IPC / Unit 9 Pratice Test Review

real

Definition: If a convex lens creates a ___ image, the object is two or more focal lengths away from the lens. Terms: - real - virtual

particle

Definition: The ___ theory of light is supported by the photoelectric effect, refraction, and reflection. Terms: - electromagnetic - particle

electromagnetic

Definition: ___ waves transfer energy from a vibrating electric field to a vibrating magnetic field. Terms: - electromagnetic - electrical

microwave

Definition: ___________ waves are used in cell phone technology. Terms: - radio - microwave

x-rays

Definition: ____________ are used in the medical imaging of bones and organs. Terms: - x-rays - gamma rays

visible light

Definition: ____________ waves are responsible for different colors. Terms: - ultraviolet - visible light

infrared

Definition: ____________ waves are used to see at night. Terms: - visible light - infrared

ultraviolet

Definition: _____________ rays are used to sterilize medical equipment. Terms: - ultraviolet - gamma

radio

Definition: _____________ waves are low-frequency electromagnetic waves that carry the least energy. Terms: - microwave - radio

gamma

Definition: ______________ rays have the most energy in the electromagnetic spectrum. Terms: - ultraviolet - gamma

convex

Definition: a lens that is thicker in the middle than at its edges Terms: - real images - virtual images - photon - cones - rods - photoelectric effect - refracting - reflecting - concave - convex - lens - big bang theory - hubble's law

concave

Definition: a lens that is thin in the middle and thick at the edges Terms: - real images - virtual images - photon - cones - rods - photoelectric effect - refracting - reflecting - concave - convex - lens - big bang theory - hubble's law

photoelectric effect

Definition: a phenomenon that occurs when electrons are ejected from a piece of metal after light has been shined onto the metal surface Terms: - real images - virtual images - photon - cones - rods - photoelectric effect - refracting - reflecting - concave - convex - lens - big bang theory - hubble's law

reflecting

Definition: a telescope requires the use of a concave mirror and convex lens to collect and focus light from distant objects Terms: - real images - virtual images - photon - cones - rods - photoelectric effect - refracting - reflecting - concave - convex - lens - big bang theory - hubble's law

refracting

Definition: a telescope that requires a convex lens to gather and focus light that reflects off of distant objects Terms: - real images - virtual images - photon - cones - rods - photoelectric effect - refracting - reflecting - concave - convex - lens - big bang theory - hubble's law

lens

Definition: a type of transparent material that has one or two curved surfaces Terms: - real images - virtual images - photon - cones - rods - photoelectric effect - refracting - reflecting - concave - convex - lens - big bang theory - hubble's law

rods

Definition: cells in the retina that are sensitive to dim light Terms: - real images - virtual images - photon - cones - rods - photoelectric effect - refracting - reflecting - concave - convex - lens - big bang theory - hubble's law

cones

Definition: cells in the retina that help to distinguish between colors Terms: - real images - virtual images - photon - cones - rods - photoelectric effect - refracting - reflecting - concave - convex - lens - big bang theory - hubble's law

concave

Definition: curves inward Terms: - convex - concave

convex

Definition: curves outward Terms: - convex - plane

real images

Definition: formed when light rays converge to form an image Terms: - real images - virtual images - photon - cones - rods - photoelectric effect - refracting - reflecting - concave - convex - lens - big bang theory - hubble's law

convex

Definition: makes images that are smaller than their objects Terms: - concave - convex

plane

Definition: makes images that are the same size as their objects Terms: - plane - convex - concave

virtual images

Definition: produced from reflected light that is perceived by the brain as coming from a real object, even though the object is not real Terms: - real images - virtual images - photon - cones - rods - photoelectric effect - refracting - reflecting - concave - convex - lens - big bang theory - hubble's law

concave

Definition: produces real images Terms: - convex - concave - plane

plane and convex

Definition: produces virtual images Terms: - plane - convex - concave

plane

Definition: reverses images left to right; has a flat, smooth, and reflective surface Terms: - convex - concave - plane

big bang theory

Definition: states that a colossal explosion took place long ago, giving rise to the universe Terms: - real images - virtual images - photon - cones - rods - photoelectric effect - refracting - reflecting - concave - convex - lens - big bang theory - hubble's law

hubble's law

Definition: states that the farther away a galaxy is from the Earth, the faster it moves away Terms: - real images - virtual images - photon - cones - rods - photoelectric effect - refracting - reflecting - concave - convex - lens - big bang theory - hubble's law

photon

Definition: the basic particle of light Terms: - real images - virtual images - photon - cones - rods - photoelectric effect - refracting - reflecting - concave - convex - lens - big bang theory - hubble's law

milk

Question: Milk has an index of refraction of 1.3 and butter has an index of refraction of 1.4. Through which material will light move faster? Terms: - butter - milk

red, blue, green

Question: What are the primary colors of light? Terms: - red, blue, green - red, blue, cyan

yellow, cyan, magenta

Question: What are the primary colors of pigments? Terms: - yellow, cyan, magenta - yellow, blue, red

convex

Question: Which type of lens always produces a virtual image? Terms: - concave - convex

real

Term: If a convex lens creates a ___ image, the object is less than one focal length away from the lens. Definition: - real - virtual

toward

Term: If an object in space is blueshifted, then that object is moving ___ the observer. Definition: - toward - away from

away from

Term: If an object in space is redshifted, then that object is moving ___ the observer. Definition: - away from - toward

away from

Term: Scientists believe the universe is expanding because most space objects appear to be moving ___ the Earth. Definition: - away from - toward

wave

Term: The ___ theory of light is supported by the Doppler effect, refraction, and reflection. Definition: - particle - wave

ultraviolet

Term: ______________ rays are used to find fingerprints at crime scenes. Definition: - infrared - ultraviolet