Loading presentation...

Present Remotely

Send the link below via email or IM

Copy

Present to your audience

Start remote presentation

  • Invited audience members will follow you as you navigate and present
  • People invited to a presentation do not need a Prezi account
  • This link expires 10 minutes after you close the presentation
  • A maximum of 30 users can follow your presentation
  • Learn more about this feature in our knowledge base article

Do you really want to delete this prezi?

Neither you, nor the coeditors you shared it with will be able to recover it again.

DeleteCancel

Make your likes visible on Facebook?

Connect your Facebook account to Prezi and let your likes appear on your timeline.
You can change this under Settings & Account at any time.

No, thanks

Light & Sound Test Review

No description
by

Katie James

on 25 May 2013

Comments (0)

Please log in to add your comment.

Report abuse

Transcript of Light & Sound Test Review

A Test Review Light & Sound What do we know about light? What happens when light hits an object? What you need to know: There are two types of light:
1. Natural Light
2. Artificial Light Reflection & Refraction Light can be reflected (bouncing off of objects)
Transparent objects: allow most of the light to pass through



Translucent objects: allow some of the light to pass through



Opaque objects: allow none of the light to pass through
- Vocabulary, vocabulary, vocabulary!
- How we use light and sound in everyday life

Your study package will be a very helpful tool. Light travel in a straight path:
The best reflectors are flat,
shiny surfaces. A mirror is a
good example. Light can be refracted (bent) Refraction is the bending of light as it passes from one substance to another White light SOUND - A form of energy that can be heard
- Travels in waves, travels in all directions. Also travels through gases, liquids and solids
- Caused by vibrations (a back and forth motion) Sound can be modified (changed) - The loudness of a sound depends on the size of the vibrations of a sound wave; the smaller the vibrations, the lower the volume
- Volume = the loudness of a sound
- Frequency is the number of waves per second and the pitch of a sound depends on the frequency of the vibrations that are making it.
- The more vibrations, the higher the pitch
- The fewer vibrations, the lower the pitch

Animals that hear sounds at different pitches from humans: Low pitch: High pitch: The Ear Reflecting and Absorbing Sound Reflecting sound: hard, smooth surfaces are the most effective reflectors of sound. Echoes are a result of this reflection.




Absorbing sound: soft surfaces are the most effective absorbing surfaces of sound


Full transcript