Physics Kinematics and Dynamics Concepts

Questions and Answers

What is the 4th kinematic equation?

∆x = 1/2(Vf + Vo)t

What is the relationship between conservative force and potential energy?

F = -dU/dx

What is the essential collision equation?

V1 - V2 = -(V1' - V2')

What are the helpful collision equations?

V1' = (m1 - m2)/(m1 + m2)V1 and V2 = 2m1/(m1+m2)V1 Signup and view all the answers

What are the non-slip conditions for an object?

Vcm = rw and acm = ra (r alpha) Signup and view all the answers

What is the parallel axis theorem?

I = Icm + md^2 Signup and view all the answers

What are the conditions for conservation of momentum?

Fext = 0 = dp/dt Signup and view all the answers

What is the condition for simple harmonic motion (SHM)?

d^2x/dt^2 = a = -w^2x Signup and view all the answers

What is the formula for velocity in simple harmonic motion (SHM) and maximum velocity?

V = -Awsin(wt) and Vmax = Aw Signup and view all the answers

What is the formula for acceleration in SHM and maximum acceleration?

a = -Aw^2cos(wt) and amax = Aw^2 Signup and view all the answers

What is the formula for arc length?

s = rø Signup and view all the answers

Study Notes

Kinematic Equations

Fourth kinematic equation: ∆x = 1/2(Vf + Vo)t, relating displacement, initial and final velocity, and time.

Forces and Energy

The relationship between conservative forces and potential energy is given by: F = -dU/dx, where F is the force and U is potential energy.

Collision Equations

Essential collision equation: V1 - V2 = -(V1' - V2'), represents the relationship between initial and final velocities in one-dimensional elastic collisions.
Helpful collision equations:
- V1' = (m1 - m2)/(m1 + m2)V1, calculates the final velocity of object 1 after collision.
- V2 = 2m1/(m1+m2)V1, calculates the final velocity of object 2 after collision.

Rotational Motion

Non-slip conditions are stated as Vcm = rw (where Vcm is the center of mass velocity, r is radius, and w is angular velocity) and acm = ra (with a being linear acceleration and alpha as angular acceleration).

Moment of Inertia

Parallel axis theorem formula: I = Icm + md², where I is the moment of inertia about an arbitrary axis, Icm is the moment of inertia about a parallel axis through the center of mass, m is mass, and d is the distance between the axes.

Momentum Conservation

Conditions for conservation of momentum: Fext = 0 implies that net external force is zero, resulting in dp/dt = 0, meaning momentum is conserved.

Simple Harmonic Motion (SHM)

Condition for simple harmonic motion is given by d²x/dt² = a = -w²x, where x is displacement and w is angular frequency.
Velocity for simple harmonic motion formulated as V = -Awsin(wt) with Vmax defined as Vmax = Aw, where A is amplitude and wt is angular position over time.
Acceleration for simple harmonic motion expressed as a = -Aw²cos(wt), with maximum acceleration amax = Aw².

Circular Motion

Arc length is defined as s = rø, where s is arc length, r is radius, and θ is angle in radians.

Description

This quiz covers fundamental concepts in physics including kinematic equations, forces and energy, collision equations, and rotational motion. It explores the relationships between velocity, acceleration, and force through various equations and theorems. Test your understanding of these critical principles!