(The first two Essential Understandings have been taken from the NGSS Physical Science Progression.)
- The role of the mass of an object must be qualitatively accounted for in any change of motion due to the application of a force.
- Forces that act at a distance involve fields that can be mapped by their relative strength and effect on an object.
- Digitized signals (sent as wave pulses) are a more reliable way to encode and transmit information. (taken from DCI MS-PS4-3)
Factual Guiding Questions
- What is the difference between balanced and unbalanced forces?
- Why do some objects keep moving?
- Why do objects fall to the ground?
- What are the factors that affect the gravitational force of an object?
- What are Newton’s Three Laws?
- Why are some materials attracted to each other while others repel?
- What are the characteristic properties of waves and how can they be used?
Conceptual Guiding Questions
- How can one describe physical interactions between objects and within systems of objects?
- Identify all the forces on an object.
- Describe real life events in terms of Newton’s Laws.
Authentic Learning Activities & Experimental Design
- How does the knowledge of the laws of motion and forces allow individuals to design solutions to real world problems? What are some possible applications?
- What are the benefits of digital signals to analog signals?
- What is the amount of force to keep an object from falling? (roller coasters, centripetal force, carnival games, and gravitron)
- How have engineers used their knowledge of the laws of motion and forces to increase the safety of an automobile? (automobile: seat belts, air bags, crumple zones; guard rails: breakaway end treatments/uprights, impact attenuator barrel)