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Name: ___________________________ Notes - 4.2 Newton’s First Law of Motion: Inertia 1. State Newton’s 1st Law of Motion. 2. Why is our every day experience different from what Newton’s 1st Law states? 3. Why does an object given a push across a surface slow down? Why is this in agreement with Newton’s 1st Law? 4. Experiments have thoroughly verified that any change in velocity (speed or direction) must be caused by an ___________________________. 5. The property of a body to remain at rest or to remain in motion with constant velocity is called ______________________. 6. Newton’s first law is often called _____________________________. 7. The inertia of an object is measured by its ________________. 8. Which has more mass: a kilogram of cotton balls or a kilogram of gold? 9. If you go to the Moon, which has a gravitational force one-sixth of the gravitational force on the Earth’s surface, what changes? Your mass or your weight?