The Drop Tower practice questions — Grade 11 Physics

Boss lesson · The Drop Tower

Exam-hall rules, top of the tower

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Exam-hall rules, top of the tower

This is the boss. No calculator: $g$ rounds to 10 and every number is chosen to fit in your head, the way a well-set final always is. One ride, worked line by line, and every answer feeds the next: write them down as you go.

The whole chapter rides along — energy banked by height, cashed as speed, taxed by the brakes, and re-banked by the winch against the clock. 5★ under par here is the chapter crown. Enjoy the drop.

$U = m g h$

$U$ = Potential energy (energy)
$m$ = Mass (mass)
$h$ = Height (length)

Gravitational Potential Energy (U = mgh) solver →

$E_k = \tfrac{1}{2} m v^{2}$

$E_k$ = Kinetic energy (energy)
$m$ = Mass (mass)
$v$ = Speed (speed)

Kinetic Energy solver →

$W = \tfrac{1}{2} m \left(v^{2} - v_0^{2}\right)$

$W$ = Net work (energy)
$m$ = Mass (mass)
$v$ = Final speed (speed)
$v_0$ = Initial speed (speed)

Work–Energy Theorem solver →

$P = \frac{W}{t}$

$P$ = Power (power)
$W$ = Work or energy (energy)
$t$ = Time (time)

Power (P = W/t) solver →

no calculator in the boss room — the numbers are chosen to fit in your head