Sound
When any object vibrates it causes _______ in the air particles.
What is movement?
Object 2 allows 100% of light to go through
Object 3 allows 0% of light to go through
Which object is opaque? How do you know?
What is object 3? It is opaque because no light passes through.
The number of vibrations an object makes in a certain amount of time. It is measured in Hertz.
What is Frequency?
The back and forth movements of an object. They can be powerful, weak, fast or slow.
What are Vibrations?
When light rays are blocked by an opaque object, this is cast.
What is a Shadow?
Light and sound is a form of this.
What is Energy?
A type of energy made by vibrations.
What is Sound?
Vibrations that make sound are called...
What are Sound Waves?
This material lets some light pass through but light scatters in all directions.
What is a Translucent object?
List three parts of the ear.
What are Outer Ear, Middle Ear and Inner Ear?
Bonus: eardrum
In ______ sound travels the slowest because the molecules are the farthest apart.
What are Gases?
The highness or lowness of a sound.
What is Pitch?
Sound waves keep going until they run out of ____.
What is energy?
Object 1: allows 67% light to pass through
Object 2 allows 100% of light to go through
Object 3 allows 0% of light to go through
Which object is transparent? How do you know?
What is object 2? Transparent objects allow all light to pass through.
What does a prism do to light?
What is a prism refracts light? It separates white light into colors.
Sound travels fastest through what medium (state of matter)?
What is sound travels fastest through solids?
Sound waves that vibrate quicker most likely produce (high or low) sounds.
What are high sounds?