
PHY.912.1.b. Students know that when forces are balanced, no acceleration occurs; thus an object continues to move at a constant speed or stays at rest (Newton's first law).


PHY.912.1.c. Students know how to apply the law F = ma to solve onedimensional motion problems that involve constant forces (Newton's second law).


PHY.912.1.d. Students know that when one object exerts a force on a second object, the second object always exerts a force of equal magnitude and in the opposite direction (Newton's third law).

Investigation and Experimentation (912) 
INV.912.1 Scientific progress is made by asking meaningful questions and conducting careful investigations. As a basis for understanding this concept and addressing the content in the other four strands, students should develop their own questions and perform investigations. 

INV.912.1.a. Select and use appropriate tools and technology (such as computerlinked probes, spreadsheets, and graphing calculators) to perform tests, collect data, analyze relationships, and display data.
