Practice Physical Quantities (1.2) - Physical World and Measurement

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9 questions

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3 cards from this section. Quick, good the night before a test.
Exercise
6 questions · about 4 min · pass mark 70%. Hints available.
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Quiz
3 questions · about 2 min · pass mark 70%. Hints available.
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6 sample questions

Question 1.
What is a physical quantity?
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Think about what can be measured.
Question 2.
Name two fundamental quantities.
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Consider what basic measurements you often use.
3Question 3.
What is a fundamental quantity?
- A derived measure
- An independent measurement
- A calculated value
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Recall the primary measures in physics.
4Question 4.
Density is defined as mass divided by volume.
- True
- False
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Think about the formula you studied.
Question 5.
A container holds 5 kg of liquid with a volume of 2 liters. Calculate its density and state if it's denser than water (1 kg/L).
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Use the density formula.
Question 6.
If a new unit of measurement for mass is created that is half as light as the kilogram, how will that affect the derived quantities like force (F = ma)?
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Consider how changing mass affects derived laws of motion.

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