UNIT 5 Vocabulary Soc.Sci.

1. Machine: A mechanical device that performs a specific task or function.

2. Structure: Something that is built or constructed, such as a building or bridge.

3. Force: A push or pull that can cause an object to move, stop, or change direction.

4. Motion: The act of moving or changing position.

5. Engineering: The application of scientific and mathematical principles to design and build structures or machines.

6. Lever: A simple machine consisting of a rigid bar that pivots on a fixed point called a fulcrum, used to lift or move objects.

7. Pulley: A simple machine consisting of a grooved wheel with a rope or chain around it, used to lift or move heavy objects.

8. Inclined plane: A simple machine that is a sloping surface, often used to move objects to a higher or lower level with less force.

9. Gear: A toothed wheel that meshes with another toothed wheel to transmit or change the speed or direction of motion.

10. Friction: The resistance encountered when two surfaces move or try to move in contact with each other.

11. Load: The weight or force that a structure or machine is designed to support or carry.

12. Tension: The force that is transmitted through a rope, cable, or other flexible material when it is pulled tight.

13. Compression: The force that is applied to squeeze or press something, often used in structures to withstand weight or pressure.

14. Stability: The ability of a structure to maintain its balance and resist tipping over or collapsing.

15. Design: The process of creating or planning something, such as a machine or structure, with a specific purpose or function in mind.