Physics 1139 Test

The science of light and vision is called ________

optics

Draw a ray diagram showing Convex lens with object beyond the near focus.

#37 on the Self Test

Know how to work problem like Page L #49 in PACE

1/f = 1/p + 1/q

Know how to work problem like Page L #50 in Pace

1/f = 1/p + 1/q

________ is the form of radiant energy created by God.

Light

Know how to work problem like Page L #46 in PACE

MX=q/p

The percentage of light reflected by surface is its _______

albedo

A refracted light wave will _____ change its speed.

always

A refracted light wave will _______ bend.

always

Reflection will ____ cause a light wave to change direction.

always

A surface that totally absorbed all light would be _______.

black

A surface that reflected some light and absorbed other light would be ______.

colored

As the index of refraction increases, the speed of light in a substance _______.

decreases

Know how to work problem like Page T #51

f number = focal length/aperture (higher number is dimmer)

Know how to work problem like Page T #50 in Pace

f number = focal length/aperture (lower number is brighter)

Roger Bacon

first suggested the use of spectacles

Robert Hooke

first used the compound microscope in scientific study

Galileo Galilei

first used the telescope in the study of astronomy

Alhazen

improved the pinhole camera by adding a convex lens

As the angle of incidence increases for a given ray, the angle of reflection _______.

increases

John Dollond

invented the achromatic lens

Christian Huygens

made the first long refracting telescope

A surface that totally reflected all ight would be _______.

white

A surface that totally transmitted all light would be _______.

transparent

Willebrord Snell

discovered the law of refraction

Isaac Newton

discovered the spectrum; invented the reflector telescope

Anton van Leeuwenhoek

made the first simple lens microscopes

Jean Foucault

measured the speed of light in a vacuum

Reflection will ______ cause a light wave to change speed.

never

"The angle of incidence equals the angle of reflection" is the law of _______.

reflection

A refracted wave will ____ increase its speed.

sometimes

Hans Lippershey

probably invented the first telescope