kinetic Energy
What is the relationship between work and power?
Power is the rate at which work is done, so the more work done in a given time, the greater the power.
What are some examples of power in everyday life?
Some examples of power in everyday life include using electrical appliances, driving a car, and using a computer.
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