Question

9/10
what types of energy are present during the rubbing of the sandpaper blocks?
heat and light
electricity and heat
light and motion
motion and sound

Explanation:

When rubbing sandpaper blocks, there is motion (kinetic energy) as the blocks are moved. Also, due to friction, sound is produced. There is no significant light production (so options with light are incorrect), and no electricity is involved (so option with electricity is incorrect).

Answer:

Motion and Sound