Physics Core Mechanics Formulas
Review 25 essential mechanics equations and definitions
What You'll Learn
Study foundational mechanics formulas with free physics flashcards. Learn motion, force, work, energy, momentum, and circular motion equations.
Key Topics
- Covers core kinematics and Newtonian mechanics equations
- Includes energy, power, momentum, and impulse
- Highlights units and variable meanings
- Great for high school and intro college physics
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How to study this deck
Start with a quick skim of the questions, then launch study mode to flip cards until you can answer each prompt without hesitation. Revisit tricky cards using shuffle or reverse order, and schedule a follow-up review within 48 hours to reinforce retention.
Preview: Physics Core Mechanics Formulas
Question
Average speed formula
Answer
speed = distance / time
Question
Velocity definition
Answer
Displacement per unit time
Question
Acceleration formula
Answer
a = Δv / Δt
Question
Kinematics: final velocity
Answer
v = v0 + at
Question
Kinematics: displacement (constant a)
Answer
x = x0 + v0t + 1/2 at^2
Question
Kinematics: no time equation
Answer
v^2 = v0^2 + 2aΔx
Question
Newton's 1st law
Answer
Object stays at rest or uniform motion unless net force acts
Question
Newton's 2nd law
Answer
F = ma
Question
Newton's 3rd law
Answer
For every action, there is an equal and opposite reaction
Question
Weight formula near Earth
Answer
W = mg
Question
Standard gravitational acceleration
Answer
g ≈ 9.8 m/s^2
Question
Friction formula (kinetic)
Answer
Fk = μkN
Question
Work formula
Answer
W = Fd cosθ
Question
Kinetic energy formula
Answer
KE = 1/2 mv^2
Question
Gravitational potential energy (near Earth)
Answer
PE = mgh
Question
Mechanical energy (basic)
Answer
E = KE + PE
Question
Power formula
Answer
P = W/t
Question
Linear momentum formula
Answer
p = mv
Question
Impulse-momentum theorem
Answer
J = FΔt = Δp
Question
Conservation of momentum applies in
Answer
Isolated systems (no net external force)
Question
Centripetal acceleration formula
Answer
ac = v^2/r
Question
Centripetal force formula
Answer
Fc = mv^2/r
Question
Hooke's law
Answer
F = -kx
Question
Spring potential energy formula
Answer
Us = 1/2 kx^2
Question
Unit of force
Answer
Newton (N)