| 1 |
A sound wave is a. |
- A. Transvers wave
- B. Longitudinal wave
- C. Standing wave
- D. Sometimes reverse and sometime longitudinal
|
| 2 |
Sound of frequency higher than 20,000 Hz are called. |
- A. Infrasound
- B. Noise
- C. Ultrasonic
- D. Music
|
| 3 |
A healthy human ear can hear sound of frequencies from about |
- A. 40 Hz to 40,000 Hz
- B. 10 Hz to 20,000 HZ
- C. 20 Hz ti 40,000 Hz
- D. 30 Hz to 20,000 Hz
|
| 4 |
Objective that vibrate slowly have pitch that is. |
- A. High
- B. Loud
- C. Soft
- D. Low
|
| 5 |
Speed of a wave can be calculated by |
- A. Wavelength + Frequency
- B. Wavelength x frequency
- C. Wavelength- frequency
- D. Wavelength / frequency
|
| 6 |
In help us to distinguish a soft sound from a loud sound of the same frequency. |
- A. Pitch
- B. Loudness
- C. Quality
- D. Intensity
|
| 7 |
Captain Chuck Yeager became the first person to fly a plane faster than the speed of sound on. |
- A. October 14,1947
- B. September 14,1947
- C. November 14,1947
- D. December 14,1947
|
| 8 |
Sound waves travel most quickly through. |
- A. Solids
- B. Gases
- C. Air
- D. Liquids
|
| 9 |
It is combined to form a longitudinal wave. |
- A. Compression
- B. Rarefaction
- C. Compression or Rarefaction
- D. Compression and Rarefaction
|
| 10 |
Types of waves are |
- A. Two
- B. Three
- C. Four
- D. Five
|
