Final answer:
The terms 'gravity,' 'joule,' and 'freefall' are related to forces: gravity is the force of attraction by the Earth, joule is the energy unit, and freefall describes motion under the influence of gravity alone.
Step-by-step explanation:
When discussing science vocabulary words related to forces, it is important to consider terms that are specifically tied to the dynamics of motion. Here are the three terms according to their descriptions:
- a. Gravity is the force with which the Earth attracts a body.
- b. Joule is the unit for energy.
- c. Freefall is the movement of a body in the Earth's gravitational field when no other forces act on it.
These terms are foundational to understanding how forces interact with objects, particularly within the field of classical mechanics. Gravity is not only a force that applies to earthly bodies but also governs the motion of celestial objects. The joule is a standard unit of measure in science that denotes the amount of energy transferred when a one-newton force is applied over a one-meter distance. Lastly, freefall is a concept that helps learners appreciate the sole influence of gravity on a body's acceleration when air resistance and other external forces are negligible.