Light travels in straight lines until it interacts with something.
What is how light normally travels?
Materials that let some light pass through.
What are translucent materials?
The distance between one crest and the next.
What is wavelength?
A type of wave that requires matter to travel.
What is a mechanical wave?
This part of a wave controls loudness.
What is amplitude?
The bouncing of light off a surface.
What is reflection?
Materials that block all light.
What are opaque materials?
The height of a wave from its resting position.
What is amplitude?
Sound is created by this.
What are vibrations?
This part of a wave controls pitch.
What is frequency?
The bending of light when it moves between materials.
What is refraction?
Wax paper is an example of this type of material.
What is translucent?
A wave with more space between crests has this.
What is a greater (longer) wavelength?
Sound cannot travel through this.
What is empty space (a vacuum)?
Higher amplitude means this.
What is louder sound?
This type of surface reflects the most light.
What are smooth, shiny, light-colored surfaces?
Wood and metal are examples of this type of material.
What is opaque?
Moving your hand more while shaking a rope increases this.
What is amplitude?
Sound travels fastest in this state of matter.
What are solids?
Higher frequency means this.
What is higher pitch?
A pencil looking broken in water is caused by this.
What is refraction?
This describes how light moves through different materials.
What are material interactions?
The line in the middle of a wave that represents no movement.
What is the rest position?
Two factors that affect the speed of sound.
What are temperature and density?
A bass drum produces this type of frequency.
What is low frequency?