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In this lesson, we explore the fundamental concepts of mass and weight, emphasizing how both are influenced by gravity. We will utilize the formula Weight (Fw = mg) to perform practical measurements of mass and weight, leading to the creation of a graph to visualize our findings. Additionally, we will highlight Hafnium (Hf), an element known for its high melting point and corrosion resistance, noting its applications in plasma torches for cutting steel. Homework assigned includes pages 14-16 with specific focus on page 16.
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Warm up 03-10-14 • Question: Which depends on gravity - mass or weight? • Answer: • Weight. Fw = mg • Goal: I will measure mass and weight, then graph and determine gravity.
Element of the day • 72 – Hafnium – Hf • Hafnium has a high melting point and is extremely resistant to corrosion even at high temperatures, so it is perfect for plasma torches, which are used to cut through steel.
Warm up • Donations • Lab 5A • Late work • Tonight’s HW • Pgs14-16 (only a on 16) • Donations • Late work / Test Corrections Agenda / HW