How Rocket uses Newton's 3rd Law to escape earth Gravity
DIY space science experiment
Who is not excited to launch a rocket? Build a water rocket with the kids and make an incredible moment to launch it. With an empty plastic bottle and at-home materials, make a blast while learning some rocketry.
This DIY project helps to build a Water Rocket. This rocket uses water as its reaction mass. This rocket is propelled by releasing the pressurized water from the bottle. This rocket propulsion is explained using Newton’s third law of motion.
Procedure
Discussion
The principle behind this experiment is Newton’s Third Law. It states that “For every action, there is an equal and opposite reaction”. The bottle, half-filled with water and an air pump to increase the pressure inside the bottle. Water is released when it can no longer withstand the pressure. The escaping water is pushed down by the air; as an opposite reaction, the rocket is pushed up into the sky.
Difficulty Level: Difficult
Average Time: 20-30 minutes
MATERIALS
- Plastic bottle
- Cork
- Clay
- Water
- Needle-valve
- Air pump
- Cardboard
- Scissor
- Pencil
- Tape
- Ruler
