Density

What is the difference between particles in gas and solid

• gas particles are closer together

• solid particles move faster than gas particles

• solid particles have lower density than gas particles

• solid particles have higher density than gas particles

Which units are used in measuring volume?

• grams

• centimeters

• milliliters

• grams/milliliter

What is the volume of object X?

• 10.0 mL

• 15.0 mL

• 20.0 mL

• 25.0 mL

Which of these will sink in water?

• Ice, density 0.92 g/mL

• A helium balloon, density of 0.000178 g/mL

• A chunk of lithium metal, density 0.534 g/mL

• A ribbon of magnesium metal, density of 1.7 g/mL

You accidentally spill some ethanol you were going to use for an experiment into a beaker of water. The ethanol has a mass of 40.5 g and a volume of 50 mL. Will the ethanol sink or float?

• Sink

• Float

What is the tool to get the volume?

• triple beam balance

• ruler

• thermometer

• graduated cylinder

what is the formula in calculating for density

• density = mass x volume

• density = volume / mass

• density = mass / volume

What is the density of a chunk of potassium that you throw into the water at the pool if the chunk has a mass of 13 grams and a volume of 15 cm³?

• 28 g/cm³

• 2 g/cm³

• 195 g/cm³

• 0.87 g/cm³

Calculate the density of the cube.

• 2 g/cm³

• 4 g/cm³

• 6 g/cm³

• 8 g/cm³

Explain why a cell phone will sink when you drop it in water

• The phone is heavier than water

• The phone is more dense than water

• The phone is lighter than the water

• The phone is less dense than water