Introduction To Waves

Multiple Choice

A wave is defined as:

• The propagation of the oscillations from atom to atom in a medium.

• The motion made by the air when it is heated by the sun.

• The chaotic motion of water in a pool.

• Motion in general.

• Oscillatory motion of atoms.

Multiple Choice

The two types of waves known in physics are called:

• clear waves & opaque waves

• animal waves & plant waves

• moving waves & magnetic waves

• electric waves & magnetic waves

• transverse waves & longitudinal waves

Multiple Choice

In a longitudinal wave...

• The particles in the medium oscillate in a direction transverse to the motion of the wave.

• The particles in the medium oscillate in the same direction of the motion of the wave.

• The particles oscillate randomly in the medium.

• The particles in the medium do not move.

• A and B

Multiple Choice

Wavelength is defined as:

• The time for a complete wave to pass by a location

• The number of waves per second passing by a location

• The distance between two consecutive identical points in a wave

• The distance between a crest and a trough

• The height of a crest

Multiple Choice

The amplitude of a wave is defined as:

• The distance from crest to crest

• The distance from the top of a crest to the center line

• The distance between two points at the same phase

• The distance a wave travels in one second

• None of the above

Multiple Choice

A sound wave coming from a ringing telephone has a frequency of 262 Hz, and its wavelength is 2 m. What is the speed of this sound wave?

• 424 m/s

• 254 m/s

• 262 m/s

• 524 m/s

• 100 m/s

Multiple Choice

A hiker shouts toward a vertical cliff and the echo is heard 4 seconds later. If the speed of the sound in air is 343 m/s; what is the distance between the hiker and the cliff?

• 456 m

• 1372 m

• 686 m

• 731 m

• 2140 m

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