20,025
edits
Changes
→Example Calculations
===Example Calculations===
{| class="wikitable"
| style="height:20px; width:200px300px; text-align:center;" |A scientist wants to determine the [[frequency]] of a [[pendulum]]. They count that the [[pendulum]] [[oscillate]]s 15 times over 20 seconds. Calculate the [[frequency]] of the [[pendulum]].| style="height:20px; width:200px300px; text-align:center;" |A sailor notices a buoy bounce up and down 24 times over a minute. Calculate the [[frequency]] of the [[wave]]s.
|-
| style="height:20px; width:200px300px; text-align:left;" |'''1. State the known quantities'''
n = 15
t = 20s
| style="height:20px; width:200px300px; text-align:left;" |'''1. State the known quantities'''
n = 24
t = 60
|-
| style="height:20px; width:200px300px; text-align:left;" |'''2. [[Substitute (Maths)|Substitute]] the numbers into the [[equation]] and [[Solve (Maths)|solve]].'''
<math>f = \tfrac{n}{t}</math>
<math>f = 0.75Hz</math>
| style="height:20px; width:200px300px; text-align:left;" |'''2. [[Substitute (Maths)|Substitute]] the numbers into the [[equation]] and [[Solve (Maths)|solve]].'''
<math>f = \tfrac{n}{t}</math>