Speed of Sound and Light

1. Which color had the lowest frequency?

Violet 

2. What is the relationship of the red wavelength to the green wavelength?

 Red has a higher frequency than green

3. What is the relationship of the red wavelength to the violet wavelength?

 The ends of the rainbow, red has a lower wavelength than violet 

4. What is the relationship of the red frequency to the green frequency?

 Red has a lower frequency than green 

5. What is the relationship of the red frequency to the violet frequency?

 red has a lower frequency than violet 

6. If waves are moving at the same speed, what is the relationship between wavelength and frequency?

 They are all part of the viable spectrum and part of the light coming from the sun 

7. Based on the above relationship, if you were to look at a blue wave, would it have a higher or lower frequency than the green wave?

 higher 

8. Based on the above relationship, if you were to look at an orange wave, would it have a longer or shorter wavelength than the green wave?

 longer 

9. If Velocity = Distance / Time, what was the velocity of the waves in this lab?

 velocity 

Rube Goldberg Reflection

Throughout the process of building our Rube Goldberd machine Brandon and I worked together and learned many things from it. The first drawing we did was not that good. As we went along creating the project we thought of ideas and we incorporated those ideas into our project. The first drawing did not accurately represent out machine it was messy and it didn't show all our steps. we had five out of six simple machines including ramps, lever, wedge, pulley, and wheel and axle.

When doing this project Brandon and I incorporated everything we could think of. when we were done with our project we calculated all of the mechanical advantages and wrote it on our final drawing. we went from kinetic and gravitational energy in our project. we thought of more steps as we went along and at the end of the whole process we could of had more steps but we had to end it. Also we followed all of the rules and we didn't need human assistance at any point except the beginning.

We had ten steps including the popping of the balloon. Also all of the six simple machines were labeled on the final drawing. At the end of the project we ended up popping the balloon. At this stage we are done with our project. Brandon and I are done with our project because we we persistent with our work and we worked well together.  

 

Rube Goldberg and Simple Machines

Rube Goldberg was a Pulitzer prize winning cartoonist, sculptor and author. He was born in San Francisco July 4 , 1883. He graduated from the University of California Berkley and got a degree in Engineering. He constructed his inventions by using a complex set of arms, wheels, gears, handles, cups, and rods.

Journal Entry: Energy Transfer and simple machine Learning

Lever:

• A straight or curved bar that is able to move around a fulcrum 

Pulley:

Is a simple Machine that uses grooved wheels and rope to raise or lower the object based on the needs of the individual 

Wedge:

is an object with at least one slanting side ending in a sharp edge, which cuts materials apart. 

Wheel and Axle:

Is used to move heavy loads from place to place 

Inclined Plane: 

An incline plane is a slanted surface that connects a lower level to a higher level. 

Screw:

a screw is a inclined plane wrapped around a pole which holds things together or lifts materials. i have mostly seen it putting things together. 

Newton's Laws Assessment

1. What are the relationships between forces and motion? 
2. What are the variables that affect motion and force? 
3. How does Newton’s three laws describe the motion of a moving 
object? 
4. How does gravity impact objects?

1) the relationship between forces and motion is simple. with out a force acting on the object the object would not be able to change its speed and direction. The best way to explain the relationship is Issac newtons 3rd law. Newtons 3rd law states for every reaction there is an equal and opposite reaction. For example, when a rocket ship takes off all the force is being hurled down towards the ground causing the rocket ship to be thrown into space. 

2) There are a lot of variables that affect motion. Such as, Gravity- the gravity is pulling everything down towards the earth. And friction- when driving a car there is friction between the air and the ground acting on the car. Both Gravity and Friction play a role in affecting an objects motion. 

3) Newtons three laws describe the motion of a moving object in many ways. when a soccer ball is kicked by a player the force of the kick sends the ball in the direction of the kick (newtons first law). when an object is at rest will stay at rest until acted upon by an unbalanced force. newtons second law applied to destroying a wall. when people destroy walls they either use explosives or a wrecking ball because the walls mass is huge and the bigger the mass the greater the force you will need to break it. the third law can be showed by a rocket the thrust of the rocket ship towards the ground will move the rocket in the other directions towards space. 

4) gravity greatly impacts objects. One thing gravity affects is our weight. for example, on the moon you would weigh less because the moon has less of a gravitational pull. but on the earth there is a greater pull because of the earths iron core causing you to weigh more on earth. the moons gravitational pull causes us to have waves on earth. 

Newtons Laws and Mechanical motions

I learned a lot about Newtons laws.
I learned that Newtons first law of motion says "An object in motion stays in  motion unless acted upon another object

I also learned that the second law of motion says "an object will accelerate in the direction of the net force, like what we did in class this week

The next thing i learned is about newtons 3rd law that says for every action, there is an equal and opposite reaction.

All of these Laws are used in the daily lives of every single person in the world.



Proving Newton's Second Law

Question: How does mass and acceleration relate to force

 



Materials used:

• wood track
• spring scale
• weights
• car

Hypothesis: The larger the mass on the car the more force it takes to move it

Steps:
1) Get supplies, stop watch, weights, spring scale, car, and wood track
2) Go over to the station you will be preforming experiment in
3) Put the wood track flat then put a weight in the car, then pull the car with a spring scale to record its force
4)Preform experiment when track and everything is set up
5) After that raise the wood track, angling track at desired angle
6)Record data throughout experiment
7)get graph paper
8) on the X-axis put force (N) on Y-axis put acceleration
9) Plot data, use a line graph
10) Get another piece of graph paper
11) On X- axis put acceleration (m/s2) on the Y-axis put mass (G)
12)Using a line graph plot the data

Museam Of Science Field trip

Audiokinetic Sculpture:

The AudioKinetic Sculpture was very interesting. When I was watching this huge sculpture I was amazed because it must of taken a lot of planning and trial and error to make. I noticed that when watching this one action moved to another, it was very interesting. Although it was cool to watch it was hard to look at because it was so tall. it was a little hard to see because it hurt your neck trying to look up and follow the ball.

Fantastic Forces:

The Fantastic Forces was cool. This presentation was a little awkward because the lady was trying to be funny, but she wasn't. Also she was seeming to kind of being over the top with her attitude or emotions. But, the presentation was cool, it was interesting to see how the balls transmitted force to each other. Also it was cool to see how she didn't get hit in the face with the ball, also it was cool when she pulled the table cloth out from under the water.

Engineering Design: Bobsled

This was really fun to do. I thought it was fun to try and beat the record for the day and try to improve how your Bobsled works. Also it was fun to go against other people to try and beat them and make your Bobsled the Best. Also it was cool watching how something's worked and some did not and how other people were thinking.

 

Lightning Show:

The lightning show was the coolest thing we did all day. It was cool when the guy made the lightning make a song, I did not know that lightning could make sound. also it was cool how that little girls hair stood up because of static electricity. When the guy was in that cage I cant believe he did not get electrocuted.