The Complete Guide for High school & Basic College Physics.

Explore electrostatics through the behavior of positive, negative, and neutral charges, how unlike charges attract and like charges repel, and apply Coulomb's law to charge, distance, and electric field lines.

Explore electric field strength around and between charges, define the electric field as the region where a test charge experiences force, and use field lines to show direction and magnitude.

Examine electric field patterns around three charges arranged in a triangle, with Q3 negative and net force 13.83 N. Apply the Pythagorean theorem to determine Q3's magnitude in coulombs.

Apply Coulomb's law to two identical insulated spheres with +6 nanoC charges, then add a -2 nanoC third charge to calculate net electric field at point X.

Apply Coulomb's law to three charges in a line, with q3 = 5 nC at 2 cm and q2 = -2 nC at 3.5 cm, yielding q1 ≈ 6.53e-10 C.

Explains elastic and inelastic collisions, noting momentum and kinetic energy conservation in elastic events; derives ball y's initial velocity as 4 m/s west and a 200-newton collision force.

Explore electrostatics with a two-charge setup 0.75 m apart; draw field lines from the positive to the negative, and calculate a 0.256 N force to the right.

Calculate the electric field from a 4 nanocoulomb charge at 0.25 meters and deduce the initial and post-contact charge on two identical spheres in an electrostatics setup.

Use electrostatic force law on repelling y-sphere and x-sphere to deduce y-sphere charge magnitude 2.26×10^-6 kilom from a 3.05 N force at 0.2 m, then find tension at 10-degree angle.

Explore energy concepts through gravitational potential energy and kinetic energy, and apply the conservation of mechanical energy to relate height, velocity, and mass using Ep, Ek, and Em.

Apply conservation of mechanical energy to relate kinetic energy at B with potential energy at C, including friction on AB and the 7.5-degree incline, to find velocity and friction work.

Investigate Newton's second law through a static friction and motion transition, naming maximum static friction and kinetic friction, with applied force at 30 degrees, tension, and 5 kg mass.

Examine a balloon descending at 1.2 m/s from a 22 m height and a ball dropped from it, applying vertical motion equations to compute impact time and final velocity.

Explain elastic and inelastic collisions by comparing total kinetic energy before and after, and observe how masses and velocities influence whether objects move together or separately.

Apply momentum conservation and impulse to a truck-car collision, yielding a final velocity of 12.5 m/s and an impulse of 56,250 N, revealing an inelastic collision via kinetic energy.

Apply momentum conservation to two dancers with masses 52.5 kg and 42 kg to find a's initial velocity, then use impulse to find b's velocity after the push.