AP Physics 1- All Formulas

AP Physics 1- All Formulas

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Section 1

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If time, Yo and Yf are known, then use

Front

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Mar 1, 2020

Cards (58)

Section 1

(50 cards)

If time, Yo and Yf are known, then use

Front

Yf - Yo = V0t + 1/2at^2 (Projectile Motion Q9)

Back

Static Friction

Front

Friction force between two objects that aren't moving.

Back

Is velocity at all related to force?

Front

Force is not directly proportional to velocity.

Back

Rotational Kinematics

Front

Back

Two, different massed, objects get dropped at the same height, which one reaches the ground first (no external forces Ex: Air Resitence)?

Front

They hit the ground at the same time because each object has different forces, but the lighter object speeds up faster than the larger object (but the larger object has a greater force once its moving) (Kinematics & Free Fall Q2)

Back

Kinetic Energy is only conserved in an

Front

Elastic Collision

Back

Equation for Centripetal Acceleration

Front

Back

Velocity in the x-direction is always

Front

independent from the velocity in the y-direction (Projectile Motion Q6)

Back

Connected objects share the same

Front

Force (Forces and Straight Line Motions Q8)

Back

Force

Front

Push/pull applied by one object on another

Back

Power

Front

Energy/time

Back

Torque

Front

t = Fd | Fdcosθ Fdsinθ

Back

System

Front

several objects that can be treated as one.

Back

If there are non-conservative forces then mechanical energy is

Front

not conserved

Back

Non Conservative Force

Front

Forces that do not store energy are called nonconservative or dissipative forces. Friction is a nonconservative force, and there are others. Any friction-type force, like air resistance, is a nonconservative force. The energy that it removes from the system is no longer available to the system for kinetic energy.

Back

Work (W)

Front

W = F Δx | Fdcosθ Fdsinθ

Back

An object Accelerates if

Front

it changes velocity and/or direction (Disp,Vel, Acc Q2)

Back

Five principal motion variables

Front

Initial velocity, final velocity, displacement, acceleration, time

Back

Average Speed is

Front

Total Distance / Total Time (Disp,Vel, Acc Q1)

Back

Net Force

Front

Single force that replaces all individual forces acting on an object. Same direction (+) opposite direction (-)

Back

Vectors always line up

Front

tip to tail (Vectors in 2D Q6)

Back

Centripetal Accelertaion

Front

ac= v^2/r

Back

If time is known, which component(x or y) does not matter?

Front

y-component (Projectile Motion Q2)

Back

Universal PE of gravity

Front

-Gm1m2/d | G= Universal gravitational constant d= distance between the objects

Back

Work for non conservative forces

Front

Wnc = (KEf - KEi) + (PEf - PEi).

Back

Force of friction

Front

Ff = uFn (coefficient of friction times the force normal)

Back

Subtracting a vector is the same as

Front

adding its opposite (Vectors in 2 Dimensions Q4)

Back

Elastic Potential Energy

Front

1/2kx^2

Back

Translation KE

Front

1/2mv^2

Back

Newton's 1st Law States

Front

an object will not accelerate unless a net external force acts on it (Newton's Laws Q2)

Back

Force of Friction is always parallel or perpendicular?

Front

parallel to the surface

Back

Rotational KE

Front

1/2Iw^2

Back

Kinematic Equations

Front

V = Vo + at X = Xo + Vot + 1/2at^2 V^2 = Vo^2 + 2a(X - Xo)

Back

Kinetic Friction

Front

Moving object is being acted upon by friction on the opposite direction.

Back

The direction of the average acceleration vector is

Front

the direction of the change(difference vf - vi) of the velocity vectors (Vectors in 2 Dimensions Q5)

Back

The period is

Front

the amount of time for a motion to complete one full cycle

Back

Momentum (p)

Front

mass * velocity | P=mv

Back

Conservation of momentum

Front

0 = Δpi + Δpf

Back

Center of Mass Equation

Front

xcm = m1x1 + m2x2..../M | x is postion, m is mass, M is total mass of the system

Back

Conservative Force

Front

If a body is under the action of a force that does no net work during any closed loop, then the force is conservative. If work is done, the force is nonconservative.

Back

Work Energy Theroem

Front

W = ΔKE + ΔPE

Back

Newton's Universal Law of Gravity is

Front

Back

Gravitational PE

Front

mgh

Back

Newton's third law

Front

The force of object A on B is equal in the opposite direction as the force on B on A

Back

Work is only done if

Front

Force is exerted on an object and the object moves parallel to its force

Back

Momentum is conserved in

Front

all collisions

Back

Newton's second law

Front

F = ma

Back

Impulse Momentum Theorem

Front

Δp = F * Δt

Back

Impulse (I)

Front

Force time | I = Ft I = Δp

Back

angular velocity

Front

angular velocity = velocity/radius

Back

Section 2

(8 cards)

PE gravitational

Front

mgh & Gm1m2/d

Back

KE rotational

Front

Back

Rotational Impulse Momentum Theorem

Front

ΔL = torque * Δt

Back

Newton's Second Law for Rotation

Front

Back

Angular Momentum

Front

angular momentum = torque * Δt | p = mvr

Back

Gravitational Force Between Planets

Front

Gm1m2 / d^2

Back

Rotational Inertia

Front

I = mr^2

Back

Gravitational Field Equation

Front

Back