FORCES IN FLUIDS DENSITY WHAT IS DENSITY mass

FORCES IN FLUIDS DENSITY

WHAT IS DENSITY? mass Density = amount of _______ packed Space (volume) into a specific _______ • More mass packed = more dense • Less mass packed in = less dense

WHAT IS DENSITY? Density triangle: • Density = M / V • Mass = D x V • Volume = M / D M D V

DENSITY PROBLEM A box has a mass of 45 grams and a volume of 9 cm 3. What is the Density of the box?

WHAT IS DENSITY? Every substance has its own unique ______ density • Like DNA and fingerprints • Used to identify unknown materials

HOW DOES DENSITY DETERMINE FLOATATION? By comparing densities, you can predict whether an object will float or sink in a fluid: sink • Object’s density > Fluid’s density : _______ • Object’s density < Fluid’s density : _______ float Hover in • Object’s density = Fluid’s density : _______ middle

HOW CAN DENSITY BE CHANGED? Either mass or the volume of an object must change, while the other is constant If mass increases but volume stays then increases density ________

WHAT IS DENSITY? Either mass or the volume of an object must change, while the other is constant If volume increases but mass stays then decreases density ________

DENSITY COLUMN *Calculate the density for each liquid **Use the colored pencils to determine where the liquid layer would be located. ***Add the two solid objects at the appropriate locations