Completed work: Table of results, calculated averages and summary

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## Completed work: Table of results, calculated averages and summary

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**Exploring Mass and Weight**Completed work: Table of results, calculated averages and summary**Title: Lab: Exploring Mass and Weight**Date: Use digital balance Use Newton spring Summary: What is a Newton? What does this number you calculated for the average represent? How close were you to actual number?**Weight and Mass**Weight is a measure of the force of gravity on an object Weight = Mass x acceleration due to gravity w= mg**Second Law of Motion:**The law of Acceleration**2nd Law of Motion**Force = mass x acceleration F = m x a W = m x g Weight = mass x gravity**Acceleration due to gravity**Constant: 9.8 m/sec/sec How close were you?**Title: Lab: Exploring Mass and Weight**Date: Use digital balance Use Newton spring Summary: 1) What is a Newton? 2) What does this number you calculated (weight/mass) represent? How close was your average to the actual number of 9.8?**2nd law of Acceleration**• How much force do you exert when you take a step? • How about on the moon? (acceleration due to gravity = 1.6**2nd Law of Acceleration**What would happen if these two objects fell? Think about force, mass, and acceleration vs.**How fast they fall misconception**• http://www.glencoe.com/sites/common_assets/science/virtual_labs/E25/E25.html (different objects on Earth and Moon) • http://cccmkc.edu.hk/~kei-yhk/MyProject/falling.html (Galileo’s famous ball vs feather experiment) • http://www.physicsclassroom.com/Class/1DKin/U1L5e.cfm (the big misconception)**2nd Law of Motion**Force = mass x acceleration F = m x a W = m x g So, if acceleration is held constant, what is the relationship between mass and force?**2nd Law of Motion**Force = mass x acceleration F = m x a constant So, if we keep acceleration constant, what is the relationship between mass and force? More mass more force**Tie back to 1st law**Which object would require more force to get moving? vs.**INERTIA**Tendency of objects to stay at rest or remain in motion Resist change in motion**Tie back to 1st law**Which object would require more force to get moving? vs.