You are Here: Home >< A-levels

# Physics as question - waves Watch

1. Hi, I wanted to know how can you determine what direction a point on the wave is travelling when given a snapshot of the wave. my book says something about the displacement being greater on the left side of the point than the actual therefore moving up and if smaller then moving downwards but i don't really understand what it means by that. if you have any understanding please help
Hi, I wanted to know how can you determine what direction a point on the wave is travelling when given a snapshot of the wave. my book says something about the displacement being greater on the left side of the point than the actual therefore moving up and if smaller then moving downwards but i don't really understand what it means by that. if you have any understanding please help
Firstly you need to know that the wave is moving horizontally but the particle is moving vertically as the amplitude in the same plane as it movement changes.
So if the amplitude of the wave to the left of the particle is larger the particle is about to go up, if the amplitude of the wave to the left of the particle is smaller then the particle is about to go down.
3. (Original post by Dowel)
Firstly you need to know that the wave is moving horizontally but the particle is moving vertically as the amplitude in the same plane as it movement changes.
So if the amplitude of the wave to the left of the particle is larger the particle is about to go up, if the amplitude of the wave to the left of the particle is smaller then the particle is about to go down.
Thanks that cleared quite a bit up, just wanted to know is it directly to the left of the particle, or half of the wavelength. any specific distance away from the particle
Thanks that cleared quite a bit up, just wanted to know is it directly to the left of the particle, or half of the wavelength. any specific distance away from the particle
A question will give you a specific distance, it depends on the position of the particle to start with.

But if there is no specific distance then take it as directly left of the particle.
5. (Original post by Dowel)
A question will give you a specific distance, it depends on the position of the particle to start with.

But if there is no specific distance then take it as directly left of the particle.
ok thanks

TSR Support Team

We have a brilliant team of more than 60 Support Team members looking after discussions on The Student Room, helping to make it a fun, safe and useful place to hang out.

This forum is supported by:
Updated: June 7, 2016
Today on TSR

### Medicine offers rolling in

Which unis have sent theirs?

### I hate Christmas

Discussions on TSR

• Latest
• ## See more of what you like on The Student Room

You can personalise what you see on TSR. Tell us a little about yourself to get started.

• Poll

## All the essentials

### Student life: what to expect

What it's really like going to uni

### Essay expert

Learn to write like a pro with our ultimate essay guide.

### Create a study plan

Get your head around what you need to do and when with the study planner tool.

### Resources by subject

Everything from mind maps to class notes.

### Study tips from A* students

Students who got top grades in their A-levels share their secrets

## Groups associated with this forum:

View associated groups
Discussions on TSR

• Latest
• ## See more of what you like on The Student Room

You can personalise what you see on TSR. Tell us a little about yourself to get started.

• The Student Room, Get Revising and Marked by Teachers are trading names of The Student Room Group Ltd.

Register Number: 04666380 (England and Wales), VAT No. 806 8067 22 Registered Office: International House, Queens Road, Brighton, BN1 3XE

Reputation gems: You get these gems as you gain rep from other members for making good contributions and giving helpful advice.