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Grades 912. Investigate one of the fundamental laws of physics: conservation of momentum. Use the swinging spheres of Newton’s cradle (included) as a pre-lab demonstration to explore class knowledge of conservation laws. Students conduct experiments to calculate the momentum of 2 bodies both before and after an elastic collision and determine if results are consistent with linear momentum conservation. Kit supports 8 student groups.
Grades 912. Critical thinking skills are required as students focus on linear momentum conservation of 2 bodies before and after a straight line collision, not angular momentum conservation where 2 bodies collide with a glancing blow.
To investigate the relationship among mass, velocity, and momentum, students will:
Kit contains 8 sets of materials. The time required to complete this lab is approximately 55 min. Materials (except tape) may be used indefinitely. Replenish double-sided tape as needed.
Both easy to set up and easy to repeat, these activities provide an excellent opportunity to incorporate classroom data analysis technologies such as video and photogates. Encourage students to explore these methods to improve accuracy.
|Steel Spheres, 1”||16||Included|
|Plastic Weighing Boats||16||Included|
|Teacher’s Manual with Student Guide||1||Included|
|Timers||8||Needed, Not Included|
|Level||Needed, Not Included|
|Balance||Needed, Not Included|
|Books or Blocks||Needed, Not Included|
|Probeware (optional)||Needed, Not Included|
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