Opaque is something that no light can travel through. Examples: desk, book, human.
100
What is renewable energy? Give 2 examples.
Energy that can be used over and over. Some examples are solar power, wind power, water power (hydroelectric), and geothermal.
200
Give three examples of potential energy.
A book on the top bookshelf, a car that is parked, a roller coaster at the top of the hill.
200
Draw a sound wave and label the amplitude and wavelength.
Amplitude is the tallness and wavelength is the distance from one peak to the next.
200
What is a reflection? Give 2 examples of where you can see your reflection.
When light waves hit an object and bounce back. Examples: mirror or lake
200
What are vibrations?
Sound waves that you can feel.
200
What do light and sound have in common?
They both travel in waves.
300
Give three examples of kinetic energy.
A ball in motion, an arrow being shot, water that is flowing.
300
What types of matter can sound travel through? Give an example of each.
Sound can travel through all three types of matter!
Solid - wall
Liquid - water
Gas - air
300
What is natural light? Give 3 examples.
Natural light is found in things that occur naturally on earth. Examples: sun, lightening, animals, stars
300
What is the difference between transparent and translucent?
Transparent items let all the light go through it. Translucent items only allow some light to go through it.
300
Complete this sentence: (When talking about sound waves)
The _____________ the volume, the ___________ the wave.
The louder the volume, the greater the wave.
or
The quieter the volume, the smaller the wave.
400
Describe how the marshmallow catapult lab tested mechanical energy.
When you load up the marshmallow and pull the spoon back, you have potential energy. Once the spoon was released and the marshmallow went flying, the energy changed to kinetic energy.
400
What is an echo?
A sound reflection. An echo is created when a sound wave hits an object and bounces off of it.
400
What is artificial light? Give 3 examples.
Artificial light is man-made light. Examples: neon lights, lights on technology (phones, tv, computer), glow sticks
400
What is refraction?
Refraction is when light hits an object at an angle and bends. It causes something to look larger, smaller, or bent.
400
DOUBLE JEOPARDY!!!
Explain how there could be potential and kinetic energy in something.
one example: A roller coaster moves up the hill - kinetic energy. When it gets to the top of the hill, the roller coaster stalls and the energy becomes potential. The roller coaster falls down the hill, the energy is back to kinetic energy.
500
DOUBLE JEOPARDY!!
Name 2 animals that use echolocation.
Dolphin, bat, whale
500
What is the difference between pitch and volume?
Pitch refers to whether the note is high or low sounding. Volume refers to how loud or quiet a sound is.
500
How is a shadow created?
A shadow is formed when light strikes and opaque object and the light waves go around the object, thus creating an outline of the opaque object.
500
What are fossil fuels?
Fossils and remains that are burned and used for energy.