Conservation of Energy
Forms of Energy
Thermodynamics
Word Problems
Thermal Energy
100
the sum of the kinetic energy and potential energy in a system
What is mechanical energy?
100
Gravitational Potential Energy
What is stored energy and PE=mgh?
100
thermodynamics
What is the study of heat?
100
Liquid nitrogen boils at 77K. Find this temperature in degrees Celsius.
What is 196 degrees celsius?
100
......is proportional to the kinetic energy of atoms and molecules
What is temperature?
200
at any point in an object's motion, the sum of KE and PE is constant
What is conservation of energy?
200
the energy of movement (KE=1/2mv2)
What is kinetic energy?
200
theoretical coldest possible temperature
What is absolute zero?
200
A 6.4 kg bowling ball is stored on top of a shelf 2.1 m high. Find the graviatational potential energy of the bowling ball.
What is 131.75J?
200
Heat flow occurs between two bodies in thermal contact when they differ in _________
What is temperature?
300
A collision occurs and the kinetic energy stays the same
What is elastic collision?
300
energy stored in stretchy things (springs, rubberbands, slingshots)
What is elastic potential energy?
300
the disorder of a system
What is entropy?
300
A 2.5 kg ball is rolled on the ground with a speed of 5 m/s. Calculate the kinetic energy.
What is 31.25J?
300
the state where the rate of energy transfer between bodies becomes equal and the bodies will be at the same temperature
What is thermal equilibrium?
400
A collision occurs and the kinetic energy decreases?
What is inelastic collision?
400
kinetic energy involves motion and potential energy involves _______
What is position?
400
sunlight is an example of what?
What is radiation?
400
Calculate the heat that is needed to raise the temperature .005 kg of water from 277.5k to 356K. (C=4180 J/kg*k)
What is 1640.65J?
400
J/kg*K
What is the unit for specific heat?
500
As kinetic energy decreases, potential energy will
What is increase?
500
Gasoline has what form of potential energy
What is chemical potential energy?
500
the amount of energy it takes to heat 1 kg of substance by 1K
What is specific heat?
500
A 0.550 kg of metal absorbs 5016 J of heat when its temperature changes from 293K to 303K. Calculate the specific heat of the metal.
What is 912 J/kg*K?
500
amount of energy needed to melt on kilogram of a substance(solid to liquid)
What is heat of fusion?
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