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Created page with "==Key Stage 3== ===Meaning=== A period is the time taken for one complete wave to pass a point. ==Key Stage 4== ===Meaning=== A period is the time taken f..."
==Key Stage 3==
===Meaning===
A [[period]] is the [[time]] taken for one complete [[wave]] to pass a point.
==Key Stage 4==
===Meaning===
A [[period]] is the [[time]] taken for a single [[oscillation]] to occur.
===About Periods===
: [[Period]] may refer to the time taken for an [[oscillating]] [[object]] such as a [[pendulum]] or [[mass]] on a [[Coil Spring|spring]] to make one full [[oscillation]].
: [[Period]] may refer to the [[time]] taken for one [[wave]] to pass a point.
===Equation===
''NB: You do not need to remember this equation but you should be able to find the [[period]] of a [[wave]] using the [[frequency]].''
Period = 1/(Frequency)
<math>T = \frac{1}{f}</math>
Where:
f = [[Frequency]]
T = [[Period|time period]] (the [[time]] it takes for one [[wave]] to pass a point).
===Example Calculations===
{| class="wikitable"
| style="height:20px; width:200px; text-align:center;" |A [[wave]] has a [[frequency]] of 0.2Hz. Calculate how long it takes for one [[wave]] to pass a point.
| style="height:20px; width:200px; text-align:center;" |The E-string on a bass guitar is plucked to produce a [[sound]] with a [[frequency]] of 40Hz. Calculate the time it takes for the E-string to make one full [[oscillation]].
|-
| style="height:20px; width:200px; text-align:left;" |'''1. State the known quantities'''
f = 0.2Hz
| style="height:20px; width:200px; text-align:left;" |'''1. State the known quantities'''
f = 40Hz
|-
| style="height:20px; width:200px; text-align:left;" |'''2. [[Substitute (Maths)|Substitute]] the numbers into the [[equation]] and [[Solve (Maths)|solve]].'''
<math>T = \frac{1}{0.2}</math>
<math>T = 5s</math>
| style="height:20px; width:200px; text-align:left;" |'''2. [[Substitute (Maths)|Substitute]] the numbers into the [[equation]] and [[Solve (Maths)|solve]].'''
<math>T = \frac{1}{40}</math>
<math>T = 0.025s</math>
|}
===Meaning===
A [[period]] is the [[time]] taken for one complete [[wave]] to pass a point.
==Key Stage 4==
===Meaning===
A [[period]] is the [[time]] taken for a single [[oscillation]] to occur.
===About Periods===
: [[Period]] may refer to the time taken for an [[oscillating]] [[object]] such as a [[pendulum]] or [[mass]] on a [[Coil Spring|spring]] to make one full [[oscillation]].
: [[Period]] may refer to the [[time]] taken for one [[wave]] to pass a point.
===Equation===
''NB: You do not need to remember this equation but you should be able to find the [[period]] of a [[wave]] using the [[frequency]].''
Period = 1/(Frequency)
<math>T = \frac{1}{f}</math>
Where:
f = [[Frequency]]
T = [[Period|time period]] (the [[time]] it takes for one [[wave]] to pass a point).
===Example Calculations===
{| class="wikitable"
| style="height:20px; width:200px; text-align:center;" |A [[wave]] has a [[frequency]] of 0.2Hz. Calculate how long it takes for one [[wave]] to pass a point.
| style="height:20px; width:200px; text-align:center;" |The E-string on a bass guitar is plucked to produce a [[sound]] with a [[frequency]] of 40Hz. Calculate the time it takes for the E-string to make one full [[oscillation]].
|-
| style="height:20px; width:200px; text-align:left;" |'''1. State the known quantities'''
f = 0.2Hz
| style="height:20px; width:200px; text-align:left;" |'''1. State the known quantities'''
f = 40Hz
|-
| style="height:20px; width:200px; text-align:left;" |'''2. [[Substitute (Maths)|Substitute]] the numbers into the [[equation]] and [[Solve (Maths)|solve]].'''
<math>T = \frac{1}{0.2}</math>
<math>T = 5s</math>
| style="height:20px; width:200px; text-align:left;" |'''2. [[Substitute (Maths)|Substitute]] the numbers into the [[equation]] and [[Solve (Maths)|solve]].'''
<math>T = \frac{1}{40}</math>
<math>T = 0.025s</math>
|}