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Do Now In your notebook, answer the following question in complete sentences: What is the difference between mass and weight?
Mass vs. Weight Mass The amount of matter in an object Weight The force of gravity acting on an object The difference?? GRAVITY
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What is Gravity? Gravity is the attractive force between two objects Gravitys magnitude depends on: Mass of objects involved Distance between objects
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What’s the difference? MASS AND WEIGHT. MASS The quantity of matter in an object Always constant Can never be zero Measured with a balance Unit: grams.
Newton’s Law of Universal Gravitation. Newton's law of universal gravitation states that any two bodies in the universe attract each other with a force.
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KEY CONCEPTS WHAT DETERMINES THE STRENGTH OF THE FORCE OF GRAVITY BETWEEN TWO OBJECTS? WHAT TWO FACTORS COMBINE TO KEEP THE MOON AND EARTH IN ORBIT? Gravity.
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