The air... or so I think. x(
A rocket moves forward by expelling high-speed gases out of its engines, in accordance with Newton's third law of motion. As the gases are ejected downward, an equal and opposite reaction force propels the rocket forward. This principle is known as action and reaction.
Newton's Third Law of Motion: For every action there is an equal and opposite reaction. Understand that it is not the exhaust that makes a rocket or reaction motor work, but the force that is applied where no resistance exists. A rocket can be compared to a balloon. The inflated balloon has pressure in all directions, and so does not move. Opening the neck means that there is no pressure at the neck end, and the pressure at the opposite side of the balloon makes it move forward.
Balloon boats move due to the escaping air from the balloon propelling the boat forward. When the air is released from the inflated balloon, it creates a force in the opposite direction, causing the boat to move in the direction of the escaping air.
The upthrust exerted by surrounding air on the balloon.
When a balloon is rubbed against a material (such as wool or hair), it acquires an electrostatic charge. This charge creates a force between the balloon and the ceiling, causing the balloon to stick. This force is due to static electricity.
A rocket moves forward by expelling high-speed gases out of its engines, in accordance with Newton's third law of motion. As the gases are ejected downward, an equal and opposite reaction force propels the rocket forward. This principle is known as action and reaction.
Newton's Third Law of Motion: For every action there is an equal and opposite reaction. Understand that it is not the exhaust that makes a rocket or reaction motor work, but the force that is applied where no resistance exists. A rocket can be compared to a balloon. The inflated balloon has pressure in all directions, and so does not move. Opening the neck means that there is no pressure at the neck end, and the pressure at the opposite side of the balloon makes it move forward.
Balloon boats move due to the escaping air from the balloon propelling the boat forward. When the air is released from the inflated balloon, it creates a force in the opposite direction, causing the boat to move in the direction of the escaping air.
The upthrust exerted by surrounding air on the balloon.
It is not the action but the reaction force that makes a rocket lift up. The action force is the force released when the rocket fuel burns. This action force acts on the surface/ground and according to Newton's Third Law [For each and every action, there is an equal and opposite reaction], a reaction force acts towards the rocket hence giving it a lift.
When a balloon is rubbed against a material (such as wool or hair), it acquires an electrostatic charge. This charge creates a force between the balloon and the ceiling, causing the balloon to stick. This force is due to static electricity.
A rocket moves forward by expelling high-speed exhaust gases out of its engines, following Newton's third law of motion which states that for every action there is an equal and opposite reaction. As the gases are forced out of the rocket at a high velocity, the rocket experiences a thrust in the opposite direction, propelling it forward.
The air inside the balloon is at a higher pressure than atmospheric pressure so the gas molecules inside the balloon are closer together on average than gas molecules outside the balloon. This means that the repulsive forces between the gas molecules inside the balloon are greater than the repulsive forces between the gas molecules outside it. When the balloon is opened, the gas molecules in the open end at the border between the higher pressure interior and lower pressure exterior will experience a greater repulsive force from the gas molecules inside the balloon than the molecules on the outside. This means that they experience a net force pushing them out of the balloon. As these gas molecules are pushed out by the gas inside the balloon, they push back on it with an equal and opposite force (due to Newton's 3rd Law of Motion). This equal and opposite reaction force causes the gas in the balloon to be pushed in the opposite direction to the escaping gas, which in turn pushes the balloon. As more and more gas escapes, the reaction force on the balloon continues to accelerate it, making it shoot off, until enough gas has escaped for the pressure inside the balloon to have dropped to the same level as the pressure outside the balloon.
The seat belt makes an balance forward force because when the car stops you fall forward and the seat belt makes it so the force in your body stays balanced. So it becomes an balanced forward force.
The way rockets work is by modifying the velocity and body-gyro of the rocket brick. In simplified terms, after thee rocket is "created" the script detects and saves the direction the rocket is pointing.The script uses the body gyro to lock the rocket brick in the said direction and suspend the rocket in the air; then it modifies the velocity to propel the rocket forward.
Thrust, and lots of it. for about $25 bucks @ you're locale hobby store, you can buy a model rocket kit that uses the same basic idea's as nasa's
kinetic energy makes it go forward