SIMPLE HARMONIC MOTION (SHM)
TYPES OF WAVES
DOPPLER EFFECT
THE VOCAL CORDS
MUSICAL INSTRUMENTS
100
What type of motion occurs when an object moves back and forth around an equilibrium position?
Simple harmonic motion.
100
What type of wave requires a medium to travel?
Mechanical wave.
100
What effect explains the change in pitch of a siren when an ambulance passes by?
Doppler Effect.
100
What part of the body vibrates to produce the human voice?
Vocal cords.
100
What family of instruments produces sound through vibrating strings?
String instruments.
200
What is the maximum distance an object moves from its equilibrium position in SHM?
Amplitude.
200
What type of wave can travel through empty space?
Electromagnetic wave.
200
When a sound source moves toward you, does the pitch become higher or lower?
Higher.
200
In what organ of the body are the vocal cords located?
Larynx (voice box).
200
What instrument is played by blowing air through a tube and covering holes with fingers?
Flute.
300
What force always pulls an object back toward its equilibrium position in simple harmonic motion?
Restoring force.
300
In what type of wave do particles move parallel to the direction of the wave?
Longitudinal wave.
300
When a sound source moves away from you, what happens to the frequency you hear?
The frequency decreases.
300
What happens to the pitch of the voice when the vocal cords tighten?
The pitch becomes higher.
300
What type of instrument produces sound through vibrating air columns inside pipes or tubes?
Wind instruments.
400
What is the time required for one complete cycle of motion in SHM called?
Period.
400
In what type of wave do particles move perpendicular to the direction of the wave?
Transverse wave.
400
What common vehicle example demonstrates the Doppler Effect?
An ambulance or police siren passing by.
400
What is produced when air from the lungs passes through vibrating vocal cords?
Sound or voice.
400
What keyboard instrument produces sound using vibrating strings struck by hammers?
Piano.
500
What device used in traditional clocks demonstrates simple harmonic motion by swinging back and forth?
Pendulum.
500
What type of wave forms when two waves move in opposite directions and create nodes and antinodes?
Standing wave.
500
What device used by police measures the speed of vehicles using the Doppler Effect?
Radar gun.
500
What body system provides the airflow needed for vocal cord vibration?
Respiratory system.
500
What property of sound determines whether a musical note is high or low?
Frequency (pitch).