<span>They are materials used on stage and screen throughout a
performance or a scene from television show or movie. They are easily assembled or disassembled to
fit the type of scene being performed on stage or on screen. Examples are costumes, furnishings, make-up and
other materials used in the scene.</span>
The measurement of the force it takes to work against gravity is called weight. You can measure weight on a scale. If you try to pick up heavy objects, you might need to be as strong as a super hero to lift them. Lifting overcomes the pull of gravity. Heavier objects need to have a strong force to lift them.
It is called Musique Concrete. (The first e in concrete is accented.)