Fluid mechanics

Put the liquids in order from most dense to least dense?

• 4, 3, 2, 1
• 1, 2, 3, 4
• 3, 4, 2, 1, 
• 4, 3, 1, 2

Frank has an eraser. It has a mass of 4g, and a volume of 2cm³. What is its density?

• 8 g/cm³
• 2 g/cm³
• 1/2 g/cm³
• 24 g/cm³

What is the volume of Object X?

• 10.0 cm³
• 15.0 cm³
• 20.0 cm³
• 25.0 cm³

Why do some substances float on water?

• they are warmer than water
• they are cooler than water
• they are more dense than water
• they are less dense than water

Helium balloons rise on earth because

• helium is less dense than air
• helium is more dense than air
• helium is cooler than air
• helium is warmer than air

What is the measuring unit for mass?

• centimeter 
• millimeter 
• grams 
• pounds

Which units of measurement are used for volume?

• grams
• centimeters
• grams/milliliter
• milliliter

What units are used to measure Density?

• cm³/g
• g
• g/cm³
• cm³

Fluids can also include__ and__. 

• solids and liquids
• solids and gases
• liquids and gases
• liquids

What is the equation used to calculate pressure?

• pressure= force/mass
• pressure =mass/volume
• pressure=area/force
• pressure=force/area