Waves

Question 1:What is the meaning of damping? Answer:Damping is the decrease of the amplitude of an oscillating system due to losing energy to the surrounding. Question 2:Sketch a graph of displacement against time for a system experiencing damping. Answer: Question 3:State three examples of the effects of resonance in our daily lives. Answer:Resonance is a … Read more

Question 1:Figure 5.20 shows a graph of displacement against time for a wave.(a) What is meant by amplitude?(b) Determine the period of oscillation, T. Th en, calculate the frequency of oscillation. Answer:(a) Amplitude is the maximum displacement from its equilibrium position.(b)From the graph, period, T = 0.4 s$$ \text { Frequency, } \begin{aligned} f & … Read more

Diagram (2.1) shows a loaded spring oscillating vertically in water. The oscillating system experiences damping.Diagram (2.2) shows the displacement-time graph for the oscillating system. Underline the correct answer in the bracket to complete the sentence below. Damping is a situation when the (amplitude, wavelength) of the oscillation decreases. [1 mark] State one reason why damping … Read more

Radio Wave Telecommunications Broadcasting: Radio and television transmission Astronomy study Microwave Satellite transmissions Radar systems to detect objects(size, form and position) Cooking Infrared Night vision Thermal imaging and physiotherapy Remote controls for TV/VCR Heating in physiotherapy Thermometer Cooking Visible Light Sight Photosynthesis in plants Photography Ultraviolet Identification of counterfeit notes Production of fluorescent effects Production … Read more

(This file is shared by Philip Ronan under the Creative Commons Attribution-Share Alike 3.0 Unported license.) The full range of electromagnetic waves, arrange orderly in their wavelengths and frequencies is called the electromagnetic spectrum. The figure above shows the electromagnetic waves in the electromagnetic spectrum. In SPM, you need to know The order of the … Read more

Electromagnetic Waves Electromagnetic waves come from a whole variety of sources. They differ greatly in their wavelengths and in their effects, but they have certain fundamental properties in common. The common properties of electromagnetic waves are as below: They are transverse waves: Electromagnetic waves are transverse wave. The moving wave effect is produced by oscillating … Read more

Applications of Sound Wave Sonar   Q & A Explain how sonar is used to measure the depth of a sea. for visualizing subcutaneous body structures including tendons, muscles, joints, vessels and internal organs for possible pathology or lesions. In the sonar system, the broadcasting equipment emits ultrasonic pulses. The pulses are reflected back from … Read more

Loudness and Pitch Loudness of a sound depends on the amplitude of the sound wave. The greater the amplitude of a sound wave, the louder the sound is. The pitch of a sound is high or low of the sound. The pitch of sound is determined by its frequency. The higher the frequency, the higher … Read more

Characteristic of Sound Wave Sound wave is a series of compression and rarefaction of layers of air molecules repeatedly through space. The forward and backward vibration of the air molecules in the direction of motion of a sound wave shows that sound is a longitudinal wave. Propagation of Sound Wave Sound wave is a mechanical … Read more