your keys?
wheel bearing
A single knocking noise when braking or turning can be caused by a faulty axle. The cost of replacement is usually around 1,000 dollars.
what would cause a rubbing noise on drivers side front wheel especially when braking ( I replaced rotor and wheel bearings are good) ?
Normally caused by worn steering or suspension components.
The kids in the back.
The pads may be worn out. have it checked out.
Brake linings worn? Wheel bearing?
A grinding noise when braking can occur when the brake pads are going bad. You are hearing the brake grinding on the metal discs.
Brakes
Bad wheel bearing
Perhaps a pebble got stuck in either cv joint or in behind brake caliper
You need to check the brake pads to see if the brake pad shims are broke, missing or loose. This is most likely the source of your noise.