Energy
Energy cannot be ____________ or ______________.
created, destroyed
Explain the energy conversion that happens while playing the guitar
___________---->___________---> sound energy
chemical potential energy----->kinetic energy------------>sound energy
What is refraction?
The bending of light at the boundary of two mediums
What is a prism? You can draw
A transparent glass or plastic object with smooth, flat sides that can refract light
Conduction, Convection, Radiation
What is energy?
The ability to do work
Explain the energy conversion that occurs when listening to music from a speaker
____________---->______________
electrical energy----->sound energy
Why does refraction occur?
The speed of light changes as it enters a different medium
What is dispersion?
The breaking up of white light into different colors
What is an example of conduction?
touching something warm, a pot on a stove heating up, a spoon getting warm over a match....
What is the change of energy from one form to another called?
energy conversion
Explain the energy transfer that occurs when watching a Youtube video on a computer
______---->_________+__________+__________
electrical energy--->light energy+sound energy+heat energy
How is a lens different from a window?
A lens is a carefully molded/made piece of glass or plastic that refracts light on purpose to create a different (distorted) image
Why does dispersion occur through a prism?
Different colors travel at different speeds-----> different colors refract (bend) at different angles
Why is you hand hotter if you put it on top of a fire instead of next to a fire?
Hot air has a lower density so it rises straight up during the process of convection
ex- candles, wood, batteries, food....
Explain the energy conversion that takes place in a battery powered alarm clock when it rings
chemical potential energy------>sound energy
Why do swimming pools look shallower (not deep) than they actually are?
Light is being refracted as it moves from one medium (water) to another (air)
What is the slowest color?
Violet
What is an example of radiation heat transfer?
heat from the sun, sitting next to a fire, a heater in your house....
Name 6 different kinds of energy
Light energy, heat energy, sound energy, electrical energy, kinetic energy, potential energy
Explain the energy conversion that takes place when someone is singing
chemical potential energy---->kinetic energy---------->sound energy
Give 4 examples of objects that use lenses
magnifying glass, microscope, telescope, camera, eyeglasses,
What is the order of colors we see in a rainbow, from fastest to slowest?
Red, Orange, Yellow, Green, Blue, Indigo, Violet
Explain how we can see the three different types of heat transfer while boiling a pot of water over a campfire
Conduction- Pot gets hot from being on the fire
Convection- Air above the fire is hot
Radiation- Air next to fire is hot