Classic Mechanics and the Wave Model

Place the following types of electromagnetic radiation in order of increasing wavelength (shortest at the top to longest at the bottom). X-ray, Visible light, Radio waves, UV radiation, IR radiation

1. X-ray 2. UV radiation 3. Visible light 4. IR radiation 5. Radio waves

Rank the following in order of increasing wavelength, with the smallest wavelength at the top of the list. Instructions 1. visible light 3. radio waves 3. x-rays

1. x-rays 2. visible light 3. radio waves

Match each wavelength with its associated frequency. (Hint: you should be able to answer this problem without a calculator if you consider the relationship between wavelength and frequency!) 450 nm 600 nm 750 nm 850 nm - 6.67x10^14 s^-1 - 5.00x10^14 s^-1 - 4.00x10^14 s^-1 - 3.53x10^14 s^-1

450nm 6.67x10^14 s^-1 600nm 5.00x10^14 s^-1 750nm 4.00x10^14 s^-1 850nm 3.53x10^14 s^-1

Determine the wavelength (in meters) of radiation with a frequency of 4.60 × 10^7 s^−1. a. 0.153 m b. 1.38 × 10^16 m c. 6.52 m d. 4.60 × 10^7 m

6.52 m

The law of ____ of energy states that energy can be neither created nor destroyed.

Blank 1: conservation

Visible light forms a small part of the ____ spectrum, which includes other types of radiation. All radiation exhibits ____ like behavior.

Blank 1: electromagnetic Blank 2: wave or particle

The speed of a wave is determined by multiplying the ____ of the wave by its wavelength. In a vacuum, all electromagnetic radiation travels at a constant speed, the speed of ____, which is equal to 3.00 x 10^8 m/s. (Include a word in the last fill-in-the-blank space, not a symbol or number.)

Blank 1: frequency Blank 2: light

The SI unit of energy is the ____, which is abbreviated by the symbol _____.

Blank 1: joule Blank 2: J

James Maxwell proposed that light consists of waves, and that an electromagnetic wave contains both an electric component and a magnetic component. These two components travel in ____ planes.

Blank 1: perpendicular, orthogonal, or mutually perpendicular

Match each type of energy with the correct definition. Instructions Chemical energy Electrostatic energy Thermal energy Kinetic energy Potential energy - Energy associated with the random motion of atoms and molecules - Energy stored in the structure of a compound - Energy resulting from the interaction of charged particles

Chemical energy: Energy stored in the structure of a compound Electrostatic energy: Energy resulting from the interaction of charged particles Thermal energy: Energy associated with the random motion of atoms and molecules Kinetic energy: Energy that results from motion Potential energy: Energy possessed by an object due to its position

True or false: Both heat and work can be measured in joules.

True

Match each property of a wave to the correct definition. Instructions Wavelength Frequency Amplitude - The number of waves that pass through a point in 1 second - The vertical distance between the midline of a wave and the top of its peak - The distance between successive identical points of a wave

Wavelength: The distance between successive identical points of a wave Frequency: The number of waves that pass through a point in 1 second Amplitude: The vertical distance between the midline of a wave and the top of its peak

Match each region of the electromagnetic spectrum with a practical application. X rays ultraviolet infrared microwave - heat lamps - sun lamps - medical diagnosis - cell phones

X rays: medical diagnosis ultraviolet: sun lamps infrared: heat lamps microwave: cell phones

Which of the following statements correctly define electromagnetic radiation? Select all that apply. Multiple select question. a. Electromagnetic radiation exhibits wave behavior. b. Electromagnetic radiation cannot exist unless an electromagnet is present. c. Visible light is a type of electromagnetic radiation. d. Electromagnetic radiation cannot interact with matter.

a. Electromagnetic radiation exhibits wave behavior. c. Visible light is a type of electromagnetic radiation.

Which of the following statements correctly reflect the law of conservation of energy? Select all that apply. Multiple select question. a. Energy can neither be created nor destroyed. b. The total energy of the universe is constantly decreasing. c. One form of kinetic energy must always be transformed into a different type of kinetic energy. d. Energy is lost when an object slows down. e. Energy can be converted from one form to another.

a. Energy can neither be created nor destroyed. e. Energy can be converted from one form to another.

Which of the following options correctly describe the way two waves can interact? Select all that apply. a. If the peaks of two waves coincide, a new wave with a larger amplitude will result. b. Destructive interference between two waves produces a new wave with a deeper trough. c. When two waves that are in phase interact, constructive interference is observed. d. If the troughs of two waves coincide they will exhibit destructive interference.

a. If the peaks of two waves coincide, a new wave with a larger amplitude will result. c. When two waves that are in phase interact, constructive interference is observed.

Which of the following correctly describe the two components of Maxwell's electromagnetic wave? Select all that apply. a. The two wave components have the same wavelength and frequency. b. The wave consists of an oscillating electric field component. c. The wave consists of an oscillating magnetic field component. d. The two wave components travel at different speeds. e. The two wave components travel in parallel.

a. The two wave components have the same wavelength and frequency. b. The wave consists of an oscillating electric field component. c. The wave consists of an oscillating magnetic field component.

Which of the following options correctly describe the parameters that define waves a. The wavelength of a wave is the distance between two successive peaks or troughs. b. Wavelength is represented by the symbol ω. c. The amplitude of a wave is the vertical distance from the peak of a wave to its trough. d. Frequency is represented by the symbol ν. e. The units of frequency are s^-1.

a. The wavelength of a wave is the distance between two successive peaks or troughs. d. Frequency is represented by the symbol ν. e. The units of frequency are s^-1.

Determine the frequency (in s^−1) of radiation with a wavelength of 83.5 nm. a. 3.59 × 10^6 s^−1 b. 3.59 × 10^15 s^−1 c. 2.78 × 10^−16 s^−1 d. 25.1 s^−1

b. 3.59 × 10^15 s^−1

Which of the following statements correctly describe different types of energy? Select all that apply. a. Electrostatic energy arises from the movement of charged particles. b. The kinetic energy of an object is directly proportional to its mass. c. The potential energy of an object is directly proportional to its speed. d. Changes in thermal energy are detected by measuring temperature changes. e. Chemical energy is a type of potential energy.

b. The kinetic energy of an object is directly proportional to its mass. d. Changes in thermal energy are detected by measuring temperature changes. e. Chemical energy is a type of potential energy.

Determine the frequency (in s^−1) of radiation with a wavelength of 83.5 nm. a. 3.59 × 10^6 s^−1 b. 2.78 × 10^−16 s^−1 c. 3.59 × 10^15 s^−1 d. 25.1 s^−1

c. 3.59 × 10^15 s^−1

Any two waves that meet as they travel through the same medium will interact. If the two waves are in phase their crests will coincide and they will exhibit _____ interference, producing a wave with a(n) _____ amplitude.

constructive, increased

Any two waves that meet as they travel through the same medium will interact. If the two waves are out of phase their crests will not coincide and they will exhibit _____ interference, producing a wave with a(n) _____ amplitude.

destructive, decreased

Wavelength and frequency are _____ proportional to each other. As wavelength increases, frequency will _____.

inversely; decrease