What is the main focus of this video?

• Detailed experiments on mass and weight

• Overview and differences of Mass, Weight, Volume, Density, and Specific Gravity

• Applications of specific gravity in engineering

• History of scientific measurements

What is the basic SI unit of mass?

• Gram

• Newton

• Kilogram

• Cubic meter

Which force is responsible for weight?

• Gravitational pull of the earth

• Magnetic force

• Electromagnetic force

• Nuclear force

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What does volume measure?

• The amount of matter in an object

• The compactness of an object

• The amount of three-dimensional space occupied by a substance

• The force exerted by gravity

What happens to the weight of an object if it is taken to the moon?

• It increases

• It becomes zero

• It remains the same

• It decreases

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How is density calculated?

• Mass divided by volume

• Volume divided by weight

• Volume divided by mass

• Weight divided by volume

What are the three dimensions used to calculate volume?

• Width, length, and depth

• Height, length, and depth

• Length, width, and height

• Height, width, and depth

What does a high density indicate about an object's matter?

• It is very compact

• It is very spaced out

• It has no mass

• It has no volume

What is the contact substance most often used in specific gravity calculations?

• Air

• Water

• Mercury

• Oil

What does a specific gravity less than one indicate?

• The object has no volume

• The object will sink in water

• The object will float on water

• The object has no mass