Light lesson 1 worksheet 4 this worksheet focuses on the speed of light and working out the time taken for light to reach earth from the sun and the distance to pluto. Speed of light in different materials students will study the table in this printable to answer questions about the speed of light in different materials. Pitch is determined by the vibration rate of the sound source. What is the variable that we use to represent speed of light ms c note. This equation allows the calculation of the energy of photons, given their frequency. This worksheet focuses on the speed of light and working out the time taken for light to reach earth from the sun and the distance to pluto. You can calculate the speed of a wave if you know its wavelength and frequency using the equation below. Calculate the frequency of light that has a wavelength of 4. The hotspots should occur at half the wavelength of microwaves. The worksheets are useful for ks3 students, especially year 8 students to revise and master the topic.
In the next step, students will use the frequency and plancks cons. Download free printable worksheets physics pdf of cbse and kendriya vidyalaya schools as per latest syllabus in pdf, cbse class 10 physics worksheet lightreflection and refraction practice worksheets for cbse students. Worksheets keplers laws of planetary motion, new tons laws, the galilean moons of jupiter afternoon. Physics worksheet lesson 24 reflection and refraction. Determine the speed of light in the following materials. A wave has a wavelength of 125 meters is moving at a speed of 20 ms. Sketch the light beam as it enters and passes through the block. The beams refract towards each other until they meet at a point look at light look at light 6 a find the circular block and place it in the path of the three beams of light. In this travel time of light worksheet, students read about the nasa satellites and space probes that transmit radio signals at the speed of light across huge distances. The nature of light uw madison astronomy department. Sample problem a buoy bobs up and down in the ocean. Cbse class 10 physics light reflection and refraction worksheet. Look at the picture of the pencil in the glass of water.
May 28, 2015 wave speed worksheet conceptual questions 1. What would a sound wave with a large amplitude and large frequency sound like. Light lesson 1 worksheet 4 this worksheet focuses on the speed of light. Almost nothing in this universe can travel faster than light. It is such an important quantity in physics that it has its own. Curriculum guide for light energy wallingford schools. This would be the distance that light can travel in a. Calculate the frequency of green light waves with this wavelength. The frequency of red light is lower than the frequency of blue light.
Figure 4 shows how the wavelengths of trans verse and compressional waves are. In a microwave, a number of waves are generated by the magnetron. The faster waves travel, the more crests or compressions pass by you each second. Properties of light university of maryland college of. If a car travels 400m in 20 seconds how fast is it going. Students will understand properties and behavior of heat, light, and sound. The problem with this is that light is so fast it travels between points on earth seemingly instantaneously. The different colors of light that we see correspond to different frequencies. What was the distance between the astronomers and the moon. If an angle between the incident ray and reflected ray is 90o, then the angle of reflection is a 450 b 00 c 900 d 30o q2. Calculate the energy and frequency of red light having a wavelength of 6. The first attempts to measure the speed of light were the same way the speed of any other object is measured, distance traveled over time.
For many years, the posted highway speed limit was 88. However, we are unable to see anything in a dark room. Because the speed of both kinds of light is the same, a lower frequency wave has a longer wavelength. Second, light always travels through the shortest path possible. Inspiring worksheets speed of light worksheet images. The city school reinforcement worksheet eoy 2015 science class 7 light page 2 of 8 5. Speed of light worksheet dcjsss teaching resources. Calculate the wavelength of radiation with a frequency of 8. But through the vast distance of outer space, even light can seem slow. Then using the light equation and speed of light the students will figure out the frequency for each color. Light travels through a vacuum at a speed of 3 x 108 ms. Silicon worksheet answer key 1 measuring refraction.
This why it takes 8 minutes for the suns light to reach earth even though the sun is 93 million miles away. Light from the sun takes about 8 minutes to go 93 million miles 149 million kilometers to earth. The speed of light is related to frequency f and wavelength o by the formula to the right. Prepared by teachers of the best cbse schools in india. The fastest speed in the universe, the speed of light. You can use a calculator but you must show all of the steps involved in doing the problem. Physics worksheet reflection and refraction section.
