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Questions and Answers
In direct proportionality, if the independent variable x is not equal to 0, how can the proportionality constant k be expressed?
In direct proportionality, if the independent variable x is not equal to 0, how can the proportionality constant k be expressed?
- $k = y \times x$
- $k = \frac{y}{x}$ (correct)
- $k = y - x$
- $k = \frac{x}{y}
What does it mean for two variables to be directly proportional?
What does it mean for two variables to be directly proportional?
- The difference of the two variables is constant.
- The sum of the two variables is constant.
- The ratio of the two variables is constant. (correct)
- The product of the two variables is constant.
How can direct proportionality be represented using symbols?
How can direct proportionality be represented using symbols?
- $y < x$
- $y \propto x$ or $y \sim x$ (correct)
- $y > x$
- $y = x$
In a linear equation representing direct proportionality, what are the characteristics of the equation?
In a linear equation representing direct proportionality, what are the characteristics of the equation?
What is another name for the proportionality constant in direct proportionality?
What is another name for the proportionality constant in direct proportionality?
What is the speed of light in vacuum, a fundamental constant of nature?
What is the speed of light in vacuum, a fundamental constant of nature?
What is the range of wavelengths for visible light, as defined in the text?
What is the range of wavelengths for visible light, as defined in the text?
What are the primary properties of light mentioned in the text?
What are the primary properties of light mentioned in the text?
What represents the quanta of electromagnetic field and can be analyzed as both waves and particles?
What represents the quanta of electromagnetic field and can be analyzed as both waves and particles?
What is the main source of natural light on Earth mentioned in the text?
What is the main source of natural light on Earth mentioned in the text?
