Electromagnetic Spectrum and Light

Chapters 17 and 18Review Questions

Color(s) of Light

Coming In

Object Light the object can reflect in

pure sunlight

Color Seen by

an Observer

ROYGBIV V

Color(s) of Light

Coming In

Object Light the object can reflect in

pure sunlight

Color Seen by

an Observer

ROYGBIV

GB

Color(s) of Light

Coming In

Object Light the object can reflect in

pure sunlight

Color Seen by

an Observer

ROYGBIV

R

GB

Color(s) of Light

Coming In

Object Light the object can reflect in

pure sunlight

Color Seen by

an Observer

BIV

R

GB

Color(s) of Light

Coming In

Object Light the object can reflect in

pure sunlight

Color Seen by

an Observer

RO

R

G

Color(s) of Light

Coming In

Object Light the object can reflect in

pure sunlight

Color Seen by

an Observer

YGBIV

Color(s) of Light

Coming In

Object Light the object can reflect in

pure sunlight

Color Seen by

an Observer

OY

R

GB

Color(s) of Light

Coming In

Object Light the object can reflect in

pure sunlight

Color Seen by

an Observer

BIV

ROY

Color(s) of Light

Coming In

Object Light the object can reflect in

pure sunlight

Color Seen by

an Observer

ROYGBIV

R

B

Color(s) of Light

Coming In

Object Light the object can reflect in

pure sunlight

Color Seen by

an Observer

R

GB

A. Radio Waves

B. Infrared Radiation

C. Visible Light

D. Ultraviolet Radiation

E. X-Rays

F. Gamma Rays

Which part of the EM Spectrum has the lowest frequency?

A. Radio Waves

B. Infrared Radiation

C. Visible Light

D. Ultraviolet Radiation

E. X-Rays

F. Gamma Rays

Which part of the EM Spectrum helps skin cells produce vitamin D?

A. Radio Waves

B. Infrared Radiation

C. Visible Light

D. Ultraviolet Radiation

E. X-Rays

F. Gamma Rays

Which part of the EM Spectrum is used to treat cancer?

A. Radio Waves

B. Infrared Radiation

C. Visible Light

D. Ultraviolet Radiation

E. X-Rays

F. Gamma Rays

Which part of the EM Spectrum is primarily heat radiation?

A. Radio Waves

B. Infrared Radiation

C. Visible Light

D. Ultraviolet Radiation

E. X-Rays

F. Gamma Rays

Which part of the EM Spectrum has the lowest energy?

A. Radio Waves

B. Infrared Radiation

C. Visible Light

D. Ultraviolet Radiation

E. X-Rays

F. Gamma Rays

Which part of the EM Spectrum is easily absorbed by bones but not skin?

A. Radio Waves

B. Infrared Radiation

C. Visible Light

D. Ultraviolet Radiation

E. X-Rays

F. Gamma Rays

Which part of the EM Spectrum has the smallest wavelength?

A. Radio Waves

B. Infrared Radiation

C. Visible Light

D. Ultraviolet Radiation

E. X-Rays

F. Gamma Rays

Which part of the EM Spectrum is used to detect tumors in the body?

A. Radio Waves

B. Infrared Radiation

C. Visible Light

D. Ultraviolet Radiation

E. X-Rays

F. Gamma Rays

Which part of the EM Spectrum contains microwaves?

Which of these partially explains why the sky is blue?

A. Small particles in the atmosphere absorb then scatter light waves that have a low frequency.

B. The color of the sky is a reflection of the color of the ocean.

C. Someone threw blue paint into the air and it stuck.

D. Molecules in the atmosphere absorb and scatter light waves with a small wavelength.

Cyan is a primary pigment. What two colors of light are reflected by cyan pigment?

A.A. BlackBlack and White

B. Green and Blue

C. Red and Yellow

D. Red and Blue

E. Green and White

Which two primary pigments combine to produce red?

A. Red and Blue

B. Yellow and Cyan

C. Magenta and Yellow

D. Cyan and Magenta

E. Green and Yellow

How is pure red light different than pure green light?

A. Red light has a longer wavelength

B. Green light has a longer wavelength

C. Blue light has a high frequency

D. Red and Green light make Yellow light

E. Red is a transverse wave and Green is a longitudinal wave.

Which of the color combinations is true for paint?

A. Red + Green = Yellow

B. Cyan + Magenta + Yellow = White

C. Blue + Green = Red

D. Cyan + Magenta + Yellow = BlackBlack

E. Cyan + Magenta = Red

Which of the following diagrams has an object that is opaque?

A. B.

C. D.