Hershel’s Famous Experiement
What did Hershel call the invisible rays that heat up objects?
Calorific Rays
What chemical darkens more when hit by light from the violet end of the spectrum?
Silver chloride
Wavelength and surface/material it hits
What color is the wavelength in the graph?
Red
One way to use infrared imaging is ______goggles.
night
Where was Hershel born?
Germany
what does the prefix ultra mean?
Beyon
Name a kind of invisible electromagnetic energy **HINT** (you heat up food in it)
Microwaves
Is it true that electromagnetic waves always behave differently than sound waves
No
Remote controls send ______ signals to TVs
Infrared
What triangular shape did Hershel use to conduct his experiment?
A Prism
What did Ritter use instead of a thermometer?
he aimed the light onto a special paper that turned black when exposed to light
Is it true that wavelengths NEVER overlap?
Done
Sound required a ______ through which it is transmitted.
Medium
What do wireless internet connections rely on?
Radios or microwaves
What is Hershel’s full name?
Sir Frederick William Hershel
What vitamin is ultraviolet rays similar to?
Vitamin D
Wavelengths range from less than one _______ of a meter to 100 ______
Trillionth, Kilometers
What is the speed of sound of a vacuum in m/s? **HINT** (<1)
0
Wearing night goggles can help detect _______ animals.
Warm-blooded
Infrared can be reflected, ______, or transmitted
Observed
Reducing the brightness of light is similar to ______?
Reducing the intensity of a sound wave
Is it true that ramen noodles take longer to heat up in a microwave than an oven?
Yes
Light is a transverse wave that carries what?
electromagnetic energy
What do astronomers use to detect radio waves?
Radio telescopes