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AN#Sc#2011#5#Def
Science Topic 5 Definitions 2011
| Question | Answer |
|---|---|
| Compressions | Particles move closer together |
| Rarefactions | Particles spread further apart |
| Longitudinal waves | Waves in the direction traveling |
| Transverse waves | Waves at right angles to the direction of travel |
| Progressive waves | Move energy from one place to another |
| Standing waves | Identical waves in opposite directions |
| Crest | Top of a wave |
| Trough | Bottom of a wave |
| Amplitude | Distance from normal position to crest/trough |
| Displacement | Distance from crest to trough |
| Wavelength | Distance between 2 crests |
| Frequency | Number of waves in a certain time |