00:01
Okay, this question asks which type of energy is or are present when there is no visible motion.
00:07
To be able to approach this problem, we have to look at all three options, which a is kinetic energy, b, potential energy, and c thermal energy.
00:17
Let's start with what kinetic energy is.
00:19
Kinetic energy has the formula of 1 -half mv squared, m being the mass, and v being the velocity.
00:26
And kinetic energy is created when an object moves through, has a motion by itself.
00:33
And b, potential energy has the formula of m -g -h, and this is the energy that is stored in an object due to its position relative to something.
00:44
We usually relate this to a zero position, such as the ground.
00:50
And c, thermal energy.
00:55
Thermal energy has the formula of m.
00:58
C times delta t.
01:00
C here is the specific key constant...