Energy
What is Potential Energy? What is Kinetic Energy?
Potential Energy- energy that is stored. (not moving)
Kinetic Energy- energy of motion.
What is light energy?
Light energy- is energy from the sun or another source that we can see.
What is sound energy?
Sound energy- is the energy produced by vibrating objects.
What is heat (thermal) energy?
Heat (Thermal) Energy- is the heat made when molecules move.
What is electrical energy?
Electrical Energy- is a form of kinetic energy produced by moving electrical charges.
What is Mechanical Energy?
Mechanical Energy- is the total potential and kinetic energy that is used during an action.
What does Translucent mean?
Translucent- is an object that is cloudy and only allows part of the light to pass through.
What is Amplitude? What is Wavelength?
Amplitude- determines the loudness or volume.
Wavelength- is the distance between wavelengths.
What happens to the object when the molecules are moving super fast?
The object heats up.
What are 3 examples of electrical energy?
Electrical Eel Toaster
Phone Wind Turbine
Battery Solar Cell
Vacuum
Lightening
What are 3 renewable energy sources?
1. Sunlight
2. Water
3. Wind
What does Transparent mean?
Transparent- means that light can pass through to see the object on the other side.
What is a Crest? What is a Trough?
Crest- is the highest point of the wave.
Trough- is the lowest point of the wave.
What happens to the object when the molecules are moving slow?
The object stays cold.
What object uses light energy and converts it into electrical energy?
solar cell
What are 2 types of non-renewable energy sources.
1. Fossil-fuel gas
2. Coal
What does Opaque mean?
Opaque- is an object that light cannot pass through.
What happens with high pitch and low pitch?
What happens with loud sounds and quiet sounds?
High pitch means small wavelength.
Lower pitch means large wavelength.
When a sound is loud it creates a higher amplitude which heightens the crest.
When a sound is quiet it creates a lower amplitude which lowers the crest.
Fireplace
Heater
Dryer
In your home, how can you tell if something uses electrical energy?
It is usually powered by a battery or you plug it in into an electrical outlet.
What is the term for when one object runs into another and energy is transferred?
Collision
What does refraction, reflection, and absorption mean?
Refraction- light passing through an object and medium to cause the object to look bent.
Reflection- light bouncing off an object.
Absorption- absorbs light energy.
Number 15
Label the parts of the sound wave.
Answer: Draw on the board and label.
The sun.
Draw an example of an object that uses both electrical energy and heat energy.
Answer: Draw on the board.