Name the three forms of kinetic energy and give one example of each.
Name the three forms of kinetic energy and give one example of each.
FORMS OF KINETIC ENERGY
The energy that an object has due to its motion is called kinetic energy. Kinetic energy comes in many different forms. However, three of them are most common.
- Translational kinetic energy
- Rotational kinetic energy
- Vibrational kinetic energy
TRANSLATIONAL KINETIC ENERGY
In mathematics and physics, the word translates means “move from one place to another place”. Translational kinetic energy is the kinetic energy an object has due to its motion in a straight line from one from one place to another place. Train moving on a track, any object freely falling due to gravity, driving a car on the road, motion of bullet fired from a gun and expanding of galaxies are some examples of translational kinetic energy.
The translational kinetic energy can be mathematically written as
K.E. = (1/2) mv.v KE = kinetic energy of an object
m = mass of an of an object
v = velocity of an object
ROTATIONAL KINETIC ENERGY Rotational kinetic energy is the kinetic energy an object has due to its rotational motion around an axis. It is also called as angular kinetic energy.
The rotating object has kinetic energy associated with rotation, even if its center of mass is at rest. For example, suppose you spin a bicycle wheel on its axis and hold the axle stationary. The spinning wheel of a bicycle has kinetic energy because the atoms are moving in a rotational motion relative to the center of mass.
The blades of the rotating fan have rotational kinetic energy due to its rotational motion.The rotational kinetic energy can be mathematically written as
K.E. = (1/2) I . ω .ω Where KE = kinetic energy of an object
I = moment of inertia around the axis of rotation
ω = angular velocity
Moment of inertia is the measure of body's resistance to the angular momentum.
VIBRATIONAL KINETIC ENERGY Vibrational kinetic energy is the kinetic energy an object has due to its vibrational motion.Cell phone that vibrates when it is ringing and vibration of a drum when it is hit by a hammer are some examples of vibrational kinetic energy.
FORMS OF KINETIC ENERGY
The energy that an object has due to its motion is called kinetic energy. Kinetic energy comes in many different forms. However, three of them are most common.
- Translational kinetic energy
- Rotational kinetic energy
- Vibrational kinetic energy
TRANSLATIONAL KINETIC ENERGY
In mathematics and physics, the word translates means “move from one place to another place”. Translational kinetic energy is the kinetic energy an object has due to its motion in a straight line from one from one place to another place.
Train moving on a track, any object freely falling due to gravity, driving a car on the road, motion of bullet fired from a gun and expanding of galaxies are some examples of translational kinetic energy.
The translational kinetic energy can be mathematically written as
m = mass of an of an object
v = velocity of an object
ROTATIONAL KINETIC ENERGY
Rotational kinetic energy is the kinetic energy an object has due to its rotational motion around an axis. It is also called as angular kinetic energy.
The rotating object has kinetic energy associated with rotation, even if its center of mass is at rest. For example, suppose you spin a bicycle wheel on its axis and hold the axle stationary. The spinning wheel of a bicycle has kinetic energy because the atoms are moving in a rotational motion relative to the center of mass.
The blades of the rotating fan have rotational kinetic energy due to its rotational motion.The rotational kinetic energy can be mathematically written as
I = moment of inertia around the axis of rotation
ω = angular velocity
Moment of inertia is the measure of body's resistance to the angular momentum.
VIBRATIONAL KINETIC ENERGY
Vibrational kinetic energy is the kinetic energy an object has due to its vibrational motion.Cell phone that vibrates when it is ringing and vibration of a drum when it is hit by a hammer are some examples of vibrational kinetic energy.
