Monday, 26 June 2017

Science

Science - rocket balloon 
 Week 8

What is force?

Force is a push and pull motion, 
Pull: is when you pull something towards you like rope when you're playing tug of war

Push: is when you push something like a trolley when you go shopping. 
Gravity: gravity is a pull force, gravity pulls everything towards the ground so we don't fly around. 
Isaac newton's three laws of motion

Inertia: an object that stays the same forever until something moves it.

Acceleration: an object that moves fast. the lighter the object the more acceleration.

Every action has a reaction




See:

Balloons: 
The materials I used were:
A balloon 
Tape
String
Straw

The steps I used to make it was
Measure our things
Thread the string through the straw
Stick the string on to how much of an angle we wanted 
Blow up the balloon
Tape the balloon onto the straw
Let go of the balloon.




Think:

I changed my rocket balloon by trying to make it faster by adding on an extra balloon, but that didn't work. The data I gathered was the balloon size, straw length, string length and the string angle. I learnt that one balloon makes it go faster than two balloons.




Wonder:

I can use my new learning about force in the future by taking a test about it. A wondering I have now is if I can change my string angle to 90 degrees.

My activity uses force by the air pushing the balloon to the end of the string. 



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