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.