Hey there shea_069,
If the issue is for notification sounds, it's possible that the iPad may be in silent mode or have Do Not Disturb enabled. Check out this link to learn more: Adjust the volume on iPad - Apple Support. This link also provides information on how to change the volume in sounds and videos as well.
If this is a system issue, you may also find the steps on this page helpful: If you hear no sound or distorted sound from your iPhone, iPad, or iPod touch speaker - Apple Support.
1. If your device has a Ring/Silent switch, move the switch forward—toward the device's display—so that orange isn't showing. If you're using an iPad, you can also swipe down from the top-right corner to open Control Center and make sure that Silent Mode is off.
2. Open Settings > Focus > Do Not Disturb and make sure that Do Not Disturb is off.
There's also a section there labeled "If you want to try more steps on your own" which you should definitely run through.
1. Remove all screen protectors, films, or cases from your device.
2. Check the speaker opening to see if it's blocked or dirty. On iPhone only, make sure that the receiver isn't blocked or dirty.
3. If necessary, clean the speaker or receiver opening with a small, soft-bristled brush. Make sure that the brush is clean and dry.
4. Go to Settings > Sounds (or Settings > Sounds & Haptics), and drag the Ringer and Alerts slider back and forth a few times. If you don't hear any sound, or if your speaker button on the Ringer and Alerts slider is dimmed, your speaker might need service.
5. If you hear sound, try making a call with your iPhone and turn on speakerphone. On iPad or iPod touch, make a FaceTime call. If you still can't hear, or hear static or crackling, then your network or reception could be the issue. Try to call again later, or from a different location.
We hope this information helps you out.
Cheers!