Load = 200 N. Effort force? A2: 50 N (200 ÷ 4 = 50)
If the load is 100 N, what effort force is required? A2: 50 N (MA = 2 → Effort = 100 N / 2)
Does a fixed pulley reduce the force needed? A2: No. It changes the direction of force, not the magnitude. student exploration pulley lab answer key
If you’ve just finished the “Student Exploration: Pulley Lab” simulation (common in Gizmos, ExploreLearning, or similar platforms), you know it’s not just about pulling ropes. It’s about mechanical advantage, effort force, and trade-offs.
Use this answer key to check your work, but more importantly, understand why the numbers appear as they do. Physics isn’t just about getting the right answer—it’s about predicting the trade-offs. Load = 200 N
Why is actual MA always less than ideal MA? A: Friction in the pulleys and rope stiffness reduce efficiency.
By: The STEM Educator Team
Have questions about a specific pulley lab question? Drop a comment below (or ask your teacher). And don’t forget to clean up your virtual lab space! 😊 Downloadable PDF version of this answer key available – [Subscribe to our newsletter] (fictional link) This post avoids sharing direct answers to proprietary paid lab platforms (like specific Gizmos screenshots) but instead explains the universal physics principles and typical answers expected in such a lab. Adjust the numerical examples to match your specific lab’s load values if needed.
