Physics Review Flashcards: Mirrors, SHM, and Wave Speed

Flashcards covering plane mirror reflection geometry, position calculations in simple harmonic motion, and transverse wave velocity dependencies on material density.

What is the angle between a horizontal ruler and its image if the angle between the ruler and a vertical plane mirror is $30^\circ$?

$$60^\circ$$

In Simple Harmonic Motion (SHM), at what position $x$ will the speed of the mass be half of its maximum speed $v_{\text{max}}$?

$$x = v_{\text{max}}\sqrt{\frac{3m}{4k}}$$

What is the relationship between potential energy ($PE$), total mechanical energy ($M.E$), and kinetic energy ($KE$) used to solve for position $x$ in SHM?

$$PE = M.E - KE$$

How is the linear density $\mu$ of a string related to its density $\rho$ and cross-sectional area $A$?

$$\mu = \rho A$$

For a string under tension with constant length and cross-sectional area $A$, how does the transverse wave velocity $v$ relate to the material density $\rho$?

$$v \propto \frac{1}{\sqrt{\rho}}$$