ap physics 1
👉 AP Physics Essentials
👟 Unit 1 - Kinematics
1.1Position, Velocity, and Acceleration
🌀 Unit 2 - Dynamics
2.5Newton's Third Law and Free-Body Diagrams
🚀 Unit 3 - Circular Motion
3.0Unit 3 Overview: Circular Motion and Gravitation
3.3Gravitational and Electric Forces
3.4Gravitational Field/Acceleration Due to Gravity on Different Planets
3.5Inertial vs. Gravitational Mass
3.7Free-Body Diagrams for Objects in Uniform Circular Motion
⚡️ Unit 4 - Energy
4.1Open and Closed Systems: Energy
4.2Work and Mechanical Energy
⛳️ Unit 5 - Momentum
🎸 Unit 6 - Simple Harmonic Motion
6.1Period of Simple Harmonic Oscillators
🎡 Unit 7 - Torque & Rotational Motion
7.2Torque and Angular Acceleration
7.3Angular Momentum and Torque
💡 Unit 8 - Electric Charges & Electric Force
8.0Unit 8 Overview: Electric Charge and Electric Force
8.1Conservation of Charge
🔋 Unit 9 - DC Circuits
9.1Definition of a Circuit
9.3Ohm’s Law, Kirchhoff’s Loop Rule (Resistors in Series and Parallel)
🔊 Unit 10 - Mechanical Waves & Sound
10.1Properties of Waves
10.3Interference and Superposition (Waves in Tubes and on Strings)
✍️ Free Response Questions (FRQs)
Quantitative / Qualitative Translation
⏱️ 2 min read
June 8, 2020
An observer in a reference frame can describe the motion of an object using such quantities as position, displacement, distance, velocity, speed, and acceleration.
A coordinate system in relation to which judgments can be made, usually from an observer’s point of view, is known as a frame of reference. A frame of reference moving with constant velocity is known as an inertial frame of reference. 🙋♀️🙋♂️
Image courtesy of Giphy.
🎥Watch: Khan Academy - Angular Velocity and Speed
Forces are described by vectors.
Quantities that are described by a size (magnitude) and a direction (ex. East, Up, Right, etc.)
Example: The gas station is five miles west from the car
Force, Displacement, Velocity, and Acceleration are vector quantities
A force can be simply described as a push or pull. We know that a push or pull has both magnitude and direction (therefore, it is a vector quantity) and can vary considerably in both regards.
A force exerted on an object is always due to the interaction of that object with another object.
Force is always the result of an interaction of two or more objects. No object has force on its own. Therefore, no object can exert a force on itself. When you clap your hands, one hand exerts a force on the other. When you throw a ball, it exerts a force on your hand and your hand exerts a force on it.
If one object exerts a force on a second object, the second object always exerts a force of equal magnitude on the first object in the opposite direction.
Newton’s Third Law States, “For every action, there is an equal and opposite reaction.” Simply put, in every interaction, there is a pair of forces acting on the two interacting objects. The magnitude of the force on the first object equals the magnitude of the force on the second object. The direction of the force on the first object is opposite to the direction of the force on the second object. Forces always come in pairs - equal and opposite action-reaction force pairs.
🎥Watch: AP Physics 1 - Unit 3 Streams
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