The science class was testing the motion of particles as a response to temperature. In the experiment the students used a substance that, when added to water, had the physical change of showing a different color when the chemical reaction has occurred The mix was added to three different beakers with water heated at different temperatures (one at the time) The students observed that the beaker with hotter temperature took less time te change the color Which would be a good explanation of this experiment at a molecular level?

answer: a ball

explanation: because it will bounce

when two balls of the different masses are dropped from equal height, they reach the ground at the same time .this is because they experience the same acceleration.

the acceleration is independent of mass.

thus when they are dropped they will always maintain the same velocity and travel the same distance (neglect air resistance of course) at the same time.

note: the given question is incomplete.

complete question is given below.

which is an example of kinetic energy?

a. the energy stored in ethanol  

b. a hockey puck sliding across the ice  

c. a compressed spring  

d. a ball sitting at the top of a ramp

solution: the kinetic energy is the energy posses by the virtue of the motion of the object.

in the given options, a, c and d are the example of potential energy because it is the energy posses by the virtue of the rest of the object. but option b has the kinetic energy as the object is in motion.

hence, a hockey puck sliding across the ice   is the apex example of kinetic energy.

so, the option (b) a hockey puck sliding across the ice   is the correct option.