Electromagnetic Spectrum
Sound
Light
Color
Nature of Science
100
True or False:
Light is an electromagnetic wave
True- it is the visible light spectrum, the only electromagnetic wave our eyes can detect!
100
Sound is produced by ___________
Vibrations
100
True or False:
Light Requires a medium to travel through
False: Light CAN travel through a vacuum
100
If yellow and orange wavelengths of light are shone on an orange object, what color(s) of light will bounce off?
Orange
100
True or False:
We complete multiple trials to see if our data is accurate and reliable.
True
200
Which of the electromagnetic waves from the list has the highest energy? Microwaves, Infrared waves, Visible Light waves, or Ultraviolet waves?
Ultraviolet waves.
200
Why is it that we see lightning before we hear thunder?
The speed of light is faster than the speed of sound
200
Draw a diagram of how light waves look when they are refracted as they enter a new material.
The light bends as it enters a new material!
Draw picture on board
200
What color do red fish appear to be deep in the ocean and why?
Black because red wavelengths of light become absorbed.
200
Ryan wants to test how different materials affect the speed of sound traveling through them? What is the dependent variable in this experiment?
The speed of sound:
Dependent Variable = What you measure!
300
What color of the visible light spectrum has the highest frequency and which color has the lowest frequency?
High frequency = violet/purple
Low frequency = red
300
Knowing how sound waves travel through materials: List the states of matter in order from slowest to fastest
gas, liquid, solid
300
What light interaction is this image showing?
Reflection
300
Which color objects would reflect all light that strikes it?
White objects
300
Anna wants to test how much white light is absorbed by different colors of paper. She will place different color sheets of paper that are the same size in the same location for the same amount of time.
Why would she keep everything the same, but the color of the paper?
Controls: To make sure the only thing being measured is the amount of absorption.
400
Which form of electromagnetic energy has the shortest wavelength? What does this mean for the frequency?
Gamma Rays
High Frequency
400
Can you hear an explosion in space? Why or why not?
No because sound cannot travel through a vacuum- no medium in space!
400
Knowing how light waves travel through materials: List the states of matter in order from slowest to fastest
solid, liquid. gas
400
Blue and red light strike the surface of a glass. Only blue light travels through the glass. Using scientific vocabulary, what happens to each of the colors?
Blue light is transmitted and red light is absorbed
400
Anna wants to test how much white light is absorbed by different colors of paper. What is the independent variable in her experiment?
The different colors of paper: Independent variable = what is changed!
500
How does frequency relate to wavelength?
As frequency increases, wavelength decreases.
ex. high frequency = short wavelength
low frequency = long wavelength
500
Which sound wave would travel at the fastest speed and why?
A. Sonar technology in the ocean to detect a sunken ship
B. Echolocation used by a bat to find its prey
C. Lightning striking in the sky
D. An earthquake shaking the ground
D
Sound waves travel the fastest through solids!
500
How are we able to see this jeopardy from the projector in the classroom on the screen? Use science vocabulary.
The light from the projector hits the screen and is reflected back into our eyes!
500
When white light travels through a prism, it separates into different colors. Why does this happen?
the colors have different wavelengths or frequencies
500
Ryan wants to test how different materials affect the speed of sound traveling through them? He does the experiment in the same size room. using the same type of speaker and sets it at the same volume.
Why will Ryan use different types of materials in his experiment?
To measure differences in the speed of sound