Light #1
Light #2
Sound #1
Sound #2
Review
100
Light travels this way.
What is a straight line
100

When light is transmitted through an object

Transparent

100
All sounds are made from these - they enter our ear and we hear the sound.
What are vibrations?
100
White light is made of...
What is all colours?
100

This travels fastest: light or sound

Light

200
This will cause a rainbow
What is water droplets in the sky? 
200

When light makes the object appear bent 

Refracted 

200

How do we measure a sound wavelength?

From compression to compression

200

Which transmits sound the best and why? Solid, liquid, or gas? 

A solid because the molecules are tightly packed together which allows vibrations to bounce off of each other 

200

You wear these to protect you eyes from light and your skin from light.

What are sunglasses and sunscreen

300
You can hold up this plastic or glass pyramid- shaped object to the sun, to see an example of refraction. 
What is a prism? 
300

Give an example of something that reflects light

Mirror or Aluminum 

300

The loudness or softness of sound.

What is amplitude?

300

High pitch = ________ frequency = ________ vibrations 

High frequency

Fast Vibrations 

300

What is a dependent variable

what is being measure or tested in an experiment 

400

Light travels in waves that move up and down is called 

Transverse Waves

400

This color has the longest wavelength? Which has the shortest?

Red - longest 

Violet - Shortest 

400
The highness or lowness of sound
What is pitch?
400

Low pitch = ____________ frequency = ___________ vibration 

Low frequency 

Slow vibration 

400

What is translucent?

What is opaque?

Light partially travels through an object

Light is absorbed into an object 

500

When light bends such as eye glasses or through water 

What is refraction?

500

Shorter wavelengths have ___________ energy

Longer wavelengths have ____________ energy

More energy

Less energy

500
How we measure sound.
What are Hertz
500
The number of waves that move past a certain point at a certain time is called 

Frequency 

500
What is echolocation?

The use of sound waves in order to help a whale locate food