Waves, Pulses & Sound is one of 9 topics in the Grade 11 Technical Sciences CAPS syllabus, covered across 3 lessons on Study Vault. Below are real practice questions from this topic with full worked answers.
Sample practice questions
Easy
1. In a transverse pulse, in what direction do the particles of the medium vibrate, relative to the direction of propagation?
At right angles (perpendicular) to the direction of propagation
Parallel to the direction of propagation
In a circular motion, unrelated to the direction of propagation
The particles do not vibrate at all
Answer: At right angles (perpendicular) to the direction of propagation — In a transverse pulse, the particles of the medium vibrate at right angles (perpendicular) to the direction the pulse propagates.
Easy
2. What is a wave defined as?
A succession of pulses
A single disturbance in a medium
A type of particle
A region where no vibration occurs
Answer: A succession of pulses — A wave is defined as a succession of pulses -- a continuous, repeating disturbance rather than a single one.
Medium
3. Give ONE term for the maximum displacement of a particle from its rest (equilibrium) position on a wave.
Answer: amplitude — Amplitude is defined as the maximum displacement of a particle from its rest (equilibrium) position.
