Light
What is light energy that helps us see called?
Visible light
What causes sound?
Vibrations
What does the root “tele–” mean in “telephone” or “television”?
Far or distant
How are light and sound alike?
Both travel in waves
What does “actions speak louder than words” mean?
What you do matters more than what you say
What happens when light bounces off a surface?
Reflection
What part of the body helps us hear sound waves?
The ear
What does “auditory” mean?
Related to hearing
How are light and sound different?
Light can travel through space, sound needs matter
What does “his bark is worse than his bite” mean?
Someone sounds mean but isn’t really dangerous
What tool bends light to help us see things up close?
A lens
What word describes how high or low a sound is?
Pitch
What does “transmit” mean?
To send or pass along
Compare Samuel Morse’s telegraph to Alexander Graham Bell’s telephone.
Telegraph sent messages with codes; telephone sent voices
What does “you hit the nail on the head” mean?
You said exactly the right thing
What colors make up white light?
All colors of the rainbow (ROY G BIV)
What happens when vibrations are strong or weak?
Strong = loud sound, weak = soft sound
What does “frequency” mean?
How often a vibration happens
Compare how a convex lens and a concave lens bend light.
A convex lens bends light rays inward to a single point, while a concave lens bends light rays outward, spreading them apart.
What is the difference between literal and figurative language?
Literal means exactly what it says; figurative means something deeper
Why does a shadow form?
When light is blocked by an object
What travels faster — sound or light?
Light
What is a “vibration”?
A back-and-forth movement that creates sound
Compare how humans produce voice vs. musical instruments making sound.
Both use vibrations, but the source is different (vocal cords vs. strings/air)
Give an example of a figurative saying from the unit and explain it.
(Open-ended – e.g., “actions speak louder than words”)