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?

<<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.

Certainly! Let's break it down.

"The clock fell onto the roof of the car and bounced through the windscreen" suggests that the clock initially landed on the roof of the car and then, due to the force of impact or some other cause, went through the windscreen.

On the other hand, "The clock fell onto the roof of the car and bounced on the windscreen" implies that the clock landed on the roof and then rebounded off the windscreen without actually going through it.

When a clock (or any object) smashes through a window, it means that the object forcefully enters and breaks the window. So, yes, it would crash, break, or smash the window.

Synonyms for "smash through" could include "shatter," "pierce," "penetrate," "destroy," or "burst." These words can convey the idea of forceful entry or breaking through a barrier.