Density, Mass and Volume
You Can Lead a Submarine to Water but You Cannot Make It Sink
Buoyancy, Archimedes and a Bathtub
Dense Ideas
A Measured Review
100
This is the formula for density.
What is d=m/v
100
When a submarine fills up its ballast tanks, it sinks because it increased this.
What is mass?
100
An object is negatively buoyant will _______ in water.
What is sink?
100
Density is the ratio of these two properties of an object.
What is MASS to VOLUME?
100
The amount of matter in an object.
What is mass?
200
An object has a volume of 300 cc and a mass of 200 grams. This is the density (round to the nearest 100th).
What is 0.67 g/cc?
200
A life jacket keeps you floating by making you less dense by doing this.
What is increases volume?
200
The force a fluid pushes an object upwards is called the _________ force.
What is buoyant?
200
A 100 gram sample of pure gold is 19.32 g/cc is cut into a third. This is the density of the smaller piece of gold.
What is 19.32 g/cc?
200
The amount of space an object takes up.
What is volume?
300
Mr. Newman has a 100 cc block of gold (19.23 g/cc). This is the mass of the gold block.
What is 1923 g or 1.923 kg?
300
A pilot flying a balloon can drop sandbags over the side to rapidly decrease the density of the balloon. This is the reason the density changes.
What is decrease in mass?
300
Mr. Newman builds a toy boat which can displace 5,670 ml and has a mass of 5.5 kg. The boat will ______ when placed in water.
What is float?
300
Pure water (at 4 degrees Celsius) has a density of this.
What is 1.0 g/cc?
300
To find the volume of an irregular solid you should use this method of finding volume.
What is displacement method?
400
A student has graduated cylinder of mercury (13.56 g/cc) which has a volume of 62 ml, this is the mass (rounded to the nearest 100th).
What is 840.72 grams?
400
The penny boats float until too many pennies were added. This was due to increasing the mass until the mass out weighed this.
What is the weight of displaced water?
400
Archimedes Principal explains the concept of __________.
What is buoyancy?
400
Density is known as a ________________ property because every substance has a specific density and can be used to help identify an unknown substance.
What is characteristic?
400
When measuring using a ruler which has 1/10 of cm markings (mm), you can accurately report to the _____ cm.
What is 1/100?
500
A 905 gram sample of wood (0.89 g/cc) has a volume of this to the nearest 100th of a cubic centimeter.
What is 1016.85 cc?
500
Submarines are able to get rid of the water in their ballast tanks by pushing it out with this.
What is compressed air?
500
A 80,000 kg submarine will have to displace _________ liters of water to be neutrally buoyant.
What is 80,000 liters?
500
An interesting fact about the density of water as it freezes to a solid.
What is becomes less dense?
500
An object with the same mass will have a different weight on different planets due to this.
What is gravity?
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