A body is falling from a height $h$. After it has fallen a height $\frac{h}{2}$, it will possess

Both stretched spring and compressed spring have _____ energy.

(Choose from: kinetic/ electric/ elastic potential)

Electricity consumed by us in homes, offices, schools etc., is measured in _____.

(Choose from: joules/ kilowatt hour/ watt hour/ kilowatt)

One joule= _____ erg.

(Choose one of the following: Ten to the power of six /Ten to the power of seven/ Ten to the power of eight)