Physics GCSE
echoes
What echoes means in Physics GCSE, as defined for AQA.
Definition of echoes
Check what you remember
Read the wording for your board, then hide it and explain echoes in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: AQA
Sound travels to the wall and back, so the distance in the equation is twice the separation.
Topics that use echoes
- Speed (AQA GCSE)
Related terms
- average speed
- constant speed
- distance equation
- distance travelled
- halving the path
- instantaneous speed
- light gates
- measuring distance
Using echoes in the exam
Check the command word and mark scheme for your exact question. After comparing your explanation with the reference, use the term in an answer on the linked topic. This practice does not predict an exam mark.
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