Chemistry Assignment

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Science

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Need help with chemistry assignment. Most of them are multiple choice and they can all be found in the attachment.

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Quiz Q3 Which of these is not a characteristic of light? Wavelength Frequency Energy Amplitude Mass Q7 Which of the following is/are true when comparing infrared light with visible light? Infrared light has a longer wavelength than that of visible light. Infrared light has a lower frequency than that of visible light. Infrared light has a lower energy than that of visible light. All of these None of these Q8 Wavelength of light is _____. (Is that correct?) proportional to its frequency and energy inversely proportional to its frequency and energy proportional to its frequency and inversely proportional to its energy inversely proportional to its frequency and proportional to its energy independent of its frequency and energy Q9 Energy of light is _____. (Is that correct?) proportional to its frequency and wavelength inversely proportional to its frequency and wavelength proportional to its frequency and inversely proportional to its wavelength inversely proportional to its 9frequency and proportional to its wavelength independent of its frequency and energy Q10 Arrange these spectral regions in order of increasing wavelength (Infrared, Radio waves, Ultraviolet, Visible). Radio waves < Infrared < Visible < Ultraviolet Radio waves < Visible < Infrared < Ultraviolet Ultraviolet < Infrared < Visible < Radio waves Ultraviolet < Visible < Infrared < Radio waves Infrared < Radio waves < Ultraviolet < Visible Q11 Which of these characteristics of light is responsible for determining its color? Magnetic component Electrical component Speed Amplitude Wavelength Q12 Arrange these spectral regions in order of increasing energy (Infrared, Microwaves, Ultraviolet, Visible). Microwaves < Infrared < Visible < Ultraviolet Microwaves < Visible < Infrared < Ultraviolet Ultraviolet < Infrared < Visible < Microwaves Ultraviolet < Visible < Infrared < Microwaves Infrared < Microwaves < Ultraviolet < Visible Q13 Arrange these spectral regions in order of increasing frequency (X-rays, Microwaves, Ultraviolet, Visible). Microwaves < Visible < Ultraviolet < X-rays Microwaves < Visible < X-rays < Ultraviolet Ultraviolet < X-rays < Visible < Microwaves Ultraviolet < Visible < X-rays < Microwaves X-rays < Microwaves < Ultraviolet < Visibl Q15 The wavelength of visible light ranges from 400 _____ to 780 _____. micrometers; nanometers kilometers; meters meters; meters millimeters; centimeters nanometers; nanometers Q16 Which of these processes can an excited molecule undergo? I. Photodecomposition II. III. Emission of light Emission of heat Q18 Which of these forms of electromagnetic radiation can contribute to an increased risk of cancer? I. II. III. IV. Gamma radiation Infrared radiation Ultraviolet radiation Microwave radiation Q19 Which of the following describes the slow emission of light that occurs in glow-in-the-dark toys? Photodecomposition Phosphorescence Fluorescence Spectroscopy Both phosphorescence and fluorescence Q21 Which of these is not an application of MRI? Detection of diseased tissue Mapping of brain function Detection of spinal cord lesions Destruction of cancerous tumors Detection of abnormalities of the central nervous system Q23Which of these is the correct expansion of the acronym LASER? Light Amplification by Stimulated Emission of Radiation Light Acceleration by Spectroscopic Emission of Radiation Light Acceleration by Stimulated Emission of Radiation Light Amplification by Spectroscopic Electromagnetic Radiation Light Amplification by Spectroscopic Excited Electromagnetic Radiation Q24 How does LASER light differ from ordinary white light? I. II. III. IV. Laser light is hotter than white light. Laser light’s waves are in phase. Laser light contains only one wavelength. Laser light is always red in color. Q25 If the molecules of an object absorb all light, the object appears _____. white blue black yellow red Homework Q1 What is the wavelength, in nanometers, of light with a frequency of 5.17×1015 Hz? nm Q2 What is the frequency of ultraviolet light with a wavelength of 294 nm? Hz Q3
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Quiz
Q3 Which of these is not a characteristic of light?
Wavelength
Frequency
Energy
Amplitude
Mass
Q7 Which of the following is/are true when comparing infrared light with visible light?
Infrared light has a longer wavelength than that of visible light.
Infrared light has a lower frequency than that of visible light.
Infrared light has a lower energy than that of visible light.
All of these
None of these
Q8 Wavelength of light is _____. (Is that correct?)
proportional to its frequency and energy
inversely proportional to its frequency and energy
proportional to its frequency and inversely proportional
to its energy
inversely proportional to its frequency and proportional
to its energy
independent of its frequency and energy
Q9 Energy of light is _____. (Is that correct?)
proportional to its frequency and wa...


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