Mu-Friction
Why I think friction happens is because so that someone or something can stop, without friction the object will probably go on forever. Friction acts a a resisting force to relative motion between two surfaces that are in contact with one another. Another surface that would have a bigger impact on Mu is a concrete surface because its really rough. The concrete will create a lot of friction and will take lots more force to pull the object on a concrete surface
Monday, December 8, 2014
Wednesday, December 3, 2014
Another Planet
"Another Planet"
My planet will be called Jack-net its twice as big as Earth. The gravity in Jack-net will be stronger than the one in Earth. In Jack-net you will be able to push something and the item wont go as far as in Earth. Gravity will be pushing you down a lot harder in Jack-net than in Earth. Earth and Jack-net will be revolving around the sun and will be orbiting around the galaxy. In Jack-net the planet will have about 70 moons and in Earth it has 1 moon. The temperature in Jack-net will be WAY colder than in Earth. (70 degrees in Earth= -700 degrees in Jack-net)
My planet will be called Jack-net its twice as big as Earth. The gravity in Jack-net will be stronger than the one in Earth. In Jack-net you will be able to push something and the item wont go as far as in Earth. Gravity will be pushing you down a lot harder in Jack-net than in Earth. Earth and Jack-net will be revolving around the sun and will be orbiting around the galaxy. In Jack-net the planet will have about 70 moons and in Earth it has 1 moon. The temperature in Jack-net will be WAY colder than in Earth. (70 degrees in Earth= -700 degrees in Jack-net)
Wednesday, November 19, 2014
Mass And Newton's First Law
Mass And Newton's First Law
Three examples in my life that have the same relationship between inertia and Newton's first law is that one of them involves a soccer ball and a tennis ball. The soccer ball has more mass than the tennis ball so the soccer ball will have more inertia and with Newton's first law the object will stay in motion. The more mass an object has the more force you will need to apply to in order to make it move. Another example is a beach ball(5 kg) and a golf ball(10 kg). Even though the beach ball is bigger the amount of mass of the golf ball will have more inertia. Inertia only depends on the amount of mass an object has NOT the size. This will make the golf ball take a little bit more force to make that object move, and on the other hand the beach ball is lighter than the golf ball. Newton's first law states that an object in motion stays in motion while an object at rest stays at rest... This is similar to Inertia because they both require an object to either to remain at rest or remain moving with a constant speed. A last example I have is 2 rocks with one of them being 5 kg and the other rock with 15 kg. They both have the same size, but the rock with 15 kg will obviously have more inertia because that one has more weight. This relates to Newton's First law because the both require the object to saying at rest or the object moving.
Three examples in my life that have the same relationship between inertia and Newton's first law is that one of them involves a soccer ball and a tennis ball. The soccer ball has more mass than the tennis ball so the soccer ball will have more inertia and with Newton's first law the object will stay in motion. The more mass an object has the more force you will need to apply to in order to make it move. Another example is a beach ball(5 kg) and a golf ball(10 kg). Even though the beach ball is bigger the amount of mass of the golf ball will have more inertia. Inertia only depends on the amount of mass an object has NOT the size. This will make the golf ball take a little bit more force to make that object move, and on the other hand the beach ball is lighter than the golf ball. Newton's first law states that an object in motion stays in motion while an object at rest stays at rest... This is similar to Inertia because they both require an object to either to remain at rest or remain moving with a constant speed. A last example I have is 2 rocks with one of them being 5 kg and the other rock with 15 kg. They both have the same size, but the rock with 15 kg will obviously have more inertia because that one has more weight. This relates to Newton's First law because the both require the object to saying at rest or the object moving.
Monday, November 17, 2014
Inertia Investigation
Inertia Investigation
Three things in my life where I saw inertia happening was when I was at the park. At the park I saw a soccer ball just continuing to roll across the street and the object was remaining to move with a constant speed in a straight line. Another thing in my life where I saw inertia was when I dropped a coin. When I dropped the coin the coin remained at rest while other people where moving past by it. The coin stayed at rest because I didn't bother to pick it up. Last thing in my life where I saw inertia happening when I was playing golf. The golf ball kept on rolling and rolling, it never stopped. The golf ball was moving with a constant speed in a straight line when all of the forces are balanced.
Three things in my life where I saw inertia happening was when I was at the park. At the park I saw a soccer ball just continuing to roll across the street and the object was remaining to move with a constant speed in a straight line. Another thing in my life where I saw inertia was when I dropped a coin. When I dropped the coin the coin remained at rest while other people where moving past by it. The coin stayed at rest because I didn't bother to pick it up. Last thing in my life where I saw inertia happening when I was playing golf. The golf ball kept on rolling and rolling, it never stopped. The golf ball was moving with a constant speed in a straight line when all of the forces are balanced.
