Your little sister, who is constantly hungry, begs you to make macaroni and cheese. As you heat up water on the stove, you think back to science class when you studied the changes in states of matter. Tell your sister what change in state occurs when water boils. Then explain to her why this change happens. (Hint: Think about the movement of the particles.)

a is the best answer your welcome

force is based upon mass and acceleration.the statement is not always true.

it can be explained from newton's second law of motion.

as per newton's second law of motion the rate of change of momentum is directly proportional to the applied force and takes place along the direction of force.

mathematically it can be written as -

                                              ⇒      

here   k is the proportionality constant whose value is 1.

                                                            [a is the acceleration=dv/dt]

hence we see that force not only depends on mass and acceleration but also on velocity and rate of change of mass. force f will depend on mass and acceleration only when mass is constant.

hence the statement that force is based upon mass and acceleration is false.