Can you explain me the difference between "the clock fell onto the roof of the car and bounced through the windscreen or bounced on the windscreen"

If a clock smashes through a window does it crash/break/smash the window?
What is a synonym for smash through?

2 answers

<<What is a synonym for smash through? >> penetrate; break through; crash through.

If a clock first hit the roof, it would bounce, and THEN might hit the windshield, break it and pass through; but if the car was moving, you'd expect it to bounce toward the rear of the car, not the windshield.

Break or smash (through) would be suitable verbs for what the clock does to the windshield.
DrWLS is correct.

The word "through" means that the clock smashed the window and then went INTO the car.

The word "on" means that the clock bounced on the windshield (broken or not) and then went on to another part of the outside of the car and maybe to the ground.