Saturday, November 15, 2014
Balanced And Unbalanced
Balanced And Unbalanced
Box B and D all have unbalanced forces.
Box A and C have balanced forces.
Box A is going 25 N going in a normal force (North), 25 N going in a gravitational force (South), 20 N going in a Friction force (West) and
20 N going in an applied force (East)
Box B is going 25 N in a normal force (North), 20 N going in an applied force (East), 25 N going in a gravitational force (South), and 15 N going in a Friction Force (West).
Box C is going 25 N in a normal force (North), and going 25 N in a gravitational force (South).
Box D is going 25 N in a normal force (North), 20 N going in an applied force (East), and 25 N going in a gravitational force (South).
In order to make box B balanced you need to add 5 N more to the friction force so it can be balanced.
In order to make box D balanced you need to also add 20 N to the friction force so it can be balanced.
Box B and D all have unbalanced forces.
Box A and C have balanced forces.
Box A is going 25 N going in a normal force (North), 25 N going in a gravitational force (South), 20 N going in a Friction force (West) and
20 N going in an applied force (East)
Box B is going 25 N in a normal force (North), 20 N going in an applied force (East), 25 N going in a gravitational force (South), and 15 N going in a Friction Force (West).
Box C is going 25 N in a normal force (North), and going 25 N in a gravitational force (South).
Box D is going 25 N in a normal force (North), 20 N going in an applied force (East), and 25 N going in a gravitational force (South).
In order to make box B balanced you need to add 5 N more to the friction force so it can be balanced.
In order to make box D balanced you need to also add 20 N to the friction force so it can be balanced.
Wednesday, November 12, 2014
Free Body Diagram
Free Body Diagram
This shows a free body diagram of an object that is moving. It is applying force to the right, and its also causing friction to the left so this means its accelerating to the right. On every single object it always applies gravitational force on downward direction. On this object there is normal force applying upward because a normal force usually pushes the object up and this lets the object not being able to accelerate in a downward direction.
This shows a free body diagram of an object that is moving. It is applying force to the right, and its also causing friction to the left so this means its accelerating to the right. On every single object it always applies gravitational force on downward direction. On this object there is normal force applying upward because a normal force usually pushes the object up and this lets the object not being able to accelerate in a downward direction.
Sunday, November 9, 2014
Scalar And Vector
Scalar And Vector
The difference between scalar and vector is that vector quantity is used for force acceleration velocity and other items that need to show a magnitude and direction. And scalar is a quantity with only magnitude or size.
Examples of scalar:
Volume, Temperature, and location along a line (1 D)
Examples of vector:
Location in a Plane (2 D), Location in Space (3 D), and Increase/Decrease of temperature
The difference between scalar and vector is that vector quantity is used for force acceleration velocity and other items that need to show a magnitude and direction. And scalar is a quantity with only magnitude or size.
Examples of scalar:
Volume, Temperature, and location along a line (1 D)
Examples of vector:
Location in a Plane (2 D), Location in Space (3 D), and Increase/Decrease of temperature
Thursday, November 6, 2014
Four Forces
Four Forces
One of the forces is applied force, which means a push/pull that is usually caused by an object/thing or person. I push my toy car away from me, so I'm applying force to my toy car. Another force is gravitational force which means a force that is attracting two objects it is non contact force. I let go of a tennis ball and it's causing gravitational force, it just falls straight to the ground. One other force is normal force which is a force from a surface and is usually pushing the object up. I push my toy car forward and its causing normal force. Lastly another force is tension force which is a pulling force that is in a string, it can also be a rope or chain. I tied my toy car with a string and I'm pulling the string its causing tension force.
One of the forces is applied force, which means a push/pull that is usually caused by an object/thing or person. I push my toy car away from me, so I'm applying force to my toy car. Another force is gravitational force which means a force that is attracting two objects it is non contact force. I let go of a tennis ball and it's causing gravitational force, it just falls straight to the ground. One other force is normal force which is a force from a surface and is usually pushing the object up. I push my toy car forward and its causing normal force. Lastly another force is tension force which is a pulling force that is in a string, it can also be a rope or chain. I tied my toy car with a string and I'm pulling the string its causing tension force.
Tuesday, October 21, 2014
Modeling Acceleration
Modeling Acceleration
How this shows acceleration is that at 1 second it is about 2-3 meters and at 2 seconds it at 9 meters and at 3 seconds it at 28 meters and at 4 seconds its at 31 meters and at 5 seconds it at 50 meters. This shows the rate of velocity of an object that changes over time. If this where a velocity graph it will be a linear function. Yes this is a good model because the object is moving at every second and I can see the curve line. Also I can see the change of speed and that shows acceleration.
