Direct Variation Answers

NoteCDEFGABFrequency(Hz)261.6293.7329.6349.2392.0440.0493.9The table above lists the frequencies of the C major key. Determine the ratio of the note A to middle C. Express the answer as a simple integer ratio. (Ratios will be approximate due to rounding.)a.4 to 3b.9 to 8c.5 to 3d.17 to 9

When graphing a sine curve model using the equation , the period (or wavelength) will be represented by , so . Determine the equation for the sine curve that models the D# wave if the wavelength of D# = 1.106 meters. a. b. c. d. Please select the best answer from the choices provided

Fill in the blank:The distance from one high point of a wave to the next wave’s high point is called _____.a.wavelengthc.timeb.frequencyd.distance

NoteCDEFGABFrequency(Hz)261.6293.7329.6349.2392.0440.0493.9The table above lists the frequencies of the C major key. Determine the ratio of the note F to middle C. Express the answer as a simple integer ratio. (Ratios will be approximate due to rounding.)a.4 to 3b.9 to 8c.5 to 3d.17 to 9

A chord consists of notes that sound good together. The C major chord, starting at middle C, has the following frequencies:C - 262 HzE - 330 HzG - 392 HzDetermine the ratio of the frequency of E to C. Express the answer in a simple integer ratio. (Due to rounding the ratio will be approximate.) How many E waves will fit in the length of four C waves?a.2b.3c.4d.5

Examine the following wavelength. What is the ratio of the wavelengths of these two notes? a. 5 to 4 b. 3 to 2 c. 6 to 5 d. 2 to 1 Please select the best answer from the choices provided

NoteCDEFGABFrequency(Hz)261.6293.7329.6349.2392.0440.0493.9The table above lists the frequencies of the C major key. Determine the ratio of the notes to middle C. Express the answers as a simple integer ratio. (Ratios will be approximate due to rounding.) The smaller the numbers in the ratio, the greater the consonance. Decide which of the notes when played with middle C would have the greatest dissonance.a.G and Cb.B and Cc.D and Cd.E and C

What do you notice about the frequency of the sine function: and the frequency of the cosine function: ? a. they have the same value c. the value is the same as the amplitude b. they have a zero value d. there is no frequency value for the cosine function Please select the best answer from the choices provided

The C major key, starting with the middle C, consists of seven notes (white keys on the piano) with the following frequencies.NoteCDEFGABFrequency(Hz)261.6293.7329.6349.2392.0440.0493.9Determine the ratio of the note E to middle C.a.1.1224c.1.434b.1.2599d.1.3454

The C major key, starting with the middle C, consists of seven notes (white keys on the piano) with the following frequencies.NoteCDEFGABFrequency(Hz)261.6293.7329.6349.2392.0440.0493.9Determine the ratio of the note B to middle C.a.1.8877c.1.9348b.1.7983d.1.3654

A chord consists of notes that sound good together. The C major chord, starting at middle C, has the following frequencies:C - 262 HzE - 330 HzG - 392 HzDetermine the ratio of the frequency of G to C. Express the answer in a simple integer ratio. (Due to rounding the ratio will be approximate.) How many G waves will fit in the length of four C waves?a.6b.5c.4d.3

When graphing a sine curve model using the equation , the period (or wavelength) will be represented by , so . Determine the equation for the sine curve that models the G# wave if the wavelength of G# = 0.828 meters. a. b. c. d. Please select the best answer from the choices provided

Examine the following wavelength. What is the ratio of the wavelengths of these two notes? a. 5 to 4 b. 3 to 2 c. 6 to 5 d. 2 to 1 Please select the best answer from the choices provided

When graphing a sine curve model using the equation , the period (or wavelength) will be represented by , so . Determine the equation for the sine curve that models the G# wave if the wavelength of G# = 0.828 meters. a. b. c. d. Please select the best answer from the choices provided

What is the relationship between frequency and period?a.frequency is the same as the periodc.frequency is the reciprocal of the vibrationb.frequency is the reciprocal of the periodd.there is no relationship

When graphing a sine curve model using the equation , the period (or wavelength) will be represented by , so . Determine the equation for the sine curve that models the D# wave if the wavelength of D# = 1.106 meters. a. b. c. d. Please select the best answer from the choices provided

When an octave is divided into twelve equal steps, a chromatic scale results. The ratios between sucessive notes is constant. C C# D D# E F F# G G# A A# B C 261.6 277.2 293.6 329.6 349.2 370.0 392.0 440 466.1 493.8 523.2 Determine the missing frequency for G# and D# using the ratio 1.0595. Round to the nearest tenth. What is the ratio of frequencies between G# and D#? Would these two notes be consonant or dissonant? a. , consonant b. , consonant c. , dissonant d. , dissonant Please select the best answer from the choices provided

A chord consists of notes that sound good together. The C major chord, starting at middle C, has the following frequencies:C - 262 HzE - 330 HzG - 392 HzDetermine the ratio of the frequency of G to E. Express the answer in a simple integer ratio. (Due to rounding the ratio will be approximate.)a.5 to 4b.3 to 2c.6 to 5d.9 to 8