Kinetic Energy Types
This type of KE is due to the motion of macroscopic things. Often times just referred to as KE
Mechanical
This type of PE is due to an objects height
gravitational potential
What is the gravitational potential energy of a 4 Kg object that is 8 meters above the ground? Include units!
313.6 Joules
A boy is holding a ball above the ground. He drops the ball and the ball accelerates towards the ground. What energy transformation is described?
Joules
This type of KE is due to the motion of ions or charged particles
electricity
This type of energy is due to the energy stored in stretched objects
elastic potential
What is the Kinetic energy of a 4 Kg object that has a velocity of 8 m/s? Make sure to include units!
128 Joules
A person flips a light switch and a lightbulb starts to shine. What energy transformation is described here?
electrical to radiant
What is the acceleration due to gravity on planet Earth?
9.8 meters per second squared
This type of KE is due to the random motion or vibration of atoms and molecules
thermal energy
This type of PE is due to energy stored in the bonds between substances
chemical potential
What would the mass of an object that is 10 meters above the ground be if the object has 294 Joules of gravitational potential energy? Include units!
3 Kilograms
A person burns a log to warm up. What energy transformation is described here?
chemical to thermal
29.4 meters per second squared
This type of KE is due to the oscillations or transfer of energy via a wave through substances
sound
This type of PE is due to the energy stored in the nuclei of unstable atoms
nuclear
What would the velocity of a 10 Kg object that has 125 Joules of kinetic energy be? Include units!
5 meters per second
A uranium pellet is used to boil water at a nuclear power plant. What type of energy transformation is being described?
nuclear to thermal
What is the famous Einsteinian equation that relates energy to mass?
E=mc^2
This type of KE is a wave produced when charged particles vibrate with a high frequency
radiant or light energy
List the four types of potential energy we have learned
1.2755 meters
A machine spins a magnet to induce electrons to flow through wires. What type of energy transformation is being described?
mechanical or KE to electrical
Recite the law of conservation of energy/1st law of thermodynamics
Energy is neither created nor destroyed, only transformed in to other forms