MCQ
What is potential energy?
- AEnergy of an object due to its position or arrangement in a system
- BEnergy of an object due to its nature or arrangement in a system
- CEnergy of an object due to its shape or arrangement in a system
- DNone
Explanation:
The potential energy is the stored energy of an object due to its position.
some examples of potential energies are gravitational potential energy, Electrostatic potential energy and elastic energy etc.
A body placed at ground will have less gravitational potential energy than a body placed at some height. therefore, potential energy changes by changing the position of object.
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According to one of the Kepler's laws of planetary motion:
$\text{r}^2\propto\text{T}^3$
$\text{r}\propto\text{T}^2$
$\text{r}^3\propto\text{T}^2$
$\text{r}^3\propto\frac{1}{\text{T}^2}$
Choanocytes are unique to: