CIE Physics IGCSE: Waves and Optics Comprehensive Assessment

Which type of wave has vibrations perpendicular to the direction of wave travel?

• Longitudinal waves
• Transverse waves
• Sound waves
• Compression waves

What equation relates wave speed, frequency, and wavelength?

• v = f × λ
• f = v ÷ λ
• λ = v ÷ f
• v = λ ÷ f

When light enters a more optically dense medium, what happens to its speed?

• Increases
• Decreases
• Remains constant
• Becomes zero

Which electromagnetic wave has the longest wavelength?

• X-rays
• Gamma rays
• Radio waves
• Ultraviolet light

What determines the loudness of a sound wave?

• Wavelength
• Frequency
• Amplitude
• Speed

In a plane mirror, what type of image is formed?

• Real and inverted
• Real and upright
• Virtual and upright
• Virtual and inverted

What happens to frequency when a wave enters a new medium?

• Increases
• Decreases
• Remains constant
• Becomes zero

Which phenomenon occurs when light travels from a dense to a less dense medium?

• Total internal reflection
• Dispersion
• Refraction
• Diffraction

What determines the pitch of a sound wave?

• Wavelength
• Amplitude
• Frequency
• Speed

What is the range of human audible frequencies?

• 10 Hz to 15,000 Hz
• 20 Hz to 20,000 Hz
• 5 Hz to 25,000 Hz
• 30 Hz to 18,000 Hz