Acceleration, fragment, star, Z-universe.

[STEP II 1999 Question 9 (Mechanics)]

Trigonometry, second order equation.

[STEP I 1999 Question 7 (Pure)]

Harmonic oscillator, second order equation, recurrence relation, difference equation.

[STEP III 1997 Question 6 (Pure)]

Bike, puncture, first order equation, approximation.

[STEP III 1996 Question 14 (Probability and Statistics)]

Functional equation, trigonometry, initial condition.

[STEP II 1996 Question 8 (Pure)]

Water tank, power law, steady rate, first order equation.

[STEP I 1996 Question 7 (Pure)]

Simple harmonic motion, SHM, damped, maximum, second order equations.

[STEP III 1995 Question 3 (Pure)]

Second order equation, substitution.

[STEP I 1995 Question 8 (Pure)]

Substitution, first order equation.

[STEP II 1993 Question 3 (Pure)]

Handmade ice-cream, first order differential equation.

[STEP I 1993 Question 9 (Pure)]