🔍 Key Concepts

• Wave period as a measure of time between crests • Difference between period and frequency in waves • Basic parts of a wave: crest and trough

💭 Think About

• Which of these terms specifically refers to a time interval rather than a position or a rate? • How are period and frequency related in wave motion (think: one is in seconds, one is in cycles per second)? • Which option names a point on the wave, and which names the time between repeating points?

✅ Before You Answer

• Identify which choice refers to a time measurement (usually in seconds). • Eliminate any term that describes a location on the wave (like top or bottom). • Make sure you’re not mixing up rate (how often something happens per second) with how long one cycle takes.