Gravity - Helicopter experiment

The Helicopter Expriment

March 28, 2017

 Gravity

https://www.youtube.com/watch?v=mn34mnnDnKU

Newton has 3 Laws of Motion.

1. An object at rest will remain at rest unless acted on by an unbalanced force. An object in motion continues in motion with the same speed and in the same direction unless acted upon by an unbalanced force.

2.Acceleration is produced when a force acts on a mass. The greater the mass (of the object being accelerated) the greater the amount of force needed (to accelerate the object).

3. For every action there is an equal and opposite re-action.

Aim: To make a helicopter and look at the force of gravity.

Hypothesis: The size of the wings will effect the speed that the helicopter travels.

Equipment:

1. Stopwatch - use the Google stopwatch on your chromebook
2. Helicopter template / paper
3. Drawing pin

Method:

1. Make the helicopter by cutting out the template.
2. Drop the helicopter from a height. Use the same person.
3. Time each drop and record the time when it hits the floor.
4. Each time it is dropped you will make a change to its form.

• With a paperclip on the bottom.
• Use heavier material ( Cardboard)
• Cut the body in half to give it a short body.
• Cut the wings to give it short wings

1. Time each time you drop it.
2. Record the findings on a chart

Type	Time
Paperclip	1.58
Cardboard	1.84
Short wings	1.21
short body	1.70

Findings: What do the findings from your four flights say? Write about them.

Paperclip was not working, Cardboard was the longest, The short wings was the slowest, and Short was a bit cranky at flying.

Summary: What was the best result? ( The longest time will be the 

The longest was the Cardboard

Monday, 27 March 2017

Forces

Forces
1. A title
2. A defintion
3. 6+ pictures of forces around the home

Rip    Kick






Throwing    
                                                                       Rocking






 Lifting


 Rotate









The definition of Forces
 A force can cause an object to accelerate, slow down, remain in place, or change shape.

Bouncing ball

Aim:
I want to find out if there is a relationship between how high a ball is dropped from and how high it bounces up.

Hypothesis:
I predict that the higher the ball is dropped from, the higher it bounces.

Method:
The equipment that I will need is:

• Bouncy ball
• Ruler
• Stand with boss head and clamp

Height of drop	Height of bounce on carpet	Height of bounce on concrete
80cm	10cm	39cm
90cm	21cm	36cm
100cm	31cm	43cm

Findings:

The ball bounces higher in concrete than in the carpet.

1. Attach the clamp to the stand.
2. Clamp the ruler onto the stand so that the zero mark is on the ground.
3. Hold the bottom of the ball on 50cm and drop.
4. Record the height of the bounce measuring the bottom of the ball.
5. Repeat the experiment twice more and record the average measurement.
6. Repeat the whole experiment using heights of 60cm, 70cm, 80cm, 90cm, 100cm

                                      
Variables:

Independent (changing) Variable = The height of the drop
Dependent (measured) Variable = The height of the bounce

Results:

Conclusion: It bounces higher from 90cm to bounce to 36cm in the concrete.
It bounces lower from 90cm to bounce to 21cm in the carpet.



Top ten fastest in the word

Helios Probe

Fastest in Space – Unmanned

 

NASA X-43

Rocket Sled

ThrustSSC

Spirit of Australia

SR-71 Black Bird

Galileo Probe

Koenigsegg Agera R

Science in A9

Putting test tube in there to hold it and the name Test tube holder.

This is a Conical Flask. You use it for holding liquid.

This is Funnel. This is use for putting liquid into container. 

This is Beaker. This is use for holding liquid.

This is Tripod. This is use for Bunsen burner.

This is Test tube. This is use for holding liquid.

Elf Myself

On Friday we did elf myself, what we had to do is we need to colour it, cut it and take a picture of your self. Once we finished that we need to stick our picture in the elf and stick the other parts of the body. I enjoyed colouring it.

DLO

This week we are working on DLO that means digital learning object, what are we doing is we had to do what is 2016 meant to you and we had to do it in DLO. I learnt what is DLO means and how to make thinglink, I enjoyed making it.

Dum building

At camp we have an activity, one of the activity is dum building. At the first time we need to find rocks and sticks, and this is my first time building a dum!!! after we finished placing rocks then, we put sticks, but the fun part is going to the deep part of the river. When I went to the deep river it's very cold and high as a table.  I learnt how to build dums, I enjoyed going to the deep part of the river.

Television or Books. A DEBATE!!!!!!!

in letracy we are doing reading, what are we doing in reading is read and persuade us whats better television and books. A debate is is an argument.

Television or Books

A Debate

Question	Answer
1. What are the three purposes of television and books?	Because there are both amuse, entertain, educate, inform, and they keep you occupied.
2. What is the meaning of remote?	In consumer electronics, a remote control is a component of an electronic device such as a television set, DVD player, or other home appliance, used to operate the device wirelessly from a short distance.
3. Why is a debate a good way of discussing this issue?	Because to use all people opinion.
4. What is the first argument that is put forward in this discussion?	The first argument was variety.
5. Does the author think that television or books are better?	I think the author thinks that television is better than books because in the case of television is more reason than the book.
6. Why is most of the text on pages 2-3 in speech bubbles?	Because the speech are in page 2-3 and the reasons and the event are in there.
7. Why do you think people spend more time watching television than reading books?	Because they can watch whatever they want and they love to watch television