MYP 2 Diagnostic Assessment

Oscillatory motion around an equilibrium point involves:

• Uniform motion

• Periodic displacement

• Linear motion

• Circular motion

In longitudinal wave motion, particles of the medium move:

• Perpendicular to the wave direction

• Parallel to the wave direction

• In a circular path

• Randomly

The key dimensions of a wave include:

• Speed and frequency

• Amplitude, wavelength, and frequency

• Speed and wavelength

• Frequency and speed

The speed of sound waves in a medium is affected by:

• The medium's density and elasticity

• Only temperature

• The amplitude of the wave

• The frequency alone

Sound transmission through air occurs due to:

• Rarefaction and compression

• Reflection and refraction

• Diffraction and interference

• Oscillation and vibration

The human ear functions as a sound detector by:

• Amplifying sound waves

• Converting sound waves into electrical signals

• Filtering out low frequencies

• Reflecting sound waves

The subjective experience of sound is characterized by:

• Color and brightness

• Volume and pitch

• Wavelength and frequency

• Speed and amplitude

Echolocation is used by:

• Bats and dolphins

• Birds and insects

• Humans and cats

• Fish and amphibians

Ultrasonic imaging relies on:

• High-frequency sound waves

• Low-frequency sound waves

• Visible light

• Infrared radiation

The decibel scale measures:

• Wavelength of sound

• Amplitude of sound

• Frequency of sound

• Speed of sound