true or false
the frequency does not change when a moving loud object goes over you
true but appears to change
light
the natural agent that stimulates sight and makes things visible
give a real life example using a animal
creative response
is light the fastest traveling thing known to man?
yes
can sound also be known as vibrations?
yes
free
woohoo good choice!
sound
vibrations that travel through the air or another medium and can be heard when they reach a person's or animal's ear
give an example without using running or flying
cars, bikes, subway
are you a morning person or a night owl
there is no wrong answer
What is the correct scientific term for pitch?
frequency
vibrations are sounds
NO! sounds are vibrations
Doppler effect
The Doppler Effect is a perceived change in frequency (pitch for sound) (color for light)of a wave. The Doppler Effect in action causes the distance between the thing creating a wave and whatever is measuring (seeing or hearing) the wave.
A toddler crying in the forest when there is a monkey in the trees sitting
is this considered the Doppler effect? Why or why not?
this is not because the baby (sound creator) is not in motion nor is the baby
What causes a light wave?
as light passes across the boundary between two media
What are the units of frequency?
hertz
a hippo is going for a swim and splashing water all over people. The people are making loud noises!
Does this show the Doppler effect
No! this is because the hippo is in motion but is not making sound. And the people are not in motion and are making sound. The Animal would have needed to make noice for this to work.
waves
a wave is a propagating dynamic disturbance of one or more quantities, sometimes as described by a wave equation. In physical waves, at least two field quantities in the wave medium are involved.
give an example of the Doppler effect in space
a person in space not in motion while a shooting star goes past
remember there is not sound in space
What exactly is light?
a form of electromagnetic radiation with a wavelength which can be detected by the human eye
what times of waves are sound waves
longitudinal waves
zara is riding her bike and is out of breath, she is making a sound. Izzy is on her scooter not in motion laughing at her across the street, is this the Doppler effect why?
yes
vibration
Vibration, periodic back-and-forth motion of the particles of an elastic body or medium, commonly resulting when almost any physical system is displaced from its equilibrium condition
make an example of the Doppler effect, explain, and show the outcome or difference when seeing or hearing while the object is moving towards you vs. behind you
be creative
how do colors tell what direction meteors and stars are going in
if it is coming towards earth it is blue with shorter waves
if its red its going away from earth and has longer waves
what is the opposite of longitudinal waves
transverse waves