Aim: 

To see whose sail is the fastest.

 

Equipment:

• Cardboard
• Plastic
• Bamboo stick
• Tape
• Colored Paper
• Wooden car

 

Method:

1. Get a bamboo stick and put it in the middle verticle of the square plastic.
2. Then get some popsicle sticks put them horizontally in the ends of the bamboo and tape them together.
3. Wrap the plastic around the popsicle stick and tape them together.
4.  Measure and cut out the sides and roof of the car. The sides are 8cm in height and the length is 30cm and the roof is 28 cm.
5.  Then make the spoiler. The length is 16cm and the height is 5 cm. Watch a YouTube tutorial on how to create one. Here is what I watched – https://www.youtube.com/watch?v=bU9DehS6xHQ
6. Make these P-shaped pieces so you can connect the spoiler to the car.
7. Add little shaped wings to each side so it can cut air resistance.
8. Just put all the pieces together.

 

Results:

Plan –

Distance – 7.2m

Time – 13.0s

Formula – V= d/t

To find the Velocity you do Distance divided by time.

7.2m ÷ 13.0s = 0.55384615384ms-1  Rounded – (0.55ms-1)

 

Discussion:

We made a sailboat which was called a wind racer, and made it look like a car so the design would look good.

What are the forces acting on your wind racer – As we did the experiment there were 4 forces opposing the experiment. Thrust, Lift, drag, and weight. Thrust is a force that pushes the object forward, and drag is a force that acts as the opposite force for thrust as it moves forward dragging it down. Lift is the sum of all the forces that force it to move perpendicular to the direction of flow. Weight is a force that gravity has on an object.

Are they balanced or unbalanced – The wind racer was an unbalanced force as there were no forces opposing each other with equal force. When equal force is applied, it will not change the movement of the object. Making the object stationed at its place with no motion.

What is a net force and how does it relate to our wind racer –  Net force is the total force acting on an object. Considering both the strength and direction of all forces acting on it. This relates to our wind racer because the wind racer has all 4 forces acting on it as it moves.

What are the strengths of forces acting on it at different stages? – As the wind racer is stationed it has zero net force as all the 4 forces are balanced. But when you turn on the leaf blower it creates a force that makes the wind racer accelerate forward, which is thrust. As a result, it creates another force which is drag, it is the opposite of thrust which means instead of accelerating forward it will slow us down. While weight and lift are balanced.

How do the forces acting on the wind racer affect the motion of the wind racer at different points? – As there is more force acting upon the wind racer it will accelerate faster meaning more thrust. But at one point it starts to slow down which means there is less thrust, which means drag can accrue more easily and slow down your wind racer. As Newton’s first law, it is that an object will stay stationed until an external force is used.

Why do you think results may vary in the class? – Because we all could have applied more or less force to the wind racer, resulting in a different time. But also each wind racer had different shapes and stuff which would neither make the wind racer go faster or slower.

 

Conclusion

How was your wind racer successful/unsuccessful and why? – Our wind racer was pretty successful as it went a good distance. We tried and reduce as much drag as we could so we made sure the shape was right.

How could you improve it? – We could have planned it better because there were some errors in the process. We could have done better time management and created less drag.

 

Aim:

To find out if we can make an egg parachute that can safely land without the egg breaking.

 

Research:

 

Method:

1. 1. We cut out cardboard and made it into 5 squares with flaps.
   2. Then glue it together with hot glue where we made the flaps.
   3. We then cut out 4 trapezoids for the roof to see the egg.
   4. Then we designed it into a house.
   5. Add patting to the inside so the egg is safe inside.
   6. Then glue a small yogurt container in the middle where the egg can stay safe.
   7. Then we got a plastic bag and cut all the areas we didn’t need.
   8. We got 4 strings and threaded it through on each side.
   9. Then we glue each of the strings on each side of the house.
   10. We tested it and it worked.

 

Results:

We had very good test results despite being in a rush to do things. Our parachute accomplished two things, how it looked and the speed it took to reach the ground. Out time was – 2.06 seconds. Ours was the slowest compared to the other parachutes.

 

Discussion:

The reason why some of the parachutes fall faster than others is because they neither have a smaller parachute nor a bigger mass. The bigger the parachute the better as there is more friction as it falls to the ground, which creates more drag. Another thing why some of them fell faster is because it has more mass, the bigger the mass the more speed it acceleration.

Conclusion: 

What I would like to improve next time is teamwork but for the project itself the design, and the length of the parachute because it was kinda uneven.

Aim: 

To find out what our zombie will look like and learn about genetics.

 

Method:

We chose what parent alleles we were going to do, making it a capital or a lowercase. To decide what traits your zombie had we had to choose two answers on the topic it is on. And the more dominant one will get more chosen.

 

Results:

This is what I got. Don’t mind the hands.

 

Gene – A gene is a heredity that is carried from a parent to an offspring, which is held to determine some of the characteristics of the offspring.

Allele – An allele is one or two more versions of the DNA sequence at a given genomic location.

Genotype – It is the genetic makeup of an organism.

Phenotype – The observable physical properties of an organism.

 

This is basically how you fill out punnett squares –

You grab each letter from each of the two and put it into a square, Im sure you can see a pattern.

I did this and it is great, but I do not know if it is correct or not.