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How can I easily practice calculating Frequency for my exams?

Kevin Wang
Math Tutor
Kevin Wang is a Math Tutor based in New York, New York. Kevin has been tutoring math for over 10 years, and specializes in K-12 math topics and standardized tests, such as SAT and ACT. Kevin has an economics background and a career in both finance and marketing analytics. His interest in tutoring goes back even longer than his career. He discovered tutoring at the start of his university career and enjoys it as a way to stay sharp with fundamental skills and remain up to date with trends in our education system. Kevin received a BS in Economics from Duke University.

Kevin Wang

Math Tutor

Expert Answer

When studying for frequency calculations for your upcoming exams, knowing exactly where you need to study is important. After you have practiced your test questions, you will start to notice a pattern in problems that you consistently get wrong. Whether it be graph interpretation, word problems, or solving for the unknown in reverse, knowing these areas is what's going to make you more accurate and swift. Of course, some review of basic math is necessary, but knowing what kinds of questions you will face can also be very helpful. Consistent practice and post-practice analysis will allow you to build a better study strategy and become more confident when performing the frequency calculations.

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What is the frequency if 80 oscillations are completed in 1 second?

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Frequency is the number of oscillations completed in a second. The answer would be 80 Hertz.

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Question

Do atoms have a frequency and, if so, does it mean everything vibrates?

Donagan

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Atoms have energy. Energy is often characterized as vibration. Vibration possesses frequency. So, yes, everything could be thought of as vibrating at the atomic level.

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What's the definition of frequency?

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The rate at which a vibration occurs that constitutes a wave, either in a material (as in sound waves), or in an electromagnetic field (as in radio waves and light), usually measured per second. The rate at which something occurs or is repeated over a particular period of time or in a given sample.

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How do I find frequency with time?

Community Answer

You can use the formula f = 1/T where T is the time period, f is the frequency.

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What is the proper definition of angular frequency?

Donagan

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It is the number of rotations or oscillations in a unit of time. It is typically measured in degrees (or radians) per second.

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How do I calculate the frequency of the wave length 600nm?

Community Answer

Use the formula c=λv. (c is the speed of light, or 2.998 x 10^8 m/s ; λ is the wavelength, or 600 nm from the given information ; and v is the frequency, the variable we are trying to find). Now it's just algebra. 2.998 x 10^8 m/s = 600 nm (v). You divide by 600 nm on both sides, of course first paying attention to units and converting 600 nm into 6 x 10^-7 m. The answer ends up being (5 x 10^14) Hz. One Hz is equal to 1/s.

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How do I find the frequency of wave lengths?

Donagan

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Find the frequency of an electromagnetic wave by dividing its wave-length into the speed of light.

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How do I calculate energy when the energy of a photon is not given?

Community Answer

To figure out the energy, use the E = hf equation. The energy of each photon is equal to Planck's constant, multiplied by the frequency of the light, h is always 6.63 * 10^-34 Joule seconds, and the frequency is 6 * 10^14 Hz. Plug those in and solve, and you get 4 * 10^-19 Joules.

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