What sound is that?
Which sound has a higher pitch? Bird or dog
Bird
reflection
Which of the following sounds would have the highest volume?
Guitar, Whisper, Fire Siren, Dog bark
Fire Siren
no light can pass through this object
opaque
How high or low a sound is
pitch
Which sound is louder to our hears?
Bike bell-50 decibels
Fire Truck-90 decibels
Office-40 decibels
Fire Truck
A pencil in water is an example of which property of light?
refraction
Sound is a type of energy that travels in waves caused by _______________.
vibrations
all light passes through
transparent
The loudness of a sound
volume
What is sound measured in?
Decibels
Would you be able to see a reflection on a lake during a windy day? Why or why not?
No, it would not be smooth enough
Stewart has a balloon, a string and a glass of water. Through which object can sound travel the slowest?
Balloon
The bouncing of light off a smooth surface
Reflection
The number of vibrations that occur in a certain time
Frequency
Which would have a higher frequency? Guitar or a baby crying?
Baby Crying
Why do lemons look yellow?
They reflect yellow light
Which type of medium does sound travel the fastest in? Solid, liquid or gas?
Solid
A glass object that bends light causing a rainbow
prism
The bending of light
refraction
A straw flute sounds pretty low. What kind of pitch and frequency does it have and how long is the straw?
Low pitch, low frequency, long straw
What does a prism do to light that causes it to produce a rainbow?
refracts light
why can't we hear in space?
There is not an atmosphere which means nothing for the waves to travel in!
A lens that is thinner in the middle and helps to see far away
concave
A lens that focuses close up and is thicker in the middle
Convex