The light from Polaris travels through space in the form of ______ energy.
radiative
Rapidly moving comets have more ______ energy than slowly moving ones.
kinetic
An apple contains ______ energy that your body can convert into other forms energy.
chemical potential
Nuclear fusion in stars converts some of the ______ energy of hydrogen nuclei into light and heat.
mass-
Due to its much higher density, water heated to 80 degrees (Celsius) contains more ______ energy than air at the same temperature.
thermal
An asteroid that is moving farther from the Sun is gaining ______ energy.
gravitational potential