Worksheets are wave properties, waves and wave properties, work wave properties and math, name date anatomy of a wave work, wave characteristics work name helpful equations, wave speed equation practice problems, teachers club science formclass p hysics waves name, chapter 19 wave properties. Fill in the chart below pwave travel time distance from the epicenter 2,000 km 11 min 20 sec 6,800 km 8 min 40 sec. Swave arrival time difference in arrival time distance to epicenter pwave travel time swave travel time origin time 1 6. Displaying all worksheets related to wave properties. Some of the worksheets for this concept are p waves and s waves, seismic waves, regents earth science name plotting epicenter work, example answers, earthquakes epicenter determination seismic waves and, additional teaching materials, earthquake p wave and s wave travel time work ans, earthquake p wave. Earthquakes and volcanoes 1 sciencematters earthquake waves. Find the difference between the p wave starting time and s wave starting time to determine the sp time gap.
Seismic wave animations for the p, s, rayleigh and love waves have been created using a 3d grid shown in figure 1. Epicenter distance pwave travel time swave travel time 5,000 km 800 km 4,400 km 6,200 km pwave travel time epicenter distance 3 min 20 sec 1 min 40 sec. Seismic waves practice questions base your answer to question 1 on the diagram below, which shows models of two types of earthquake waves. What is the difference between a mechanical wave and an electromagnetic wave. The second major type of seismic wave is called an swave. I created this for students to calculate the arrival times for p and s waves, calculating the time difference which was challenging for some and then based on these three numbers, finding the distance form the epicenter of the earthquake.
Within the earth pwaves travel at speeds between 1 and 14 kms, the precise velocity depending on the rock type. What is the name of the force that causes water to return to its undisturbed state. The program uses a method that is similar to the approach that is used by seismologists to routinely determine the location of earthquakes from around the world. Pwaves and swaves by labeling the illustrations p wave and s wave. The pwave is the fastest wave, reaching distance seismographs first. Some of the worksheets for this concept are earthquake p wave and s wave travel time work, p waves and s waves, seismic waves, earthquake p wave and s wave travel time work ans, additional teaching materials, epicenter distance p wave travel time s wave travel time, lab 2 seismic waves and travel time curves, earthquakes.
Seismograph station arrival times difference in arrival times distance to epicenter p wave s wave km 02. Pwave is the fast wave and can be called a pushpull wave, because it moves by contracting and expanding along a horizontal path. The richter magnitude scale provides a measure of the intensity of earthquakes on a 1 to 10 base10 logarithmic scale. Model a best represents the motion of earthquake waves called 1 pwaves compressional waves that travel faster than swaves shear waves shown in model b 2 pwaves compressional waves that travel slower than s. Draw a longitudinal wave in a spring and label all three parts. Explain that after pwaves and swaves reach a seismometer, they are recorded by a seismograph as a series of lines on a chart called a seismogram. Worksheet 71 waves denton independent school district.
P wave can be hidden in the qrs complex or p wave may follow the qrs complex pr interval of pdf 14. When the earths crust quickly moves or snaps it produces an earthquake, releasing energy in the form of seismic waves that radiate out from the focus. The p wave causes the ground to shake back and forth. The wave animations illustrate wave characteristics and particle motion as listed in table 1. The particle motion in shear waves is perpendicular to the. P wave at the seismic station, and the s, which indicates the arrival time of the s. S, shear, secondary, transverse alternating transverse. Wave speed equation practice problems the formula we are going to practice today is the wave speed equation.
Pwaves and swaves by labeling the illustrations pwave and swave. The farther away a location is from an earthquakes epicenter, the greater the lag time, or distance in arrival times between the pwaves and the swaves this can be seen by examining the increasing distance between the p and swave lines on the graph on page 11 of the earth science reference tables esrt. Determine the difference between the arrival times of the p and s waves. P waves are also called pressure waves for this reason. Use the yaxis time travel and use a piece of scrap paper to mark the time difference. Collect slinkies and distribute the student worksheet. Worksheets are earthquake p wave and s wave travel time work, p waves and s waves, seismic waves, earthquake p wave and s wave travel time work ans, additional teaching materials, epicenter distance p wave travel time s wave travel time, lab 2 seismic waves and travel time curves, earthquakes epicenter determination seismic. A the focus of the earthquake is directly below the epicenter. Worksheet 71 waves introduction to the worlds oceans chapter 9 waves pages 233 240 how a wave begins 1. Students will define wave and differentiate transverse and compressional longitudinal.
