Purpose: To understand two or more forces acting on an object, including gravity and friction
Problem: Why don't paper airplanes stay in the air forever?
Background: A force is a push or pull on an object. Depending on if these forces are balanced
or unbalanced; they can cause an object to move. Two unbalanced forces that we experience everyday are the forces of friction and gravity
Friction is a force that opposes motion as one object rubs against another. This is a force that always acts in the opposite direction of the object's motion. Gravity is another force that pulls all objects toward each other. Due to Earth's extremely large mass, all objects close to Earth are attracted toward it, like a magnet. Thus, gravity acts on objects in a downward direction toward the center of Earth.
Hypothesis: