instruction:
Given a scientific question and its correct answer, generate supporting facts for the answer. This supporting fact can be an explanation for the answer to the given question.
question:
Question: What type of joint are ball-and-socket, hinge, and pivot examples of? Answer: movable
answer:
Joints may be immovable, partly movable, or movable. Types of movable joints include ball-and-socket, hinge, and pivot joints.

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Question: What is the term for stored energy that an object has due to its position or shape? Answer: potential energy
answer:
A: Electric charges flow when they have electric potential energy. Potential energy is stored energy that an object has due to its position or shape.

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Question: Particles of a gas are constantly moving and bumping into things. this gives gases what? Answer: pressure
answer:
Particles of a gas are constantly moving and bumping into things. This gives gases pressure.