• Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

Radioactive Decay Lab

Extracts from this document...


Introduction There are many atomic nuclei which are unstable and so they radiate different emissions. The process by which they decay is called radioactive decay. When there is an abundance of neutrons or protons in the nuclei, then the nuclei will wither emit an alpha particle, a beta particle, or a gamma particle. An alpha particle is a helium nucleus, a beta particle is an electron, and a gamma particle is an electromagnetic wave (Physics 30). ...read more.


A substance with a long half life will decay slowly, while a substance with a short half life will decay rapidly. (Kirk) Every element has its own decay constant ( which is used to find the number of given radioactive particles after a certain time period. The formula used to find the number of particles which are undergoing radioactive decay after a certain time is: where is the initial number of particles, is the decay constant, and t is the time elapsed. ...read more.


15.5 14.8 12000 8.5 15.5 12.0 13000 5.5 13.5 9.5 14000 3.5 10.5 7.0 15000 3.5 8.0 5.8 Data Processing Calculations Calculating Half Life # of Molecules Time (s) 40 5200 20 9000 # of Molecules Time (s) 80 1600 40 5200 Average Half Life=time needed for # of molecules to half Half Life 1-3800s Half Life 2-3600s Therefore average half life= Calculating Decay Constant LOBF Therefore Transformed Graph Therefore, the slope represents which is the decay constant, and the intercept is the , which is the initial number of particles. ...read more.

The above preview is unformatted text

This student written piece of work is one of many that can be found in our International Baccalaureate Physics section.

Found what you're looking for?

  • Start learning 29% faster today
  • 150,000+ documents available
  • Just £6.99 a month

Not the one? Search for your essay title...
  • Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

See related essaysSee related essays

Related International Baccalaureate Physics essays

  1. Pendulum Lab

    13.51s(�0.1s) Trial 5 1.1s(�0.1s) 6.7s(�0.1s) 8.03s(�0.1s) 13.46s(�0.1s) Raw Qualitative Data: During the experiment there was no visible difference was noticed between how the different bobs periods were affected by their surface areas. It was noticed however that the paths of motion were not fluid as there was a lot of spinning of the pendulum.

  2. Physics Wave revision question

    The insect will not be located if A. the insect's speed is less than the speed of the sound wave. B. the insect's wing beat frequency is greater than the frequency of the sound wave. C. the length d is much greater than the wavelength of the sound wave. D.

  1. Investigating radioactive decay using coins

    First of all, the drop height must be kept the same in all experiments and this can be done by using a rule to measure the height each time. Also the type of coins and the surface which the coins hit must be kept the same.

  2. Investigating electromagnetic induction

    ?I �0.5 mA push in (-) Current (mA) ?I �0.5 mA pull out (+) 11 11 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 11 12 12 12 11 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 Mean ( )

  1. Telescopes - science research project.

    them with the current services and will be a main toll for answer most of the convincing and vital queries in existing science. [9] Figure 4: Thirty Meter Telescope Extremely Large telescopes: Extremely Large telescopes are thought to be the one of the biggest significances in ground-functioned astronomy.

  2. Exponential Decay of beer foam Design Lab

    Diagram: Variables: Variable Type Variable(s) Method of Measuring Independent The time taken for the beer to foam and settle. The time will be measured in seconds using a timer, to give the foam time to form and build up.

  1. HL Physics Revision Notes

    wave pulse involves just one oscillation Transverse waves are waves where the oscillations are at right angles to the direction of energy transfer, such as light waves and water waves. Transverse waves cannot propagate in a gas. Longitudinal waves are waves where the oscillations are parallel to the direction of

  2. The Half-life of dice Decay investigation

    Numerical error = No. of dice remaining X %error For the 1st shuffle: 84 x 10% = 8% (round up to the nearest integer since the number of dice must be an integral value) Based on the table above, the number of dice remaining is plotted against the number of

  • Over 160,000 pieces
    of student written work
  • Annotated by
    experienced teachers
  • Ideas and feedback to
    improve your own work