Varying frequency of the vibrating string

Question 1

Variables of frequency of first harmonic

Answer 1

• Length of string, l (m)
• tension of string, T (N)
• mass per unit length of string, (weird u) (kgm-1)

Question 2

Equation

Answer 2

f = 1/2L x (square root of ( T/M))

Question 3

idea of proportionalities

Answer 3

a = kb where k is a constant, therefore a is directly proportional to b

Question 4

whats the independent and dependent variables

Answer 4

x = independent (what you change)
y = dependent

Question 5

equation for length as independent

Answer 5

1/2 x (squareroot (T/M)) x 1/L

Question 6

equation for tension as independent

Answer 6

1/ 2L (squareroot (M)) x (square root (T))