Deck 5: Light and Matter

Question 1

Electromagnetic radiation is energy in the form of waves.

Answer 1

True

Question 2

Portions of electromagnetic spectrum that are visible to the human eye are known as visible light energy.

Answer 2

True

Question 3

Light travels in waves known as tangents.

Answer 3

False

Question 4

A wavelength is the distance between any two adjacent peaks or valleys of waves.

Question 5

Frequency is measured in miles per hour.

Question 6

Instead of being inversely proportional, frequency and wavelength are directly proportional.

Question 7

A packet of light is known as a photon.

Question 8

Wavelengths in the electromagnetic spectrum go from highest to lowest, while frequencies go from lowest to highest.

Question 9

The longest wavelengths are radio waves.

Question 10

The infrared region of the electromagnetic has higher energy than the ultraviolet region.

Question 11

The lower the light frequency, the more visible to the eye it is.

Question 12

Light wavelengths are measured in

A) inches
B) feet
C) nanometers
D) decimeters

Question 13

Which of the following light types is the most destructive to human beings?

A) infrared
B) ultraviolet
C) gamma rays
D) light is not destructive

Question 14

The instrument used to measure frequencies of light and quantity of light is known as a

A) flashlight
B) multimeter
C) monochromator
D) spectrophotometer

Question 15

The number of cycles of light that pass a given point in one second is known as the _________ of light.

Question 16

The spectrum of increasing wavelength of electromagnetic radiation in known as the _____ ______.

Question 17

A prism or grating in a spectrophotometer is known as a ______________.

Question 18

Infrared light detectors generally use a _____________ to convert heat into electricity.

Question 19

___________________occurs when the property of color where two objects may appear to be the same color in one type of light but are different in another.

Question 20

A __________ __________ concerts a light beam containing all wavelengths into an interferogram.