Final Exam Unit 4 and 5 Exam

Which statement correctly compares radio waves and microwaves?

• Radio waves have longer wavelengths and higher frequencies than microwaves.
• Radio waves have shorter wavelengths and higher frequencies than microwaves.
• Radio waves have longer wavelengths and lower frequencies than microwaves.
• Radio waves have shorter wavelengths and lower frequencies than microwaves

Which statement correctly compares infrared light to ultraviolet light?

• Infrared light has a lower frequency and longer wavelength than ultraviolet light.
• Infrared light has a lower frequency and shorter wavelength than ultraviolet light.
• Infrared light has higher radiant energy but a shorter wavelength than ultraviolet light.
• Infrared light has a higher frequency and longer wavelength than ultraviolet light.

Which statement correctly explains refraction?

• Light speeds up as it passes from air to water, causing an interruption in the light ray that creates the image.
• Light slows down as it passes from air to water, and this causes the object to appear curved.
• Light slows down as it passes through objects and causes them to appear to be disconnected.
• Light bends as it passes at an angle from one medium into another, causing the image to appear bent.

Lenses can be found in a variety of objects. Which example does not contain a lens?

• a diving mask
• an electron microscope
• night vision goggles
• a smart phone

What do sound waves, light waves, and ocean waves all have in common?

• They are all electromagnetic waves
• they all transfer energy
• they all require a medium to travel through
• They are all mechanical waves

Which part of the electromagnetic spectrum is divided into seven ranges of wavelengths and is the part visible to the human eye?

• visible light
• infrared light
• tlementary waves
• television waves

Which type of waves do not require a medium to travel through?

• mechanical waves
• electromagnetic waves
• sound waves
• surface waves

What are the light rays doing in this lens?

• Interfering
• converging
• diverging
• reflecting

Which Wave has a higher frequency?

• they have the same
• neither of them
• wave 1
• wave 2

Which Wave has a longer wavelength?

• they have the same
• neither of them
• wave 1
• wave 2