Why Is Steel Marble Faster Than Plastic Marble

Drop a marble into each container and screw the lids on firmly.

Why is steel marble faster than plastic marble.

While marble is slightly harder and denser than limestone both rate very low on the mohs scale a rating used to measure the hardness of stones. Air tends to make stuff fall slower especially light objects which is why the feather hits the ground last. This is due to gravity pulling everything to the ground at 9 8 m s correct. Glass cutting boards are very hard almost as hard as steel and will not score which is why these boards are notorious for dulling even the best of knives.

Did the marble travel faster as it went farther down the slope. On the other hand plastic hdpe and softwood cutting boards are given good scores on maintenance and chip risk which are great for your knives but come at the expense of the durability. Be prepared to watch the bottom to see which marble hits first. The answer is actually a historically very important problem known as the brachistochrone problem and was one of the problems which lead to the development of calculus of variations.

So after one second the object. When an object is in free fall gravity increases its velocity by 9 8 m s with every passing second. Hold one marble in each hand just above the surface of the liquid in each glass. As the elevation of the ramp increases so does the average speed of the marble right.

Limestone generally ranks at around a 3 on the scale while marble falls between 3 and 4. Marble and limestone lie at the opposite end of the hardness scale from granite. Since tennis balls and basketballs are quite heavy at least compared to feathers we don t easily notice the effect of air resistance on these although it s still there. This is why the old gravestones of the midwest are barely legible because acid rain created by factory pollution has dissolved a lot of the calcite in the limestone and marble gravestones.

3 tall containers with lids e g. For marble kitchen countertops however nussbaum generally recommends sticking with white marble. Use the funnel to fill one container with water the second with oil and the third with honey. The larger marble always goes further in distance than the smaller marble.

For the explanation i am actually going to simplify the probl. Because acid etching leaves a whitish mark it is much more noticeable on colored marble than on.