Question

Define kinetic energy, by giving at least four examples?

Answer 1

Step 1: Definition of kinetic energy:

1. Kinetic energy is defined as the energy that is possessed by an object due to its motion.
2. Formula for calculating kinetic energy, $K.E=\frac{1}{2}\times m\times v^2$

$K.E=KineticEnergy$, $m=massofanobject$, $v=velocityofanobject$

Step 2: Examples: -

1. An aeroplane has huge kinetic energy during its flight because of its faster velocity and huge mass.
2. A baseball after it is thrown, it will have a large amount of kinetic energy because of its high velocity, despite its smaller size and mass.
3. A car travelling down the road has less kinetic energy as compared to that of a semi-truck because of the less mass of the car than the truck.
4. A bicycle or skateboard in motion possesses kinetic energy.