EVERYDAY SCIENCE

SCIENCE

PHYSICAL SCIENCES

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
An example of an energy conversion from kinetic to thermal energy would be
A
friction
B
television
C
flower
D
gravity
Explanation: 

Detailed explanation-1: -The motion of particles present in your hands when you rub them against one another creates friction that increases the activity of atoms and its kinetic energy that gradually produces thermal energy that you feel as warmth.

Detailed explanation-2: -When two surfaces rub together, some of that kinetic energy of stirring will get transformed into thermal energy. The conversion of kinetic energy to thermal energy happens when an entity’s temperature expands, and its atom’s median kinetic energy enlarges.

Detailed explanation-3: -Friction braking is the most commonly used braking method in modern vehicles. It involves the conversion of kinetic energy to thermal energy by applying friction to the moving parts of a system. The friction force resists motion and in turn generates heat, eventually bringing the velocity to zero.

Detailed explanation-4: -Thermal energy from friction All the work done by the friction force results in a transfer of energy into thermal energy of the box-floor system. This thermal energy flows as heat within the box and floor, ultimately raising the temperature of both of these objects.

Detailed explanation-5: -Thermal energy is due to the two surfaces (i.e Walter’s fur and the ice) rubbing against each other, which is basically friction. So the work done by friction is W-Fk*d (Fk is the force of friction) and it is equal to the thermal energy.

There is 1 question to complete.