Where do light and sound come from?
Name one natural source of sound.
(Answers can be different)
How does light travel from its source?
In a straight line.
Which word means "you can see through it"?
Transparent
What does pitch tell us about a sound?
If it is high or low
Name one natural source of light.
e.g., Sun, stars, lightning)
Name one human-made source of sound.
e.g., a speaker, airplane, mixer
Name two materials that sound can travel through.
Air and water; also some solids
Which word means "blocks light and creates a shadow"?
Opaque
What does volume tell us about a sound?
How loud or quiet it is
Name one human-made source of light.
(Answer: e.g., lamp, flashlight, TV)
True or false: The Sun is a source of light.
True
What happens to light when it bends as it goes from one material to another?
Refraction — light bends
What do we call how loud or quiet a sound is?
Volume
True or false: A whisper has high volume.
False
True or false: The Moon is a source of light. (TRICKY!!)
False — it reflects light)
Give two examples of living things that make sound.
(Answers can be different)
What is dispersion of light? Give a simple example.
Light splitting into colors — example: prism making a rainbow
Light bounces off a surface and creates a _____.
Reflection
What does duration mean for a sound?
How long or short the sound lasts
Look around your classroom. Name one object that reflects light.
(Answer: e.g., mirror, window, shiny desk)
What is vibration and how does it relate to sound?
Vibration is a quick back-and-forth movement; vibrating objects make sound
Explain how the size or shape of an object can affect the sound it makes.
Size/shape affect vibration and resonance; larger or differently shaped objects can change pitch, volume, or tone
Describe three ways light can behave
Travel in straight lines; reflect/bounce; refract/bend; disperse/split into colours; be absorbed or stopped
Give one example of a high-pitch sound and one example of a low-pitch sound.
(May be different)
Explain the difference between a natural light source and a human-made light source.
Natural = from nature like the Sun; human-made = made by people like a lamp