How this shows acceleration is that at 1 second it is about 2-3 meters and at 2 seconds it at 9 meters and at 3 seconds it at 28 meters and at 4 seconds its at 31 meters and at 5 seconds it at 50 meters. This shows the rate of velocity of an object that changes over time. If this where a velocity graph it will be a linear function. Yes this is a good model because the object is moving at every second and I can see the curve line. Also I can see the change of speed and that shows acceleration.
Monday, October 20, 2014
Acceleration
Acceleration
A sports car and a school bus are driving and the speed limit is 30 Mph, the school bus will drive a lower acceleration than the sports car because sports car usually have a greater acceleration they tend to speed up a lot. They both will possibly have a constant velocity because the school bus and the sports car distance and speed will stay the same. Once they see the red light the sports car and the school bus will have a negative acceleration since there will be slowing down. For the school bus it will be easier for it to slow down because it wasn't going as fast as the sports car.
A sports car and a school bus are driving and the speed limit is 30 Mph, the school bus will drive a lower acceleration than the sports car because sports car usually have a greater acceleration they tend to speed up a lot. They both will possibly have a constant velocity because the school bus and the sports car distance and speed will stay the same. Once they see the red light the sports car and the school bus will have a negative acceleration since there will be slowing down. For the school bus it will be easier for it to slow down because it wasn't going as fast as the sports car.
Thursday, October 9, 2014
GUESS Method
"GUESS" Method
G- given: state any information in the problem
Name all the information they provide you, and make sure you include all variables and units
U- unknown: what the question is asking you
Find out what the question is talking about this is where you find the variable you are trying to solve
E- Equation: State the formula you will use
This is where you will need to rearrange you equation until your unknown is on the left side of the equation by itself.
S- Substitute: substitute all appropriate info in the equation
This is where you will be need to include all units with a number in order to solve the actual answer
S- solve: complete the math
This is where you will finish finding your answer. You must include the variable and units and then box your answer
Ex: Final answer: V=.50/s
G- given: state any information in the problem
Name all the information they provide you, and make sure you include all variables and units
U- unknown: what the question is asking you
Find out what the question is talking about this is where you find the variable you are trying to solve
E- Equation: State the formula you will use
This is where you will need to rearrange you equation until your unknown is on the left side of the equation by itself.
S- Substitute: substitute all appropriate info in the equation
This is where you will be need to include all units with a number in order to solve the actual answer
S- solve: complete the math
This is where you will finish finding your answer. You must include the variable and units and then box your answer
Ex: Final answer: V=.50/s
Wednesday, October 8, 2014
Speed And Velocity
Speed And Velocity
What I think velocity means in my own words is the speed of an object or person in a given direction. The variable is always v and the units are meters per second. What I think speed means is the rate of an object or person that is able to move or operate, the act of moving rapidly. The difference between speed and velocity is that speed is just something/someone moving and velocity is the same thing but in a given direction.
Example of Average Velocity: Jackson ran from 4 meters to 16 meters in a road within 8 seconds. What was his average velocity?
16-4=? (finial initial subtracted by starting initial)
12 meters/8 seconds (using average formula)
final answer: 1.5 meters/second
Example of instantaneous velocity: I threw a pencil from 0 meters to 6 meters at 3 seconds. What is my instantaneous velocity?
What I think velocity means in my own words is the speed of an object or person in a given direction. The variable is always v and the units are meters per second. What I think speed means is the rate of an object or person that is able to move or operate, the act of moving rapidly. The difference between speed and velocity is that speed is just something/someone moving and velocity is the same thing but in a given direction.
Example of Average Velocity: Jackson ran from 4 meters to 16 meters in a road within 8 seconds. What was his average velocity?
16-4=? (finial initial subtracted by starting initial)
12 meters/8 seconds (using average formula)
final answer: 1.5 meters/second
Example of instantaneous velocity: I threw a pencil from 0 meters to 6 meters at 3 seconds. What is my instantaneous velocity?
Tuesday, October 7, 2014
Distance Vs Time Graphs
Distance Vs Time Graphs
What we did in class is that we tried to match graphs that had different change of direction and speed. We did a total of 7 graphs and we had to explain what was going on in the graphs. On some graphs the lines where very steep and on some of them they had horizontal lines, meaning the object/person was not moving. These graphs would be necessary in science class because some of these graphs are similar to real life situations, and most real life situation take place about science. Also these graphs are necessary in science class because it shows the distance and time the object has moved.
What we did in class is that we tried to match graphs that had different change of direction and speed. We did a total of 7 graphs and we had to explain what was going on in the graphs. On some graphs the lines where very steep and on some of them they had horizontal lines, meaning the object/person was not moving. These graphs would be necessary in science class because some of these graphs are similar to real life situations, and most real life situation take place about science. Also these graphs are necessary in science class because it shows the distance and time the object has moved.
