Electricity
What is a build up of electrical charge in an object called?
Static Electricity
Reflect means light bounces when it strikes an object.
Absorb means light goes into an object when it strikes it.
What is the name of something that heat comes from? What is the Earth's biggest one of these?
A heat source. The Sun is the Earth's biggest heat source.
What causes sound?
Sound is caused when something vibrates.
What part of the ear collects the sound?
The Outer Ear
There are 2 types of electrical charge. What are they?
Positive and Negative charge.
What does the word Refract mean?
The way light bends when it enters a different material.
What is the flow of energy between objects called?
Heat
What does the word Volume mean?
How loud a sound is.
What part of the eye does light enter through. This part refracts the light.
The Cornea
What is the path called that charged particles flow around?
Circuit
What is the black opening in the eye called?
The Pupil.
What is the energy that makes particles move?
Thermal Energy
What does Pitch mean?
How high or low a sound is.
What part of the eye sends the message to the brain?
The Optic Nerve
What is the flow of charged particles called?
Electric Current
What do the words Opaque, Tranlucent and Transparent mean?
Opaque lets no light through, Translucent lets some light through and Transparent lets all light through.
What word means how much thermal energy an object has? What tool do we measure this with?
Temperature is measured with a Thermometer.
put these in order, from best to worst, of how well sound travels through these materials.
Gas, Space, Solid, Liquid
What is the Lens? What is it's job?
The lens is the part of the eye that refracts the light so it strikes the back of the eye.
What is an insulator? and give an example. What is a conductor? and give an example.
Insulators do not allow electric current to flow easily (plastic)
Conductors allow electric current to flow easily (copper)
If white light is made of all the colors, explain why a leaf looks green.
The green light is reflected when it strikes the leaf. All the other light is absorbed into the leaf.
What are Conductors and Insulators?
Conductors are materials that heat flows through easily.
Insulators are materials that heat does not flow through easily.
Give 2 examples of what affects the pitch of a sound.
The speed of the vibration, the thickness of an object and the length of an object.
Describe how sound gets from the outer ear to the brain.
The outer ear, eardrum, 3 tiny bones, inner ear, nerve and finally the brain.