Section 1
What type of wave moves the medium at RIGHT angles to the direction in which the wave is traveling
Transverse wave
This type of material allows NO light to pass through
Opaque
What structure of the eye contains rods and cones that are sensitive to light
Retina
This type of motor converts electrical energy into mechanical energy
Electric motors
Energy is defined as what?
The ability to do work!
What are characteristics of waves?
Amplitude, wavelength, frequency
What law states the angle of incidence equals the angle of reflection
Law of Reflection
Which structure of the eye begins to focus light?
Cornea
What is an alternating current
A current that may be constant OR change direction as needed (back and forth)
Chemical, heat, electromagnetic, and nuclear are all forms of energy: TRUE or FALSE
TRUE
The material thru which a wave passes through but does not move the material is known as a
medium
What type of mirror is a flat mirror and produces an image that is right side up and the same size as the original object
Plane mirror
The color part of the eye and a muscle that opens and closes to regulate pupil size, is what eye structure
Iris
Batteries have two metals that we call what? This is not specific metals.
Electrodes
Chemical energy is required to bond atoms together: TRUE or FALSE
TRUE
What is the formula for calculating speed of a wave
Wavelength x frequency (Multiply)
What property describes the bend or change of direction of light
Refraction
What is nearsightedness
When the eye(s) create a blurry vision for someone at a distance (they cannot see things clear far away)
What the a magnetic field?
The region around a magnet that is affected by the magnet
Nuclear energy can have nuclear fission & nuclear fusion: TRUE or FALSE
TRUE
What type of material allows SOME light to pass through but not all.
Translucent
This device separates white light into the other component colors
Prism
What type of energy is associated with movement and position (both kinetic and potential)
Mechanical energy
Joules
Energy types CANNOT be transformed into other types of energy: TRUE or FALSE