Energy - Types Flashcards
What is kinetic energy?
Energy of motion
What is the equation for kinetic energy?
K = 1/2 mv^2
What is gravitational potential energy?
Energy based on position above the ground
What is the equation for gravitational potential energy?
Ug = mgh
What is mechanical energy?
Sum of kinetic and potential energy
What is spring potential energy?
Stored energy of compressing or stretching a spring
What is rotational kinetic energy?
Energy of rotational motion
What is the equation for spring potential energy?
Us = 1/2 kx^2
What is the equation for rotational kinetic energy?
Kr = 1/2 Iw^2
What is the equation for spring force?
Fs = kx
What is k?
Spring constant (how stiff a spring is)
What are the units for energy
Joules (J)
What is the conservation of energy?
Initial energy is equal to final energy
When does the energy in a system change?
When work is done
What form of energy does potential gravitational energy most often change to?
Kinetic energy
