Physics Final Test (Multiple choices)

_____ is transferred through the medium from the wave source.

• Energy
• Wavelength
• Velocity of a wave

Most of the periodic waves are represented by ____.

• sine graph
• distance graph
• time graph

The speed of water waves depends on the ____ of water.

• amplitude
• length
• depth

X-rays are _____.

• electromagnetic waves
• mechanical waves
• seismic waves

The _____ is a convenient apparatus for demonstrating the water waves.

• habour walls
• ripple tank
• radio antenna

The product of the period and the frequency is equal to _____.

• wavelength
• one
• velocity

The wavelength and velocity of the wave change in ___ of wave.

• diffraction
• refraction
• reflection

Elephants can communicate with _____

• ultrasound
• infrasound
• 20000 Hz

Sound waves propagates as a series of ____.

• compression and rarefaction
• pressure
• vibrating medium

Lighthouses emit _____ beam of light

• parallel
• convergent
• divergent