Abstract:

This investigation provides an opportunity for the learner to access some real-time Advanced Composition Explorer (ACE) spacecraft data. The ACE/SWEPAM data plots they will access will be used to determine temperature and radial speed for the solar wind. In addition, the learner will use a variety of information about the ACE spacecraft to solve sample physics problems dealing with conversion factors, kinematics, mass/weight, momentum, and work/power/energy. In the investigation the learner is provided with the appropriate physics equations and conversion factors and is asked to solve the problems. The problem sets could be used:

• throughout a physics course to introduce students to some specifics about the ACE mission
  
• to provide supplemental problems to be used while studying the topics listed above
  
• as a review set for a final exam in physics.
  
  

There are two accompanying Educational Briefs. The first provides an explanation of basic atomic structure and explains the ACE project. It is the "Composition of Matter, Atomic Structure" Education Brief . The second provides an explanation of the Big Bang, the fusion process, and the evolution of stars. It is the "Cosmology and Stellar Evolution" Education Brief.

Outcome:

• The learner will access some ACE real-time SWEPAM data plots to determine temperature and radial speed for the solar wind and answer associated questions.
  
• The learner will be able to list instances where their physics curriculum relates directly to work being done by scientists who are working on the cutting edge of space science.
  
• The learner will be able to solve physics problems dealing with conversion factors, kinematics, mass/weight, momentum, and work/power/energy
  

Suggested Grade Level & Duration:
Grades 9-12; 1 to 2 fifty-minute periods.

Materials:
The learner will need a computer with internet access, a scientific calculator, and an attached printer (to print a copy of the procedure for the investigation if so desired).