As the bottom of the cup vibrates, waves of compressed air (sound waves) are created. The shape of the cup concentrates and amplifies the sound waves.

d. capable of existing with a variety of frequencies and a light wave has a single frequency. Sound is a mechanical wave and cannot travel through a vacuum. Light is an electromagnetic wave and can travel through the vacuum of outer space.

Sounds can be made louder or amplified in a number of ways. By providing more energy in making the sound its loudness can be increased. This would be achieved by beating a drum with greater vigour, blowing harder on the recorder or using more bodily energy in shouting louder.

All you do is put your phone into a cup or ceramic mug. A plastic drinking cup and a Styrofoam cup didn’t really make the music any louder, but it did make the bass sound a lot better. A cup made from glass worked the best.

Sound is a type of energy made by vibrations. When an object vibrates, it causes movement in surrounding air molecules. These molecules bump into the molecules close to them, causing them to vibrate as well.

Increase the volume limiter

1. Open the Settings app on your Android device.
2. Tap on “Sounds and vibration.”
3. Tap on “Volume.”
4. In the upper right corner of the screen, tap the three vertical dots, then tap “Media volume limiter.”
5. If your volume limiter is off, tap the white slider next to “Off” to turn the limiter on.

All you have to do is grab any empty, clean, and dry paper cup lying around your house and put your smartphone in it. That’s the whole trick, and it greatly amplifies the sound from your device.

1. Open your phone’s Settings app.
2. Tap Sound & vibration. Advanced.
3. Turn a sound or vibration on or off.

You can easily turn your favorite speaker into a Bluetooth speaker with an inexpensive Bluetooth receiver. Simply plug the Bluetooth receiver into your favorite set of stereo speakers via the standard 3.5mm jack (you might need an inexpensive adapter), then turn on both the Bluetooth receiver and your mobile device.

Windows

1. Open your Control Panel.
2. Select “Sound” under Hardware and Sound.
3. Select your speakers, then click Properties.
4. Select the Enhancements tab.
5. Check Loudness Equalization.
6. Click Apply.