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Questions and Answers
Which of the following is a form of electromagnetic radiation?
Which of the following is a form of electromagnetic radiation?
- X-rays (correct)
- Earth's magnetic field
- Sound waves
- Ocean waves
What determines the color of an object?
What determines the color of an object?
- Its weight
- The material it is made of
- Its density
- The wavelength of light it reflects (correct)
What is the speed of light in a vacuum?
What is the speed of light in a vacuum?
- $4 \times 10^8$ meters per second
- $1 \times 10^8$ meters per second
- $3 \times 10^8$ meters per second (correct)
- $2 \times 10^8$ meters per second
Which of the following best describes the behavior of light when it passes from one medium to another?
Which of the following best describes the behavior of light when it passes from one medium to another?
What is the formula for compound interest?
What is the formula for compound interest?
If the principal amount is $1000, the annual interest rate is 5%, and it is compounded annually, what will be the amount after 2 years?
If the principal amount is $1000, the annual interest rate is 5%, and it is compounded annually, what will be the amount after 2 years?
In compound interest, what does 'n' represent in the formula P(1 + r/n)^(nt)?
In compound interest, what does 'n' represent in the formula P(1 + r/n)^(nt)?
If the principal amount is $5000, the annual interest rate is 8%, and it is compounded semiannually, what will be the amount after 3 years?
If the principal amount is $5000, the annual interest rate is 8%, and it is compounded semiannually, what will be the amount after 3 years?
In compound interest, if the principal amount is $2000, the annual interest rate is 6%, and it is compounded quarterly, what will be the amount after 3 years?
In compound interest, if the principal amount is $2000, the annual interest rate is 6%, and it is compounded quarterly, what will be the amount after 3 years?
What does 'n' represent in the compound interest formula P(1 + r/n)^(nt)?
What does 'n' represent in the compound interest formula P(1 + r/n)^(nt)?
What determines the color of an object?
What determines the color of an object?
Which of the following is a form of electromagnetic radiation?
Which of the following is a form of electromagnetic radiation?
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Study Notes
Electromagnetic Radiation
- Electromagnetic radiation includes forms such as light
Color of an Object
- The color of an object is determined by the wavelengths of light it absorbs or reflects
Speed of Light
- The speed of light in a vacuum is a constant value
Behavior of Light
- When light passes from one medium to another, it is refracted, or bent, due to the change in speed
Compound Interest
- The formula for compound interest is P(1 + r/n)^(nt)
- In the formula, 'n' represents the number of times the interest is compounded per year
- If the principal amount is $1000, the annual interest rate is 5%, and it is compounded annually, the amount after 2 years will be $1102.50
- If the principal amount is $5000, the annual interest rate is 8%, and it is compounded semiannually, the amount after 3 years will be $6431.19
- If the principal amount is $2000, the annual interest rate is 6%, and it is compounded quarterly, the amount after 3 years will be $3942.19
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