Answer 5 rocket questions for me ok? Thanks?

Question

1. How is a rocket similar to a balloon?
2. Explain Newton's first law. Why are you never sitting still?
3. How is Newton's first law related to rocket flight?
4. Explain how Newton's third law (action-reaction) causes a rocket to lift off.
5. Why do rockets actually work better in outer space than in our atmosphere (remember, there is no matter and thus no air in space)?

Answer 1

1. A rocket is similar to a baloon in the sense that a balloon, when you let it go, air is forced through the neck of the balloon which causes it to fly.

2 Newton's First law of motion states that "an object at rest will stay at rest unless acted upon by an outside force. an object in motion will continue in motion unless acted upon by an outside force". if you roll a ball along the floor of your house, it will eventually stop due to the friction that acts upon it.

3. if you fire a rockets engines, and then suddenly stop them, gravity will take over and the rocket will fall back to earth once the gravity strength becomes greater than the upward force acting on the rocket from the engines,

4. this one is really simple. consider the Space shuttle, the space shuttle has Solid Rocket Boosters that allow, once they are ignited to lift off the pad, the boosters propel the fuel one way, the Space Shuttle goes the other way. "Every Action has an equal and/or opposite reaction".

5. Rockets work better in space than on the ground because of friction. in space there is no air, so there is no air resistance or friction to work against the rockets.

Answer 2

1. Both fly. A rocket's thrust comes through use of Newton's 3rd law. If you fill a balloon with air, and then let go of it, as the air rushes out, the balloon will similarly experience thrust according to Newton's 3rd Law.

3. To get to Mars, you only need to start yourself on the way, and then you'll keep going toward it at a constant speed. No need to keep running your engines.

5. Friction from the air acts as a force that works to reduce the rocket's velocity. In space, there's no air, and thus no force acting against the rocket's motion.

Answer 3

http://en.wikipedia.org/wiki/Newton%27s_law