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
Gravitational forces are exerted at all scales and dominate at the largest distances and mass scales.
The Force of Gravity or Weight is given as mass x acceleration due to gravity. From this equation, we can gain the knowledge that the larger an object’s mass, the more magnitude Force of Gravity will garner.
Image courtesy of memecenter.com.
Moreover, on astronomical scales gravity dominates over the other fundamental forces: the strong force, electromagnetic force, and the weak force. Despite the fact that gravity is usually the weakest of the four fundamental forces there are two key factors that help it dominate on this specific scale: gravity has an infinite range, and there is no negative mass.
In terms of typical strength;
The Strong Force - binds the fundamental particles of matter together to form larger particles
Electromagnetic Force - acts between charged particles
The Weak Force - particle decay
Gravity - the attraction between two objects that have mass or energy
⟶ Still feeling a little confused about The Four Fundamental Forces? Don’t worry! Check out this video from Khan Academy for more practice!
The strong and weak forces are very short-ranged, so outside of the nuclei of atoms, these forces quickly become zero. Moreover, while there is no negative mass there is such a thing as a negative electric charge that affects electromagnetic forces. If you place a single positive electric charge near a single negative electric charge the negative charge cancels out the positive charge somewhat.
📖Read: wtamu - Gravitational Domination
🎥Watch: AP Physics 1 - Unit 3 Streams
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