Page 72 - Science Course 1 (Book 2)
P. 72
Mo8-L5a: How are Temperature, Kinetic Energy, and Heat Related and Different?
The greater the average distance between particles, Mechanical energy describes the energy of one
the greater the potential energy of the particles. object.
Thermal energy is the sum of the kinetic energy and Thermal energy describes the energy of the
the potential energy of the particles that make up a particles that make up a solid, liquid, or gas.
material.
The potential energy of the soccer ball depends on the distance between the ball and Earth.
The potential energy of the particles of matter depends on their distance from one another.
The particles that make
up the air in the ball are in
motion and have kinetic
energy.
The particles have
potential energy due to
their distance from one
another.
The ball has kinetic
energy because it is
moving.
The ball has potential
energy due to its
position above Earth.
Mechanical energy of soccer ball = Thermal energy of air inside soccer ball =
kinetic energy(motion of soccer ball) + kinetic energy(motion of all particles) +
potential energy (distance of ball from Earth) potential energy (distance between particle)
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