A review for the quiz Light Waves

Sound waves from a radio generally travel in which medium? air light earth water

Our eyes can detect light only within a range of _____ called visible light. frequencies mediums speeds periods  

The speed of a sound wave depends on wavelength. depends on amplitude. depends on the medium. None of the above

Longitudinal waves travel quickly in a _____ because the molecules are closely packed and physically bonded together. liquid solid gas None of the above

The differences in color in visible light, such as those in a rainbow, are caused by differences in amplitude. medium. speed. frequency.

Light waves require a medium. cannot travel through liquids. cannot travel through solids. are electromagnetic waves.

Light waves are transverse waves. rotating waves. longitudinal waves. circular waves.

The color of light is determined by the _____ of the light waves. medium frequency speed amplitude

Which type of electromagnetic waves has the highest energy? gamma rays infrared ultraviolet light microwaves

Which type of electromagnetic radiation is used to kill cancer cells? microwaves ultraviolet rays gamma rays sunlight

Radar works by sending a signal out from an air-traffic control tower that is analyzed by a Doppler scanner on the ground. reflected off a plane back to the control tower. increased in intensity as it passes through the atmosphere. scanned and analyzed by a receiver on board an airplane.

The color that an object appears to be depends on the angle at which visible light is reflected off the object. use of additive rather than subtractive colors. wavelengths of visible light that reaches your eyes. speed with which visible light reaches it.

When light moves from a material in which its speed is higher to a material in which its speed is lower, it is bent toward the normal. reflected off the boundary. bent away from the normal. changed into a virtual image.

Light rays that pass through a lens change direction because of internal reflection. they are refracted. light is broken up into many different colors. virtual images always appear slightly larger than real images.

Light demonstrates wave characteristics when it is reflected. diffracted. refracted. All of the above

Light demonstrates particle characteristics when it knocks electrons off a metal surface. forms standing waves. passes through a narrow opening. All of the above

As the frequency of light waves increases, the energy increases. the energy stays the same. the energy decreases. the wavelength increases.

Light rays reflecting off a rough surface reflect diffusely. at all angles. at a single angle. None of the above

The law of reflection says the angle of incidence is _____ the angle of reflection. greater than equal to less than None of the above

When you look in a convex mirror, the image appears smaller than it really is. larger than it really is. lighter than it really is. darker than it really is.

Which statement about a diverging lens is correct? It bends light inward and can create either a virtual or a real image. It bends light inward and can only create a real image. It bends light outward and can create either a virtual or a real image. It bends light outward and can only create a virtual image.  

Light is composed of waves and particles called: electrons photons quarks waves

The visible spectrum of light from the longest to shortest wavelength is: violet, indigo, blue, green, yellow, orange, red red, orange, yellow, green, blue, indigo, violet infrared, ultraviolet, gamma, x-rays, microwaves green, orange, red, violet

A magnifying glass is an example of a: convex lens prism concave lens convex mirror

Convex lenses converge light rays to a: real image focal point focus virtual image

An example of a diverging lens that spreads light rays is the: convex lens converging lens concave lens prism

A survivor from a shipwreck sees an image of a fish in the water A survivor from a shipwreck sees an image of a fish in the water. To catch it with her spear, she must aim above the image of the fish aim at the image of the fish aim below the image of the fish aim behind the fish

When the crests of one wave overlap the crests of another wave or wave, this occurs diffraction constructive interference destructive interference resonant frequencies

An echo is the result of a reflected sound wave refracted sound wave diffracted sound wave dispersed sound wave

What happens to a wave when it is refracted? It is bent It is reflected It is diffracted It is radiated

optics convex image convergent object divergent concave   ____ 31. The study of how light behaves. ____ 32. A lens or mirror that is bigger in the middle. ____ 33. light rays that spread apart ____ 34. Where your eyes think something is. ____ 35. Light ray that come together. ____ 36. What you are actually looking at. ____ 37. A lens or mirror that is bigger at the ends.

____ 40. from the normal to the incoming ray. angle of reflection Mirror lens angle of incidence focus   ____ 38. a line drawn perpendicular to the surface of a mirror or lens ____ 39. An optical device that works by refraction to bend light. ____ 40. from the normal to the incoming ray. ____ 41. from the normal to the outgoing ray ____ 42. Where all parallel rays come together ____ 43. an optical device that works by reflection

____ 45. all light: visible and invisible photon EM Spectrum prism energy level light   ____ 44. An orbit of electrons. To move from low to high requires energy. ____ 45. all light: visible and invisible ____ 46. used to separate white light into its colors ____ 47. a single particle or packet of light ____ 48. a wave that can travel through a vacuum

Arrange the Electromagnetic Spectrum from low photon energy to high photon energy Gamma Rays X-rays Infrared Ultraviolet Microwaves Visible Light Radio Waves   ____ 49. Lowest Photon Energy ____ 50. ______ ____ 51. ______ ____ 52. ______ ____ 53. ______ ____ 54. ______ ____ 55. Highest Photon Energy

Convex and Concave Lens

Convex and Concave Mirrors

Primary Colors of Light

Total internal Refraction

Mirage- Optical Illusions two opposing parabolic mirrors

Fun with Refraction and Reflection