Major: Physical Science

Study lessons

1. 1

   Atomic Structure and Chemical Bonding

   Read periodic trends, write electron configurations, and predict whether two elements form an ionic or covalent bond.

   14 min
2. 2

   Stoichiometry, Gases, and Solutions

   Convert between mass and moles, balance equations, apply the gas laws, and compute solution concentrations.

   15 min
3. 3

   Acids and Bases, Thermodynamics, Kinetics, and Equilibrium

   Classify acids and bases, compute pH, tell endothermic from exothermic, and predict how equilibrium shifts under stress.

   15 min
4. 4

   Mechanics: Motion, Forces, Energy, and Momentum

   Solve kinematics problems, apply Newton's laws, and use work, energy, and momentum to explain and predict motion.

   15 min
5. 5

   Electricity, Magnetism, Electronics, and Modern Physics

   Analyze circuits with Ohm's law, relate electricity to magnetism, and recall the core ideas of modern physics and radioactivity.

   15 min
6. 6

   Light, Optics, Waves, Earth, and Space

   Describe waves and the electromagnetic spectrum, trace reflection and refraction, and recall key earth-science and astronomy facts.

   15 min

Section practice test

3 test sets covering the whole Major: Physical Science section, 90 original questions with explanations. After you finish the lessons above, prove it here. Randomized every run.