How do law enforcement officers determine the strength of an explosion based on the movement of objects around the point of origin? Scholars inspect the relative mass and velocities of two cars before and after an explosion. They perform simple calculations of momentum using the given mass and velocity.  The lesson fits as one part in a larger series on Momentum and Collisions.

Concepts

the law of conservation of energy, momentum, conservation of momentum, mass, velocity

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Additional Tags

science

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Instructional Ideas

• Assign all three levels since none of the questions repeat

Classroom Considerations

• Adapts to any screen size from a smartphone to a smart board
• Relies on prior knowledge of the conservation of momentum and how to calculate momentum

Pros

• Provides additional practice for each missed question
• Includes immediate feedback and a display of the current progress

Cons

• None

Common Core

RST.9-10.3 RST.11-12.3