Keentune
Adaptive skill practice — find your level, get sharper.

Physics practice

Falling objects
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On the airless Moon, a hammer and a feather are dropped side by side. What happens?
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Motion, forces, energy, waves, and electricity
Physics practice across the core topics — motion and kinematics, Newton’s laws and forces, work, energy and power, momentum, waves and sound, electricity and magnetism, thermodynamics, and a taste of modern physics. Difficulty scales from concepts and units to multi-step problem solving, with a teaching explanation after every answer. Aligned to high-school/AP Physics, the ACT science reasoning, and the physics on the MCAT.
• Meets you at your level — never too easy, never too hard.
• Adapts every question to how you’re doing.
• Tracks your level over time. Skill practice, not a test.

New here? Read the Physics guide

A free 11-minute primer — the mental model, the mistakes beginners make, and what to practice first.

Curriculum

235 concepts across 31 chapters, from foundations through advanced practice — each one a concept the adaptive question bank can teach and test.

A. Measurement, units, and vectors

8

B. Motion in one dimension

7

C. Motion in two and three dimensions

7

D. Newton's laws of motion

8

E. Applications of Newton's laws

7

F. Work, energy, and power

7

G. Potential energy and conservation of energy

8

H. Momentum, impulse, and collisions

7

I. Rotational motion

7

J. Angular momentum, rolling, and equilibrium

8

K. Gravitation and orbits

8

L. Fluids

7

M. Oscillations

7

N. Waves and sound

10

O. Temperature, heat, and the kinetic theory of gases

8

P. The first law of thermodynamics

7

Q. The second law, engines, and entropy

7

R. Electric charge, field, and Gauss's law

8

S. Electric potential and capacitance

8

T. Current, resistance, and DC circuits

8

U. Magnetic forces and fields

8

V. Electromagnetic induction and AC circuits

8

W. Electromagnetic waves

8

X. Geometric optics

7

Y. Wave optics

8

Z. Special relativity

7

AA. Quantum physics and the atom

8

AB. Nuclear and particle physics

8

AC. Energy resources and electric power generation

8

AD. Cosmology and the expanding universe

7

AE. Household electricity and electrical safety

6
View the full curriculum →
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Physics on exams

Physics is one of the skills tested on these exams. Each prep page lays out what the real test covers and where this skill fits.
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