FeaturesHow It WorksFor ParentsPricingContactLog inStart free — no credit card needed →

Physics · Unit 2 · Waves · Wave properties

Compare light to a mechanical wave.

Practise this objective

AI-marked practice questions tied to QCAA mark schemes for this exact LO. Free to start.

Start free practice

Practice questions for this objective

Full questions, answers and worked solutions unlock when you start a free practice session.

Question 1

Two wave pulses are generated simultaneously: a sound pulse through air and a light pulse through a vacuum. Both travel towards a detector 300 m away. The diagram shows the displacement–time graphs recorded at the detector for each pulse. What key difference between light and mechanical waves does this experimental data demonstrate?

Worked answer
🔒 Start free to see full answer
Question 2

A diagram shows a transverse wave travelling through a stretched rope and an electromagnetic wave travelling through a vacuum. Which statement correctly compares a property of these two waves?

Worked answer
🔒 Start free to see full answer
Question 3

Which statement correctly compares light waves to mechanical waves?

Worked answer
🔒 Start free to see full answer
Question 4

Which property differentiates light from a mechanical wave?

Worked answer
🔒 Start free to see full answer
Question 5

A student investigates the propagation characteristics of light and sound. The diagram shows the particle displacement pattern for a sound wave travelling through air and the electric field oscillation pattern for a light wave travelling through vacuum. Which statement correctly compares these two waves?

Worked answer
🔒 Start free to see full answer
Question 6

The diagram shows a transverse wave on a string and a representation of a light wave. What is the key difference between these two types of waves?

Worked answer
🔒 Start free to see full answer
Unlock all 6 answers — free

More in Wave properties

← Previous
Analyse the amplitude, period, frequency and wavelength from graphs of transverse and longitudinal waves.
Next →
Compare transverse waves and longitudinal waves.
All LOs in Wave propertiesBack to full Physics syllabus