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This physics video tutorial explains why some objects sink and why other objects float. The answer is density. For example, ice floats on water because ice is lower density than water. A block of aluminum metal sinks in water since the density of aluminum is greater than the density of water. A helium balloon rises because the density of helium is lower than the density of air. Hot air rises and cold air sinks because hot air is light and cold air is heavy. Static Equilibrium: https://www.youtube.com/watch?v=qGvFAl5CK_c Elasticity and Hooke's Law: https://www.youtube.com/watch?v=HALbtyDUjp0 Tensile Stress: https://www.youtube.com/watch?v=c6ndD5kTkP4 Elastic Modulus: https://www.youtube.com/watch?v=qQZRTBRJbl4 Bulk Modulus: https://www.youtube.com/watch?v=ugxgSIGIHrg ___________________________ Volume Unit Conversion: https://www.youtube.com/watch?v=ylehgnMC1gw Specific Gravity & Density of Mixtures: https://www.youtube.com/watch?v=ZcJGFZt-NO4 Intro to Pressure & Fluids: https://www.youtube.com/watch?v=kkq8ruV8_Jw Atmospheric Pressure Problems: https://www.youtube.com/watch?v=tYd_CYpNpeY ____________________________ The Gallon Crusher: https://www.youtube.com/watch?v=abXVQZlFPJg Absolute Pressure Vs Gauge Pressure: https://www.youtube.com/watch?v=XCiBaFp8L_M Water Pressure Vs Gauge Pressure: https://www.youtube.com/watch?v=12K_aP1KPFk Full-Length Videos and Worksheets: https://www.patreon.com/MathScienceTutor/collections Physics PDF Worksheets: https://www.video-tutor.net/physics-basic-introduction.html
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