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AP Physics C Mechanics: Vocabulary

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Section 1

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Spring Potential Energy

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Mar 1, 2020

Cards (24)

Section 1

(24 cards)

Spring Potential Energy

Front

Us Energy stored in a stretched or compressed spring. Measured in Joules. Us=½kx²

Back

Escape Velocity

Front

The velocity required to escape from the pull of an object's gravitational field.

Back

Scalar

Front

A quantity that includes magnitude only.

Back

Newton's Second Law

Front

∑F=ma. Net force = mass x acceleration

Back

Newton's First Law

Front

Law of Inertia. An object in motion (or at rest) will remain in motion at constant velocity (or at rest) unless acted upon by an unbalanced force.

Back

Torque

Front

τ A force's ability to cause an object to rotate, measured in Nm.

Back

Frequency

Front

f The number of cycles an object completes in a unit of time, measured in Hz.

Back

Vector

Front

A quantity that includes both magnitude and direction.

Back

Rotational Inertia or Moment of Inertia

Front

I The measure of how hard it is to change an object's rotational motion, in kgm²

Back

Distance

Front

Scalar. How far something travels. Direction does not matter. Always a positive value.

Back

Kinetic Energy

Front

K Energy of motion. Measured in Joules. K=½mv²

Back

Gravitational Potential Energy

Front

Ug Energy stored by virtue of an object's position within a gravitational field. Measured in Joules. Ug=mgh

Back

Dot Product

Front

Multiplying two vectors by multiplying parallel components. Result is a scalar. A·B=ABcosθ=AxBx+AyBy

Back

Angular acceleration

Front

α The change in rotational velocity, in rad/s²

Back

Acceleration

Front

Vector. Rate of change of velocity. a=dv/dt

Back

Period

Front

T The time required for a repeating motion to complete one cycle of its motion, usually measured in seconds.

Back

Simple harmonic motion (SHM)

Front

This occurs where there is a restoring force on an object that is proportional to the displacement from the equilibrium.

Back

Cross Product

Front

Multiplying two vectors by multiplying perpendicular components. Result is a vector. AxB=ABsinθ

Back

Displacement

Front

Vector. How far something is from its starting position. Change of position. (∆x=x-x₀)

Back

Work

Front

W The product of a force applied over a distance. Measured in Nm or Joules.

Back

Newton's Third Law

Front

Action-Reaction. For every action force, there is an equal and opposite reaction force.

Back

Velocity

Front

Vector. Speed and direction. Displacement divided by time.

Back

Speed

Front

Scalar. Distance divided by time.

Back

Angular Velocity

Front

ω The number of rotations something completes in an amount of time, in rad/s.

Back