vibration

A string vibrates and produce 100 vibrations in 10 s. What is the frequency of the string?

• 0.1 Hz

• 1 Hz

• 10 Hz

• 1000 Hz

What is mean by period?

• Number of vibration in certain time

• Distance from peak to peak

• Time taken to complete one vibration

• The largest displacement from equilibrium position

A bee flies and the wings has frequency 20 Hz. What is the period of the wings?

• 0.1 s

• 1 s

• 0.5 s

• 0.05 s

Sound wave categorized as ...

• transversal wave

• electromagnetic wave

• heat wave

• longitudinal wave

The pendulum is released from A. One complete vibration is ...

• from A to D

• from A to G

• from A back again to A

• from A to F

A sound is a vibration created by an object that travels through a medium, like air.

• true
• false

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

wavelength is 

• the distance between two consecutive points on a wave that are moving in the same way.
• a disturbance that repeats regularly in space and time and that transmit energy from one place to the other with no transfer of matter
• energy from the wind that causes a turbine to turn in order to generate electricity
• the vertical force exerted by a mass as a result of gravity

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

This wave is a 

• transverse wave
• longitudinal wave
• radioactive wave
• none of these

Tags

NGSS.MS-PS4-1

This wave is a 

• transverse wave
• longitudinal wave
• ocean waves
• none of these

Tags

NGSS.HS-PS4-1

Perhatikan gambar menunjukkan sebuah pegas yang diberi beban yang sedang bergetar. Pegas dan beban melakukan satu getaran apabila bergerak dari...

• A-B-C-B-A

• A-B-C-A-B

• B-A-C-A-B

• C-B-A-B-C