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
What form of energy does potential spring energy most often change to?
Kinetic energy
