No, a ball sitting at the top of a hill has potential energy, but once that ball starts to roll down the hill it's potential energy is converted to kinetic energy, the energy of motion.
I disagree 100% with this edit. If a ball is rolling down hill and is say half way down it still has potential energy ready to be converted to kinetic energy
So the answer is YES
Heat is released during an exothermic reaction.
Wheels, ball bearings, the Egyptians building the pyramids using tree trunks to move the stones. An example of rolling friction would be like a skateboard rolling on a sidewalk. car running up a hill. someone pushing a wheel barol A bowling ball
Condensation is generally exothermic in that the material doing the condensing will be giving up thermal energy to do so. And giving up heat energy is the exit of thermal energy, hence the name exothermic. The atoms or molecules of this consate give up some of their kinetic energy, their energy of atomic or molecular motion, that thermal energy, to condense.
When concrete cures it warms up. Those hand warmers that heat up when they are opened up are exothermic. Desiccants when exposed to a lot off water.
The combustion of magnesium is an exothermic reaction because it releases heat energy. The bright white light and high temperatures produced in the reaction are characteristics of exothermic reactions.
Not necessarily. If it's rolling in a straight line on a smooth and level floor, then the acceleration is as good as zero. But if the ball is rolling up a hill, or down a hill, or around the groove in a roulette wheel, or through grass and slowing down, then there's substantial acceleration.
Friction between the ball and the surface it is rolling on will eventually stop the ball from rolling after it comes down a hill. As the ball rolls, this friction converts the kinetic energy of the ball into heat, gradually slowing it down until it stops.
By rolling up their body into a ball
Wrong category! It is acted upon by gravity - just the same as a ball rolling down a slope.
Rolling up might mean to arrive. The image is of an automobile rolling up to the door. It also might mean rolling a cigarette (or anything that you smoke rolled up in a paper). A third meaning would be literally rolling something into a ball or tube, as in rolling up a newspaper into a tube.
By gathering them up like snow balls and rolling them down the hill. :)
A snowball. When rolling downhill, a snowball accumulates more snow and gathers momentum, making it faster than when it's rolling uphill.
If a ball is rolling up a ramp, it would be moving due to a combination of its initial velocity, gravity pulling it downward, and the normal force exerted by the ramp surface that helps propel it upward. The ball's kinetic energy is converted to potential energy as it gains height while rolling up the ramp.
Since a ball is a sphere the motion it makes is rolling. The rolling happens on the ground and in the air.
they protect themselves by rolling into their 5 sided column rolling ball and they spit up a type of poisoning called pussitoligus
Friction The ball deforms and un-deforms as it rolls, using up energy.
The dumbwaiter is for rolling a hot cannon ball up to Count Braum's "Office" to heat up the Mandrake roots.