Table of Contents
What is the distance in centimeters of a melted marshmallow hot spot in meters?
A hot spot occurs ever ½ a wavelength or approximately 6 cm, as represented with the marshmallows in this experiment.
What are the properties of waves quizlet?
The basic properties of waves are amplitude, wavelength, frequency, and speed.
How can a standing wave be set up and used to determine a value for the speed of electromagnetic radiation?
The relationship between the wavelength, frequency and speed of a wave is a simple one: v = f•λ. Hertz was able to measure the wavelength and frequency of his mystery waves, thanks to being able to make standing waves, and thus he could easily calculate their speed.
How do you find the frequency of a microwave oven?
Look for a sticker on your microwave that tells you its frequency in Hertz (Hz). Most microwaves are around 2450 MHz. Note: MHz = 10^6 Hz.
What are the properties of wave in physics?
The basic properties (parts) of a wave include: frequency, amplitude, wavelength and speed. Frequency is a measure of how many waves pass a point in a certain amount of time.
What is the difference between high amplitude and low amplitude sound waves?
A high amplitude wave carries a large amount of energy; a low amplitude wave carries a small amount of energy. Amplitude and intensity are related, but not the same.
How do you calculate standing waves?
The frequency f is f = v/λ. For waves on a string v = √(F/μ). Details of the calculation: Here μ = m/L = 0.2 kg/m, v2 = F/μ = (50 N)/(0.2 kg/m) = 250 (m/s)2, v = 15.8 m/s.
What do you think the function of the mesh on the viewing screen of your microwave is?
Microwave ovens are designed to keep in radiation. Against the glass, there is a protective mesh screen dotted with tiny holes. These holes are spaced appropriately so that the long microwaves are kept bouncing inside the chamber, while also allowing you to peer through and view your food, explained Jorgensen.
What is the speed of microwaves of gamma rays?
In a vacuum, all forms of electromagnetic radiation—whether microwaves, visible light, or gamma rays—travel at the speed of light (c), which is the speed with which all forms of electromagnetic radiation travel in a vacuum, a fundamental physical constant with a value of 2.99792458 × 108 m/s (which is about 3.00 ×108 m …
What are waves in physics?
a disturbance or variation that transfers energy progressively from point to point in a medium and that may take the form of an elastic deformation or of a variation of pressure, electric or magnetic intensity, electric potential, or temperature.