What Does It Mean for Waves to Be in Phase?

[suzycue303]

Homework Statement

If two waves were moving in the same direction and the crests from each wave matched up, these waves would be in phase. True or false?

Homework Equations

The Attempt at a Solution

true?

 

[DaveC426913]

Homework Statement

If two waves were moving in the same direction and the crests from each wave matched up, these waves would be in phase. True or false?

Homework Equations

The Attempt at a Solution

true?

Why do you think so?

 

[suzycue303]

I'm really not sure what it means for waves to be "in phase"

 

[DaveC426913]

I'm really not sure what it means for waves to be "in phase"

Ah. Well that would be a good start. Textbook?