Friction destroys energy, rather than changing its form true or false

In this experiment, you will use a track, a toy car, and some washers to explore newton’s first two laws of motion. you will make observations and collect data regarding the motion of these objects. in the space below, write a general scientific question that you will answer by doing this experiment.

Matter that emits no light at any wavelength is called

What is an electric motor? explain its operation. 2-3 sentence