Physics for IGCSE & O level - Forces And Motion (Section 8 - No. 19)
What is the effect of doubling the velocity of an object on its kinetic energy?
It doubles.
It quadruples.
It halves.
It remains the same.
Vysvětlení
Kinetic energy is proportional to the square of the velocity. Doubling the velocity quadruples the kinetic energy.