Density and Pressure

Buoyancy is the tendency for objects to float in a fluid. We consider buoyancy the...

• Un-gravity force

• The upward force

• Gravitational pull

• Downwards pull on an object

When you increase your depth under water, the water pressure on your body

• increases

• decreases

• stays the same

Which liquid is the least dense?

• oil
• water
• syrup 
• plastic bottle

If you place an object in a fluid and it sinks which is true 

• its weight is less than the buoyant force
• the fluid is more dense than the object
• its weight  is greater than the buoyant force
• dead men tell no tales 

Why are solids more dense than liquids?

• All of the following

• More atoms

• No free moving ions

• Have a high mass for a certain volume

What is the unit for pressure?

• $Nm^2$

• Pascals

• Joules

• None of the

What two types of measurements make up DENSITY? 

• Mass and Volume
• Temperature and Mass
• Grams and Centimeters
• Volume and Weight

Tags

CCSS.HSG.MG.A.2

Archimedes used density to discover if the crown of gold was real because

• Substances have their own unique densities
• Substances can change densities depending on their size
• Substances can change densities depending on their mass
• Substances can change densities depending on their volume

If you have a gold brick that is 2 cm by 3 cm by 4 cm and has a density of 19.3 g/cm³, what is its mass?

• 463.2 g/cm³
• 463.2 g
• 0.804 kg
• 0.804 g

Find the volume of the cylinder.

• 282.6
• 516.2
• 133
• 214

Tags

CCSS.HSG.GMD.A.3

CCSS.8.G.C.9