Tuesday, September 30, 2014
Distance VS Displacement
Distance VS Displacement
What distance means in my own words is the total length amount of space between two things or people for
Example: I ran 100 meters home.
The distance will be: 100 meters
What displacement means in my own words is the moving of an object or a person from its starting position to the ending position.
Example: Jackson drove 5 meters west and another 3 meters west.
The displacement will be: 7 meters WEST
Make sure you always include the direction they moved.
An example I notice everyday using Distance is walking.
An example I notice everyday using Displacement is cars.
What distance means in my own words is the total length amount of space between two things or people for
Example: I ran 100 meters home.
The distance will be: 100 meters
What displacement means in my own words is the moving of an object or a person from its starting position to the ending position.
Example: Jackson drove 5 meters west and another 3 meters west.
The displacement will be: 7 meters WEST
Make sure you always include the direction they moved.
An example I notice everyday using Distance is walking.
An example I notice everyday using Displacement is cars.
Wednesday, September 24, 2014
Metric Units
Three things that have the metric units in my home is the, Coconut Oil, Canada Dry Can, and a Pepsi bottle. The Coconut Oil has 414 milliliters. The Canada Dry Can has 221 milliliters and the Pepsi bottle has 2 litters. These 3 items are in metric units because they are the units of volume, and volume is the amount of space an object occupies. These are in Metric Units because it tells us how much we are consuming or how big/small the object is.
Three things that have the metric units in my home is the, Coconut Oil, Canada Dry Can, and a Pepsi bottle. The Coconut Oil has 414 milliliters. The Canada Dry Can has 221 milliliters and the Pepsi bottle has 2 litters. These 3 items are in metric units because they are the units of volume, and volume is the amount of space an object occupies. These are in Metric Units because it tells us how much we are consuming or how big/small the object is.
Tuesday, September 23, 2014
Estimating Distances
The length of my front house is 9 meters. I think this estimate is reasonable because it is 900 centimeters and on the looks of it it does look like 9 meters. The back of my house is a little bit bigger since the back of my house has more space. The length of the house should be smaller than the width. Estimating Distances doesn't have a right or wrong answer, estimating distances is just a roughly calculation.
Monday, September 22, 2014
Distracted Driving
Distracted Driving
Distracted Driving is not a good thing because you never know what will happen if you get distracted by someone or something either you might get into a car accident or worse. Also Distracted Driving is bad because you may get into a severe injury. When I was in a car the driver which was my brother, was distracted by his phone. He kept getting text messages from someone which seemed to me was very important to him since he looked very anxious. How I felt about it was scared and definitely not safe. Even though he is my brother and I'm suppose to feel safe around him well I wasn't. Being distracted while driving is not a good thing and isn't safe, you can get easily distracted while driving. You can easily get distracted by your phone, beverages or even passengers in the car.
Distracted Driving is not a good thing because you never know what will happen if you get distracted by someone or something either you might get into a car accident or worse. Also Distracted Driving is bad because you may get into a severe injury. When I was in a car the driver which was my brother, was distracted by his phone. He kept getting text messages from someone which seemed to me was very important to him since he looked very anxious. How I felt about it was scared and definitely not safe. Even though he is my brother and I'm suppose to feel safe around him well I wasn't. Being distracted while driving is not a good thing and isn't safe, you can get easily distracted while driving. You can easily get distracted by your phone, beverages or even passengers in the car.
Thursday, September 18, 2014
Reaction Time Homework
Reaction Time Homework
Some things in your life you need to react to is when your driving. For example when you are in a car going 80 MPH and there is a child that just ran a cross the road you will need to react fast by hitting the breaks so that the child wont die. Another thing in your life you will need to react to quickly is when a ball is going straight towards you, you wont just stand there still you'll need to react quickly if you don't want to get hit. Finally a last reason where you'll need to react fast is when your playing any type of sport like baseball for example, when the pitcher throws the baseball the batter will need to react quickly so that the batter can hit the ball and make a home run. Reaction Time is a measure how quickly someone or something can respond/react to.
Some things in your life you need to react to is when your driving. For example when you are in a car going 80 MPH and there is a child that just ran a cross the road you will need to react fast by hitting the breaks so that the child wont die. Another thing in your life you will need to react to quickly is when a ball is going straight towards you, you wont just stand there still you'll need to react quickly if you don't want to get hit. Finally a last reason where you'll need to react fast is when your playing any type of sport like baseball for example, when the pitcher throws the baseball the batter will need to react quickly so that the batter can hit the ball and make a home run. Reaction Time is a measure how quickly someone or something can respond/react to.
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