Replace the pads, and the rotors.
You need to change the brake pads and the rotors.
Brakes absorb the kinetic energy in the form of heat and sometimes sound. When hot enough brakes can emit light.
Wow, that's scary. A metal cup is a cup that is made out of metal. And a cup is a thing that can have water or any other liquids, solids, or gases in it. Metal is a thing that can be used to make motorcycles,bikes,cars,refridgerators,freezers, and lots of other stuff. And a metal cup can be used to make sound. Yes, fun with sound.
no this a opaque material opaque is a material where light cannot pass through so it cannot pass through
A dull thud as it is a very soft metal, rather like putty.
Sound travels faster through metal than through air. Sound waves can propagate faster through denser materials because the atoms are much closer to each other. The clarity of the sound is also maintained better in dense materials because the likelihood of an atom not transmitting it's "vibration" to another atom is much smaller with so many atoms packed together.
Could be your brakes. If you have drum brakes not disk brakes that sound will happen when your shoes are worn down to the rivets. Some of the hardware such as springs, may have came off as well, which will make the loose metal sound.
Check if muffler is loose, check if rear brakes are worn out & grinding
Could be the brakes are metal to metal.
Your pads sound low-it's the wear indicators or you have metal-metal contact.
The grinding sound means that the brake pads are worn down to metal and that sound you hear is metal to metal. you need to have the pads changed, the problem is that you will more than likely have to change the rotors also. The way to avoid this in the future is when you notice your brakes are making a squealing sound that means that the pads will need to be changed soon.
The squealing sound you hear when your car brakes are wearing out is referred to as a "squealer." This indicator is a strip of metal that when the brake pad wears down makes contact with the rotor making a metal on metal noise.
Sounds like you need new brakes. When they get worn down they make a metal on metal sound.
That sound it the air being aloud to escape from the air system though the quick release valve. This usally happens when the driver has applied the parking brakes. But, it can happen during other times you dont want it to.
The sound is most likely the brakes squealing. Check the pads to make sure that the metal part isn't cutting into the rotor.
You may need to check your brakes or the rollers on your brakes
Typical sound of Tin if a metal bar is bent. This screaming of Tin is coming from the friction/ shearing of the metal crystals.
A knocking sound while your car is moving is probably coming from the engine. A certified mechanic will be able to perform diagnostic testing.