📚 Topic Summary
In physics, equilibrium refers to a state where the net force acting on an object is zero, resulting in no acceleration. For a hanging mass system, this means the upward forces (tension in the strings) are equal in magnitude and opposite in direction to the downward force (weight of the hanging masses). When these forces balance, the system is in static equilibrium, meaning it's not moving. Understanding equilibrium is crucial in many engineering and physics applications! ⚖️
🧮 Part A: Vocabulary
Match the term with its definition:
| Term |
Definition |
| 1. Tension |
A. The force of gravity on an object ($F = mg$) |
| 2. Weight |
B. A vector quantity with both magnitude and direction |
| 3. Equilibrium |
C. The pulling force exerted by a string or cable |
| 4. Vector |
D. The state where the net force on an object is zero |
| 5. Net Force |
E. The vector sum of all forces acting on an object |
Match the numbers to the letters above (e.g., 1-C)
✏️ Part B: Fill in the Blanks
In a hanging mass system in ________, the sum of the forces in both the horizontal and vertical directions must equal ________. This means the ________ forces must balance the ________ forces. The force of gravity pulling down on the mass is called ________, which can be calculated using the equation $F = mg$, where 'm' is the ________ and 'g' is the acceleration due to gravity (approximately $9.8 m/s^2$).
🤔 Part C: Critical Thinking
Imagine you are designing a complex mobile with multiple hanging objects. What factors would you need to consider to ensure the entire system remains in equilibrium? Explain your reasoning. 💡