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50 Cards in this Set
- Front
- Back
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What does W mean?
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work
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What does F mean?
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force
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What does D mean?
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displacement
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What is unit that is used for energy?
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joules
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What is the mathematical equation that is used for worK?
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W = f x d
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What is the equation for kinetic energy?
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Ek = 1/2·m·v²
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What is M?
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mass
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What is G?
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gravity
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The unit for potential energy is?
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PE = m·g·h
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Can a rocket accelerate through space?
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yes
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What is J?
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joule
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What is V?
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velocity/speed
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What is kinetic energy?
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energy of motion
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What is potential energy?
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energy potentially in motion
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What is the scientic unit used to express work?
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J = K·g·x·m²/s²
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What is work?
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energy
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When energy doubles, what does mass do?
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it doubles
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Kinetic energy is?
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scalar quantity
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A boot falls off a table and free falss to the ground. Tis is an example of what?
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work by gravity
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A form of energy that is related to motion or position is?
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mechanical energy
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calorie
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SI metric unit of energy
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A form of energy that is stored in the nuclei of atoms is?
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nuclear energy
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Pressure energy is like what other energy?
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steam energy
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What is pressure energy's unit?
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joules
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What is thermal energy?
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energy due to temperature
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What is kinetic energy?
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energy in motion
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What is the equation for kinetic energy?
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Ek = 1/2·m·v²
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What unit do we use for kinetic energy?
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J
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What does M represent?
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mass of an object
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What does V represent?
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speed of an object
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What happens to the amount of energy when we double the speed of an object?
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it doubles
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What happens to energy when you double the amount of mass?
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it quadruples
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What happens to the amount of mass when we cut in 1/2 the speed of an object?
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it's divided by 2 or goes down
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What is worK?
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a form of energy that comes from force applied over distance
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What is potential energy?
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it is stored energy that comes from position
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What is G?
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gravity
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What is H?
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height
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What is the mass of a zombie's head?
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M = 5
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How high is the zombie's head?
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h = 10
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What is the general definition of work?
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anything that involves energy
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What is work by gravity?
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mass → gravity
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Does a rocket accelerate through space?
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yes
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What is the mathematical equation used to express work?
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w = f · d
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What does W represent in an equation?
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work
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What does F represent in an equation?
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force
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What does d represent in an equation?
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displacement
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What is the unit used to describe work?
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joules
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What is the unit used to describe energy?
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joules
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What does V represent?
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speed
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A car was traveling at 60 mph, what would be the kenetic energy of the car if it had 1/2 that speed?
Ek = 1/2·m·v² |
Ek = 1/2·m·v²
Ek = 1/2·100 · {(30)²/900} = 4,900,000̲joules |
