We feel proud when our country launches a missile. Traveling thousands of km away from the earth, these rockets work on Newton’s law of motion. The working of rockets is similar to that of balloons. As the gases come from the engine, the rockets are pushed forward. You won’t believe but the technology on which rockets work is an older one. The first rocket containing liquid fuel was sent in the space in the year 1926.
Rockets require a higher amount of fuel to operate. The hot gases come out in force from the back side of the rocket which further pushes the rocket forward to fly higher in the air. They can speed up after getting a speed of 28,000 km/h. More than billions of combustion elements exert force by which rocket flies higher and higher. When the fuel is used by the rockets completely, they fall towards the earth in some ocean or isolated areas away from human population.
So now, if you get a question on how rockets work, you can explain it by giving the example of the balloon.