The Half-life of Pennies Lab Can you use pennies to demonstrate "decay?Imagine existing more than 5,000 years and still having more than 5,000 to go! That is exactly what theunstable element carbon-14 does. Carbon-14 is a special unstable element used in the absolute datingof material that was once alive, such as fossil bones. Every 5,730 years, half of the carbon-14 in a fossilspecimen decays or breaks down into a more stable element. In the following lab you will see howpennies can show the same kind of "decay."Materials • 100 pennies • large container with a coverProcedure a. Place 100 pennies in a large, covered container. Shake the container several times andremove the cover. Carefully empty the container on a flat surface, making sure the pennies don't rollaway. b. Remove all the coins that have the "head" side of the coin turned upward. Record the numberof pennies removed and the number of pennies remaining in the data table below.Shake numberNumber ofcoins removedNumber ofcoins remaining356789Data Tablec. Repeat the process until no pennies are left in the container. Remember to remove only the coinsshowing "heads." d. Draw a graph to plot your data. Label the x-axis “Number of shakes," and label they-axis "Pennies remaining." Using data from your data table, plot the number of coins remaining at eachshake. d. Plot your data on the following graph. Label the x-axis "Number of shakes," and label the y-axis"Pennies remaining." Using data from your data table, plot the number of coins remaining at eachshake. The grid has 25 squares vertically, so each square counts as 4 pennies.10050 -4x label:X-Y plot of number of pennies remaining (Y) versus the number of shakes (X)Half-life of Carbon-14Analysis 1. Examine the "Half-life of Carbon-14" graph. Compare100the graph you have made for pennies with the one for carbon-14.Explain any similarities that you see.502512.56.2501 2 3 4 5Number of half-lives (5,730)2. Recall that the probability of landing "heads" in a coin toss is 1/2.Use this information to explain why the remaining number of pennies is reduced by about half each timethey are shaken and tossed.y label:Grams of carbon-14

The given problem is about the demonstration of Carbon-14 radioactive element by conducting a lab…

Analysis 1. Examine the "Half-life of Carbon-14" graph. Compare the graph you have made for pennies with the one for carbon-14. Explain any similarities that you see. Grams of carbon-14 Half-life of Carbon-14 100 50 25 12.5 6.25 0 1 2 3 Number of half-lives (5,730) 2. Recall that the probability of landing "heads" in a coin toss is 1/2. Use this information to explain why the remaining number of pennies is reduced by about half each time they are shaken and tossed.

Analysis 1. Examine the "Half-life of Carbon-14" graph. Compare the graph you have made for pennies with the one for carbon-14. Explain any similarities that you see. Grams of carbon-14 Half-life of Carbon-14 100 50 25 12.5 6.25 0 1 2 3 Number of half-lives (5,730) 2. Recall that the probability of landing "heads" in a coin toss is 1/2. Use this information to explain why the remaining number of pennies is reduced by about half each time they are shaken and tossed.

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

See similar textbooks

Similar questions

t Activity 1.2: Solve for the following problems. Show your solutions and box your final answers. Criteria for Scoring and Given 1 required Appropriate model or equation Solution Final answer Total 1 2 1 1. How much heat is needed to raise the temperature of a 3 kg of aluminum 8 K?
Which of the following is a way that scientists safeguard against selective observation? A) Scientists guard against these errors by using carefully crafted measuring devices, such as questionnaires and scales. B) Scientists guard against these errors by using other scientists to double-check their arguments. C) Scientists guard against these errors by specifying in advance the number and kind of observation(s) that will be made.
Radiocarbon dating is the most common and important absolute dating technique in archaeology. The method has proven invaluable for providing calendar dates for a range of different materials and many different time periods. Radiocarbon dating, however, is not without its limitations and uncertainties, so it is important for archaeologists to be aware of a range of issues when using the technique. For the second part of this assignment, please answer the questions below. 6. List two kinds of archaeological materials can be dated using the radiocarbon method and two that cannot be dated with radiocarbon. 7. In one or two sentences, explain why radiocarbon ages need to be calibrated into calendrical ages? 8. A radiocarbon date on wood charcoal was obtained from Layer N in the stratigraphic profile above. The date has a radiocarbon age of 5500 BP ± 50 yrs and it calibrates to 4450-4260 cal. BC. Burial W in Layer E was also dated and has a radiocarbon age of 5000 BP ± 30, which…
If you could run 8 kilometers at 8 km/hr, how much energy would you burn?This activity uses up energy at the rate of 313.6W. (round off into 4 decimal places, use 9.81m/s squared for acceleration)
The radioactive element carbon - 14 has a half life of 5715 years. If a piece of charcoal from an ancient campsite has 20% of its original amount of carbon remaining, determine its age
5. Scientists always develop a plan when they try to learn something about our natural world. Which sequence correctly shows the steps scientists follow in their plan? A. make observations, develop an idea, obtain evidence, suggest an explanation B. obtain evidence, suggest an explanation, develop an idea, make observations C. suggest an explanation, obtain evidence, make observations, develop an idea D. develop an idea, suggest an explanation, obtain evidence, make observations Explanation:
YOU MUST SHOW HOW YOU DID THE CONVERSION! Use the above example as a model for your work to show a clear path to answer. An asteroid fragment has a density of 5.72 cm3 , what is this density in ft3 ? 1 lb = 454.5 g 1 in = 2.54 cm
Please provide a plausible explanation why us and Hk are different.
According to the Bat Man, bats live for about 40 years and eat about 1,000 mosquitoes per hour. That means a single bat can eat approximately 1.75 X 108 mosquitoes in its life. Is the Bat Man correct? Show all conversions and explain in complete sentences.
3. The Duggs find the skeleton of a Zillow beast and wish to carbon date it. If the half life of Carbon-14 is 5700 years, and we measure 60% of the original carbon, how old is the Zillow beast fossil?
Carbon-14 is radioactive while Carbon-12 is stable. In your body, the ratio of C-14 to C-12 is for every 10,000 C-14 atoms, there are 1 trillion (1,000,000,000,000) C-12 atoms. This is the normal ratio for livings things. In a piece of a sabre-tooth tiger bone, a scientist finds there are only 625 C-14 atoms for every 1 trillion C-12 atoms.How old is the sabre-tooth tiger bone? The half-life for Carbon-14 is 5730 years.
1. Which of the following do you expect to be periodic? Explain why in each case. a) The rhythm of the human heart, at rest, over time. b) The number of passenger cars purchased annually in Ontario from 1990 to 2000. c) The rise and fall of sea levels created by low and high tide, respectively. d) The average monthly temperature in your community, recorded each month for five years.