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Warm up 02-18-14

Warm up 02-18-14. Question: What does the slope of a position vs. time graph tell you? Answer: The speed of the object. Goal: I will practice interpreting position vs. time graphs. Element of the day. 60 – Neodymium – Nd

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Warm up 02-18-14

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  1. Warm up 02-18-14 • Question: What does the slope of a position vs. time graph tell you? • Answer: • The speed of the object. • Goal: I will practice interpreting position vs. time graphs.

  2. Element of the day • 60 – Neodymium – Nd • Neodymium is most famous for neodymium magnets, which are actually an alloy of neodymium, iron and boron. These are the strongest ready available permanent magnets, and are used in fake earrings, high quality headphones and tiny motors. • Neodymium can also be used in light bulb glass to filter out some light, giving it a more natural light (like praseodymium). A more efficient version of this is the compact fluorescent version which uses europium instead.

  3. Warm up • Check answers • Graphing activities • Tonight’s HW • Pg15-20, 26-28 • Warm ups due tomorrow. Agenda / HW

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