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March 1/2, Week # 8 NB -126

March 1/2, Week # 8 NB -126. Learning Target: I will Explain the relationship between weight and gravity. Differentiate between weight and mass. Homework: Finish the gravity exploration Essential Question : Which will remain the same on Mars: mass or weight?. Agenda: Gravity notes

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March 1/2, Week # 8 NB -126

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  1. March 1/2, Week # 8NB-126 Learning Target: I will • Explain the relationship between weight and gravity. • Differentiate between weight and mass. Homework: • Finish the gravity exploration Essential Question: • Which will remain the same on Mars: mass or weight? Agenda: • Gravity notes • Gravity exploration TO DO NOW: • Turn in your homework (vocab) to inbox • Prepare page 125 for Cornell Notes.

  2. Experiment Data, NB-123 Hypothesis: If the aluminum is used, there will be more rolling friction on the car. Data: Results: According to the data, _________________ has the most/least rolling friction on the car. Conclusion: The data does/does not support my hypothesis because…

  3. Gravity Cornell Notes, NB-125 • Answer: The force of gravity on an object is called weight. • Answer: Mass and weight are not the same thing! Remember, mass is the amount of matter an object contains.

  4. Questions: • On Earth an object has 2 billion atoms. Will it still have the same amount of atoms on the Moon? • Yes! The number of atoms will not change!! • On Earth an object has a mass of 500 grams. Will is still have the same mass on the Moon? • Yes! The mass of an object does not change just like the number of atoms will not change.

  5. Gravity Cornell Notes, NB-125 ANSWER: • A 10-kilogram rock has a mass of 10 kilograms no matter where it is in the universe. (The number of atoms) • A 10-kilogram rock’s weight however, can vary greatly depending on where it is.

  6. Gravity Cornell Notes, NB-125

  7. 13.1 Calculating weight W • The weight equation can be rearranged into three forms to calculate weight, mass, or the strength of gravity. m g

  8. Questions: • On Earth an object has 2 billion atoms. Will it still have the same amount of atoms on the Moon? • Yes! The number of atoms will not change!! • On Earth an object has a mass of 500 grams. Will is still have the same mass on the Moon? • Yes! The mass of an object does not change just like the number of atoms will not change.

  9. The following three questions were obtained at http://www.gcse.com/eb/gtest3.htm

  10. Gravity Cornell Notes, NB-125 W Question Answer The formula is: Weight = Mass × Gravity Hence: Weight = 1500 × 10 = 15000 newtons m g • The strength of gravity at the Earth's surface is 10 newtons per kilogram. Calculate the weight of a car with a mass of 1500 kg.

  11. Gravity Cornell Notes, NB-125 W Question Answer Mass is independent of location, so the astronaut's mass on the Moon is the same as the astronaut's mass on the Earth. Hence: Astronaut's mass on the Moon = Astronaut's mass on the Earth = 80 kg m g • The strength of gravity on the Moon is 1.6 newtons per kilogram. If an astronaut's mass is 80 kg on Earth, what would it be on the Moon?

  12. Gravity Cornell Notes, NB-125 W Question Answer The formula is: Weight = Mass × Gravity Hence: Weight = 10 × 26 = 260 newtons m g • The surface gravity of Jupiter is about 26 newtons per kilogram. What would be the weight of a probe of mass 10 kg at Jupiter's surface?

  13. Gravity Exploration! 

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