Paper Plane Sciance

4 forces.
Thrust
Lift
Drag
Gravity

Making a paper plane

Q. What are the forces acting on a paper plane?

There are 4 forces acting on a paper plane.



Thrust pushes the plane forward
Lift pushes the plane up.
Gravity (or Weight) pulls the plane down.
Drag pushes the plane backwards.

Challenge:  To find a paper plane that beats the rest of the class.

Aim: I want to find a paper plane design that can fly the furthest and beat the rest of my class.

World Record for Longest Flight

Step 1:

Step 2:

Step 3:

Step 4:

How can you change the forces from above to make the airplane go further?

• Need to increase the thrust - to do this, i will throw harder.
• Reduced drag 
• Change air flow - add ailerons

1. Write up the experiment using the Scientific method
2. Record your findings on the chart
3. Take a photo of all your planes and upload them onto your blog
4. Graph the results in a bar graph.

Plane	Distance
Glider
Jet	6.9m
Cruiser
Round wing

Welcome to 2017

Welcome to 2017 This is a palce that I will be able to share my learning. so if you find any thing just leave a comment and let me know what I can work on Thank You.

Bouncing Balls

Bouncing Balls

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

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:

Height of drop	Height of Bounce carpet	Height of Bounce Tiles
80 cm	31 cm	35 cm
90 cm	31 cm	44 cm
100 cm	39 cm	47 cm

Findings: At 80 cm the ball on the carpet bounced 31 cm and on the tiles the ball bounced 35 cm.

 At 90 cm the ball on the carpet bounced 31 cm and on the tiles the ball bounced 44 cm.

 At 100 cm the ball on the carpet bounced 39 cm and on the tiles the ball bounced 47 cm.

Discussion:

Conclusion:The ball that bounced the highest was the meter on the tiles because of the reaction of the ball hitting the ground with momentum and because the tiles are harder than carpet.

Evaluation

Fastest vehicles.

SAlt flat racers.

Fastest cars in the world

Fastest animals

Planes

Sonic.

Gravity helicopter experiment

Gravity - Helicopter experiment

March 30, 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	1:48 s
Cardboard	1:40 s
Short wings	1:85 s
short body	2:00 s

Top to bottom. Short body, Short wings, Cardboard, Paper clip.

Findings: Cardboard falls the fastest and the short wings fall the slowest.

Summary: Short body was the best / slowest paper chopper to fall.

forces

Today we are lurning about forces, these are some we know.

UP/DOWN

Gravity

Pull & Push

Stretching arm

Throw or kick

Tip bin.

defenition of forces

PS#6 i think i have achieved this goal because i can now take responsibility for my own actions a lot better now then i could before.
AL#5 I think i am still working on this goal because i still find it hard to share my ideas, and my point of view with other people.

 I am working on these two because I find it hard to share my learning with others and when I work with others I start conversations. 

T3 Goals:
AL#5 I am going to try harder on shearing my ideas with people I don't usually talk to in class.
TS#1 I am going to remember what we were doing and being able to reflect on what the task is.