Unit 2 Force and Translational Dynamics

9 topics · 137 questions, each explained

2.1 Systems and Center of Mass 9 ideas · 16 questions
Interactions set a system's properties · When a system counts as one object · Energy and mass can cross the boundary · Parts can behave differently from the whole · Internal structure affects the analysis · Outside changes can alter the structure inside · Center of mass lies on lines of symmetry · Calculating the center of mass · Modeling a system as a point at its center of mass
2.2 Forces and Free-Body Diagrams 6 ideas · 12 questions
Force · Contact force · Free-body diagram · Environment · Center-of-mass dot · Coordinate axes
2.3 Newton’s Third Law 3 ideas · 13 questions
Newton's third law · Internal force · Tension (unit: N)
2.4 Newton’s First Law 5 ideas · 11 questions
Net force · Translational equilibrium · Newton's first law · Balance along separate axes · Reference frame
2.5 Newton’s Second Law 3 ideas · 9 questions
Unbalanced forces · Newton's second law · External force
2.6 Gravitational Force 12 ideas · 28 questions
Newton's law of universal gravitation · Field · Weight · Constant gravitational force model · Gravitational field strength near Earth's surface · Apparent weight · Apparent weight of an accelerating system · Apparent weightlessness · Noninertial reference frame · Inertial mass · Gravitational mass · Equivalence of inertial and gravitational mass
2.7 Kinetic and Static Friction 5 ideas · 17 questions
Friction force F_f · Coefficient of kinetic friction μ_k · Static friction · Slipping (sliding) · Coefficient of static friction μ_s
2.8 Spring Forces 3 ideas · 9 questions
Ideal spring · Hooke's law · Equilibrium position (object–spring system)
2.9 Circular Motion 6 ideas · 22 questions
Centripetal acceleration, a_c · Net force in circular motion · Tangential acceleration, a_t · Net acceleration in circular motion · Uniform circular motion · Satellite in circular orbit

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