• # AP Physics 1

AP Physics 1: Algebra-Based covers topics and concepts typically included in the first semester of an algebra-based, introductory college-level physics course.  Topics include kinematics (motion), dynamics (forces), circular motion & gravitation, simple harmonic motion, momentum & impulse, energy & work, rotational motion & torque, electric charge & electric force, DC circuits (resistors only), and mechanical waves & sound.  The course focuses on high-level understanding of concepts, experimental design and critical thinking, and prepares students for the AP Physics 1 exam in May.

• # Dynamics (Forces) & Gravitation

#### Notes pp. 200–278

In this chapter you will learn about different kinds of forces and how they relate.

• Newton's Laws and Forces describe basic scientific principles of how objects affect each other.
• Free-Body Diagrams describes a way of drawing a picture that represents forces acting on an object.
• Forces Applied at an Angle, Ramp Problems, and Pulleys & Tension describe some common situations involving forces and how to calculate the forces involved.
• Friction and Aerodynamic Drag describe situations in which a force is created by the action of another force.
• Newton's Law of Universal Gravitation describes how to calculate the force of gravity caused by massive objects such as planets and stars.

One of the first challenges will be working with variables that have subscripts.  Each type of force uses the variable F.  Subscripts will be used to keep track of the different kinds of forces.  This chapter also makes extensive use of vectors.

Another challenge in this chapter will be to "chain” equations together to solve problems.  This involves finding the equation that has the quantity you need, and then using a second equation to find the quantity that you are missing from the first equation.

#### Skills learned & applied in this chapter:

• Solving chains of equations.
• Using trigonometry to extract a vector in a desired direction.
• Working with material-specific constants from a table.
• Estimating the effect of changing one variable on another variable in the same equation.
• Newton's Laws of Motion File 489.9KB PDF document
• Linear Forces File 645.6KB PDF document
• Gravitational Fields File 466.5KB PDF document
• Free-Body Diagrams File 628.8KB PDF document
• Newton's Second Law File 526.5KB PDF document
• Force Applied at an Angle File 728.3KB PDF document
• Ramp Problems File 693.3KB PDF document
• Pulleys & Tension File 489.1KB PDF document
• Friction File 815KB PDF document
• Universal Gravitation File 485.9KB PDF document
• Human Free-Body Diagram File 473.3KB PDF document
• Animation: Gravitation File 100.7KB Flash animation
Kinematics (Motion)Rotational Dynamics