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Warm up 03-18-14. Question: Friction transforms useful motion into what kind of energy? Answer: heat Goal: I will learn about friction and net force. Element of the day. 76 – Osmium – Os Osmium is the hardest metal element, and is at least as expensive as rhenium.
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Warm up 03-18-14 • Question: Friction transforms useful motion into what kind of energy? • Answer: • heat • Goal: I will learn about friction and net force.
Element of the day • 76 – Osmium – Os • Osmium is the hardest metal element, and is at least as expensive as rhenium. • Osmium and iridium are alloyed in an incredibly hard and wear resistant material that was used in fountain pens and phonograph needles. • Osmium powder reacts with the air to produce a vapor called osmium tetroxide which is deadly. • Osmium is the densest element.
Warm up • Review Lab 5C • Notes 5.2 & 5.3 • Prep lab 5B • Tonight’s HW • Pgs 41-44 • Quiz Friday – Ch 5 Agenda / HW