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In the Equation for Thermal Energy, What does 'C' stand for
Specific Heat
If the particles in a cup of water are moving really fast, what can we assume about the temperature of the water?
Its hot
What is the SI units for KE, PE, Thermal energy, and Work?
Joule (J)
Measure of average kinetic particles in an object
Temperature
What does the law of conservation of energy say?
Energy cannot be created or destroyed
T or F: Convection is the movement of particles based on the fact that Hot air is more dense and sinks to the bottom of the colder particles
False. Convection is based on the idea that hot air particles are LESS dense
What is the equation for PE
PE= mgh
Energy of a particle in motion
Kinetic Energy
Imagine you are riding a roller coaster, what would you expect to happen to your energy as you ride down a slope.
PE transfers into KE and then back to PE
What type of heat transfer occurs when you touch a metal spoon into hot soup? Conduction, convection or radiation?
Conduction
What is the equation for KE
KE= 1/2 mv2
The ability to do work
Energy
What happens to PE as an object is falling?
a) It increases.
b) It decreases.
c) It stays the same.
d) It turns into electrical energy
It decreases
Why is water a good coolant?
It has a high specific heat
What is the equation for Work?
W= Fd
Movement of particles in a hot object that collide with one another, transferring Kinetic energy
Conduction
What are the variables that affect Thermal Energy?
Temperature and Mass
name a good thermal conductor
metals
What is the equation for Thermal Energy
Q=m(TF - Ti)C
Sum of Potential and Kinetic energy of a particle
Thermal energy