Show:
Energy: Types and Transfers
Kinetic Energy Calculation
GPE Calculation
Heat and Heat Transfers
Energy Transfers
100
This major type of energy is energy created through motion
What is kinetic energy
100
This is the formula for Kinetic Energy calculations
What is KE=1/2mv(squared)
100
This is the formula for Gravitational Potential Energy
What is GPE=mgh
100
This is the energy that atoms and molecules move
What is heat
100

This is the energy transfer that takes place when a rubber band is plucked and goes "twang!"

What is elastic to sound energy

200
This is the measured possibility of energy in an object before it is moving in any way
What is potential energy
200
Formula: KE=1/2mv(squared) What is the kinetic energy of a 20kg object with a velocity of 3 meters/sec?
What is 90 joules
200
What is the rate of gravity used for the gravitational potential energy formula?
What is 9.8 meters/sec(squared)
200
This is a type of heat transfer caused by two objects of different temperatures being in contact with one another
What is conduction
200

This is an energy transfer that takes place when you drop the mic

What is gravitational to motion/kinetic

300
This law states that energy is never created or destroyed, only transferred from one type to another
What is Law of Conservation of Energy
300
Formula: KE=1/2mv(squared) What is the kinetic energy of a 1kg object with a velocity of 5 meters/sec?
What is 12.5 joules
300
Formula: GPE=mgh This is the gravitational potential energy of a 2kg object that is 10 meters off the ground
What is 196 joules
300
This is a heat transfer that takes place through empty space
What is radiation
300
What type of HEAT transfer is taking place when the pavement in the parking lot gets hot in the summer?
Radiation (Heat from the Sun travels through empty space to heat the ground)
400
This is an energy transfer that occurs when an electric stove top is turned on
What is electrical energy to thermal energy
400
What unit is energy measured in?
What is joules or J
400

Formula: GPE=mgh This is the gravitational potential energy of a 8kg object that is 14 meters off the ground.

Assume g=10m/s2

What is 1120 joules?

400
This is a heat transfer that takes place through currents of movement through a liquid or a gas
What is convection
400

The energy transfer that always happens in a battery powered electric circuit after it is completed

What is chemical to electrical?

500
This is the type of energy transfer that takes place with a wind turbine
What is motion to electrical
500
Formula: KE=1/2mv(squared) What is the kinetic energy of a 2000 gram object with a velocity of 300 centimeters/sec?
What is 9 joules (Check the unit of measure!)
500
Formula: GPE=mgh Which has the higher gravitational potential energy: A rock that weighs 7kg held 12 feet off the ground, or a 12kg barbell held 8 feet off the ground?
The barbell
500
This is an example of conduction, convection, and radiation heat transfer (you come up with an example for each)
What is ___________________________________
500

What type of ENERGY transfer takes place when convection heat transfer creates wind?

Thermal to Motion Bonus 300 points for the first group to draw out how convection heat transfer works