A line of dominoes is knocked down. Which explanation is true?

Question

anincrease in acceleration caused an increase on force
an increase in force caused a decrease in acceleration
an increase in acceleration caused a decrease in force
an increase in force caused an increase in acceleration

Answer 1

The correct explanation in the context of a line of dominoes being knocked down is:

An increase in force caused an increase in acceleration.

This statement aligns with Newton's second law of motion, which states that force equals mass times acceleration (F = ma). When one domino falls, it exerts a force on the next domino, causing it to accelerate and fall as well. As the force applied to each subsequent domino increases, the acceleration of those dominoes also increases, leading to a chain reaction.