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Questions and Answers
Explain what the meniscus is in the context of a measuring cylinder.
Explain what the meniscus is in the context of a measuring cylinder.
The meniscus is the curved upper surface of a liquid caused by surface tension. In a measuring cylinder, this surface can curve up or down, but the surface of water curves downwards.
Why is a 1 litre (1 dm3) cylinder unlikely to be suitable for measuring a small volume like 5 cm3?
Why is a 1 litre (1 dm3) cylinder unlikely to be suitable for measuring a small volume like 5 cm3?
A 1 litre cylinder is too large for measuring small volumes accurately. Using a 10 cm3 cylinder would provide a more precise measurement.
Explain how to measure the volume of an irregularly shaped object using the displacement method.
Explain how to measure the volume of an irregularly shaped object using the displacement method.
Partially fill a measuring cylinder with water, note the volume, then immerse the object in the water. The increase in water level is equal to the volume of the object.
What is the SI unit of length commonly used in physics?
What is the SI unit of length commonly used in physics?
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Why do we generally use SI units in physics?
Why do we generally use SI units in physics?
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Why is it important to choose a measuring cylinder that is about three or four times larger than the object when using the displacement method?
Why is it important to choose a measuring cylinder that is about three or four times larger than the object when using the displacement method?
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What is the relationship between one litre and one dm3?
What is the relationship between one litre and one dm3?
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Define the term 'meniscus'.
Define the term 'meniscus'.
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How would you describe the process of 'displacement'?
How would you describe the process of 'displacement'?
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Explain what it means to 'immerse' an object in a fluid.
Explain what it means to 'immerse' an object in a fluid.
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How can one accurately measure the volume of a liquid when using a scale?
How can one accurately measure the volume of a liquid when using a scale?
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What quantity is measured to determine the thickness of a single sheet of paper in a stack?
What quantity is measured to determine the thickness of a single sheet of paper in a stack?
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What is the formula for calculating the volume of a cylinder?
What is the formula for calculating the volume of a cylinder?
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Calculate the radius of the brass coil given that it has a height of 12 cm and 21 turns.
Calculate the radius of the brass coil given that it has a height of 12 cm and 21 turns.
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If the brass coil is unwound and straightened into a cylinder with a height of 12 cm, what is the volume of this cylinder?
If the brass coil is unwound and straightened into a cylinder with a height of 12 cm, what is the volume of this cylinder?
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How do you find the mass of the brass used to make the neck ring?
How do you find the mass of the brass used to make the neck ring?
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What is the density of brass?
What is the density of brass?
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What practical consequence do variations in the density of liquids have?
What practical consequence do variations in the density of liquids have?
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