Science Review: mass, volume, density, buoyancy

Review:Understanding Weight, Mass, Volume, Density, and Buoyancy

Definitions

Write the correct definition for each term

Open Ended

Define the term weight

Open Ended

Define the term mass

Open Ended

Define the term volume

Open Ended

Define the term density

Open Ended

Define the term Buoyancy

True or False

Read each statement. Indicate whether the statement is true or false.

Multiple Choice

Your weight on the Moon would be the same as on Earth.

• True

• False

Multiple Choice

Mass is a measure of the amount of matter in an object, not space it occupies.

• True

• False

Multiple Choice

Volume for regular-shaped objects can be calculated by multiplying its dimensions.

• True

• False

Multiple Choice

Density is the mass-to-volume ratio of a substance.

• True

• False

Multiple Choice

1. A substance’s density can change when its temperature changes.

• True

• False

Multiple Choice

1. Ice is more dense than water, which is why it floats.

• True

• False

Multiple Choice

2. Buoyancy is the upward force a fluid exerts on an object.

• True

• False

Multiple Choice

2. Ships float higher in saltwater than in freshwater because saltwater is denser.

• True

• False

Short Answer

Open Ended

1. Why do you weigh less on the Moon than on Earth?

Open Ended

2. How can the volume of an irregular object be determined?

Open Ended

2. Explain why a kilogram of polystyrene foam occupies more volume than a kilogram of gold.

Open Ended

2. Why does ice float in water?

Open Ended

2. Describe how buoyancy determines whether an object will float or sink.

Open Ended

2. Describe how buoyancy determines whether an object will float or sink.

3. How does the principle of buoyancy apply to hot air balloons?

Open Ended

2. How does the principle of buoyancy apply to hot air balloons?

Open Ended

2. If a solid metal cube has a mass of 150 grams and occupies a volume of 50 cubic centimeters, what is its density?

Open Ended

2. A swimming pool is filled with 2500 liters of water. A large decorative rock is placed in the pool, causing the water level to rise by 200 liters. What is the volume of the rock?

Open Ended

2. If a solid metal cube has a mass of 150 grams and occupies a volume of 50 cubic centimeters, what is its density?

3. A swimming pool is filled with 2500 liters of water. A large decorative rock is placed in the pool, causing the water level to rise by 200 liters. What is the volume of the rock?

Multiple Choice:Critical Thinking

Multiple Choice

A toy boat made of plastic floats on water, but the same amount of plastic shaped into a solid block sinks. Why?

• The toy boat is lighter than the block of plastic.

• The shape of the toy boat allows it to displace more water than the block, providing greater buoyancy.

• The toy boat has a different chemical composition than the block.

• The water is denser around the toy boat than around the block.

Multiple Choice

During an oil spill in the ocean, why does oil float on top of the water? How can this property be advantageous in cleaning up the spill?

• Oil is more dense than water, making it float.

• Oil and water have the same density, but oil floats due to surface tension.

• Oil is less dense than water, making it float. This allows for easier collection and removal of oil from the water's surface.

• The ocean's currents push the oil to the surface.

Multiple Choice

Explain how submarines use the principle of buoyancy to submerge and surface.

• Submarines change their colour to blend with the water, affecting buoyancy.

• Submarines take in water to their fuel tanks to dive and release water to surface.

• Submarines alter the temperature of the water inside their hull to change buoyancy.

• Submarines fill ballast tanks with water to increase density and dive, and expel water to decrease density and surface.

Multiple Choice

Considering density and buoyancy, why is it important for life on Earth that ice floats on water instead of sinking?

• If ice sank, the polar ice caps would melt more rapidly, accelerating the rise in sea levels.

• Floating ice helps to cool the Earth's atmosphere.

• Ice absorbs more sunlight when it floats, preventing global warming.

• Floating ice increases the surface area for marine animals to rest.

Fill in the Blanks

Replace this with a sub-header that can be in multiple lines. ​

Fill in the blank with the correct term.