P waves are the smaller ones, s waves are larger ones. Tsunami waves and ocean currents k2 humboldt state university. They are longitudinal waves which means that the direction of motion and propagation are the same. Time taken by pwaves to travel a distance d from the epicenter to a seismic station. Showing top 8 worksheets in the category s and p waves. Displaying all worksheets related to p wave s wave. Epicenter distance pwave travel time swave travel time. Seismic wave motionbraile compressional p wave propagation in a slinky. Name two properties of surface waves that are not true of p and s waves. Earthquake pwave and swave travel time worksheet ans. To research and evaluate the social and economic impact of earthquakes. An s wave is slower than a p wave and can only move through solid rock, not through any liquid medium. Primary p or compressional waves travel trough all types of materials including solids, liquids and gases. Pwaves, swaves, 3 circle method, estimation of earthquake.
Displaying top 8 worksheets found for p wave s wave. Therefore, an adequate combination of automatic and manual data processing should. Get the distance from the epicenter from the graph you made earlier, using the s. Additional illustrations of p, s, rayleigh and love waves. This wave causes the rocks the move back and forth. Illustrate and label the parts of a transverse wave using the terms, trough, crest, wavelength, and amplitude.
The motion produced by a pwave is an alternating compression and expansion of the material. It is this property of s waves that led seismologists to conclude that the earths outer core is a liquid. P waves are the first wave to hit the earths surface. S waves the second type of body wave is the s wave or secondary wave, which is the second wave you feel in an earthquake.
See question 2 on page 82 on the worksheet for this activity. Find the epicenter of an earthquake polk county school. Animations of these images can be found in the folder noted on the first page of this activity. Fill in the chart below p wave travel time distance from the epicenter 2,000 km 11 min 20 sec 6,800 km 8 min 40 sec. Generally smaller and higher frequency than the s and surface waves. Wave speed equation practice problems conant physics. Quantity symbol quantity term unit unit symbol v wave speed meterssecond ms wavelength meter m f frequency hertz hz remember. The following graph shows on the p and s waves from an earthquake no surface waves. Learn vocabulary, terms, and more with flashcards, games, and other. Write down your data in the box to the right of each seismogram. Displaying all worksheets related to diagram of wave. P lag time that you recorded at your seismic station.
Pwaves move the earth back and forth in the direction the wave is traveling. Students learn about the types of seismic waves produced by earthquakes and how they move the. Using the p wave to answer some questions and fitting some rules to identify the arrhythmia. Displaying top 8 worksheets found for earthquake s and p waves.
Pwaves and swaves allows scientists to calculate the time of the earthquake and its distance from the. Worksheets are name date anatomy of a wave work answers, name date anatomy of a wave work, waves electromagnetic spectrum work, lesson 1 sound and music the physics classroom, teachers club science formclass p hysics waves name, wave, describing waves, lesson physical science. Worksheet using the pwave and swave travel time chart. P waves, or primary waves, are the first waves to arrive at a seismograph. Introduction and types a wave is a transfer of energy through a medium from one point to another. Sample problem a buoy bobs up and down in the ocean. It pushes and pulls the rock it moves through just like sound waves. Earthquake pwave and swave travel time worksheet 1.
Answer the questions and use the graph at bottom find the distance from the earthquake 4. If the p waves arrive at the seismograph station at 4. Slinkies prove to be a good tool for modeling the behavior of compressional p waves and shearing s waves. How much time does it take for one wave to pass under the buoy. Wave notes lesson concept primary and secondary waves travel through earths layers in different ways link the previous lesson 6. P waves in a liquid or gas are pressure waves, including sound waves. All wave types are designed to propagate in the x direction illustrated in figure 1 and parallel to the earths surface. A surface seismic wave generated by the interaction of pwaves and swaves at the surface of the earth that move with a rolling motion. Find the difference in clock time between the pwave and swave by subtracting the given times. Place the marked scrap paper between the pwave and swave line on the graph. They leave behind a trail of compressions and rarefactions on the medium they move through. The farther these waves travel away from the source of the earthquake, the more the p waves will outpace the s waves. The s wave also travels through the interior of the earth and is the second wave to be felt. Then complete the calculation problems at the bottom of the page.
Discuss how distances between crests affect the wavelength. Pwaves travel through both solids and liquids with the greatest speeds. P waves, or primary waves are the first waves to hit the seismographs when an earthquake strikes. Earthquake p wave and s wave travel time worksheet 1.
When p and s waves reach the surface of the earth they become surface waves. P waves are the fastest seismic waves and can move through solid, liquid or gas. The p wave can move through solid rock and fluids, like water or the liquid layers of the earth. We recommend reading about the behavior of seismic waves and watching the variety of animations below to understand how they travel and how the p, s, and surface waves differ from.