Mastering concepts how does the angle of incidence compare with the angle of refraction when a light ray passes from air into glass at a nonzero angle. Calculate the period of the green light waves in the above. What is the variable that we use to represent wavelength m w. The time that has passed between when light was originally emitted by a source and when we detect it on earth is known as the. Click on popout icon or print icon to worksheet to print or download. Speed of light worksheet dcjsss lesson plan template and teaching resources. One of these differences involves the ability to travel in a vacuum. Speed of light math problems, blackbody worksheet, color analyzer activity. If you move 50 meters in 10 seconds, what is your speed. Cooking at the speed of light written by jeremy peacock and amy rowley annotation. Unfortunately, only radio waves and other forms of electromagnetic radiation can travel exactly this fast.
Have some fun exploring the speed of light with this stellar space science worksheet. The moons of jupiter evening read chapter 2, observing jupiter and galilean moons. What is the result of light hitting an objectinteracting with matter. Mar 17, 2017 speed of sound can be calculated fairly accurately from videos. Displaying all worksheets related to speed of light. What 2 criteria are needed for total internal reflection to occur. Students solve 3 problems about data transmission from space to. Measuring the speed of light with chocolate uga extension. A bullet or moon or planet always has a speed that is relative to something else.
What is the wavelength of light with a frequency of 7. Students will be able to identify the crest, trough, amplitude, and wavelength of. You will receive a zip file which contains a video response worksheet in both pdf and editable docx formats and a video response worksheet key in both pdf. A wave has a frequency of 900 hz and a wavelength of 200 m. At dusk, you often can only make out the shape of objects, not their color. In this activity, students measure the speed of light using a microwave oven and the wave speed equation. Calculate the angle of refraction for light as it passes from air to each of. Calculate the refractive index for a substance if the speed of light in that medium is a. Students will be able to identify the crest, trough, amplitude, and wavelength of a wave.
First, convert nanometersnm into meters by multiplying by 109 6. Yellow light with a wavelength of m travels through quartz glass with a speed. Really long distances can be measured in light years. Modeling concepts to teach dualnature of light speed of light light travels at the very fast speed at 3. Microwaves are set at a frequency to make water molecules vibrate and hence heat the food. B people are tired and they can not see colors as well. Worksheets are misp speed of light and sound work 3, light waves name chem work 5 1, properties of light, light energy work, name key period speed frequency wavelength, measuring refraction silicon work answer key, physics work lesson 23 sound and light, plancks equation name chem work 5 2.
The nature of light as a wave a small disturbance in an electric field creates a small magnetic field, which in turn creates a small electric field, and so on light propagates itself by its bootstraps. The first real calculations of light speed came from the shadows of jupiters moons. You can calculate the speed of a wave if you know its. The light rays bend as the light rays pass from the water to the air, making the pencil look bent. Light travels at about 186,000 miles per second 300,000 kilometers per second. Light waves can interfere with other light waves, canceling or amplifying them. This lesson can be used as a lab or demonstration to teach students about the speed of light and it relationship to frequency and wavelength. What is the variable that we use to represent frequency hz. A red laser pointer emits light with a wavelength of 700nm. This would be the distance that light can travel in a year, or 5,865,696,000,000 miles. The wavelength of green light from a traffic signal is centered at 5.
Light reflection and refraction chapter10 w e see a variety of objects in the world around us. To get the same effect, shine a light through a prism, a medium that breaks up light. Speed of light depends on media medium speed ms refractive index vacuum 3 x 108 air 2. In this worksheet students will use a visible light spectrum chart to calculate the wavelength of different colors of light. Does time dilation mean that time actually passes more slowly in moving references frames or that it only seems to pass more slowly. Speed of light and all electromagnetic spectrum waves c 3. A helium laser emits light with a wavelength of 633 nm.
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