Newton's Second of Law of Motion is that acceleration of an object is directly proportional to the net force on an object. But, the acceleration is inversely proportional to the mass of an object. This is a picture of my two brothers throwing two of the same size ball. I know that the baseball goes faster because the mass of the object is greater than that of the tennis ball. Newton’s Second Law also tells me that acceleration is inversely related to the mass of the object meaning that the more mass something has, the slower the acceleration would be. Also the less mass something has, the faster it will accelerate.
Sunday, October 23, 2011
Monday, October 17, 2011
First Law of Motion
This is a picture of my friend Brachelle blocking a ball with another ball when she was playing dodge ball at our Ring Social this past Friday. This picture shows Isaac Newton’s First Law of Motion, which is objects in motion will tend to stay in motion unless acted upon by an outside, unbalanced force. The green ball in the picture coming towards Brachelle remained in motion until she hit it away with the purple ball which acted as the outside, unbalanced force that stopped the green ball from remaining in motion. Newton’s First Law of Motion also states that objects at rest will tend to stay at rest unless acted upon by an outside, unbalanced force.
Thursday, October 6, 2011
Wednesday, October 5, 2011
Cars
A vector is something that shows direction and magnitude. An example of a vector is a car. A car goes in a multitude of directions and can travel at many different speeds. I had a behind the wheel with my driving instructor and I noticed that cars relative to me and are going the same speed appear to be going no where from me, they look it looks like we are moving as one. Also, I noticed that when cars are opposite from the median relative to me, they appear to be passing really fast even though they are probably going the same speed. They appear to be moving really fast because they are going in the opposite direction.
Monday, September 26, 2011
What is A Vector?
A vector is a quantity that is specified by both a magnitude and a direction. Magnitude is muchness and direction is in which way something is going. An example of vector would be arrow. An arrow points in directions and tells you how far you can go. You usually find arrows on signs, directing people towards places. Along with the sign, you usually find how far you need to go in the direction that you intend on going. The half arrow above the letter A in my picture is symbolizes that the arrow above is a vector and it’s called boldface.
Tuesday, September 20, 2011
Running For Days.
My friend Ilihia is such a committed athlete. She always finds time to run either during school or afterwards. Her goal is to run at least three miles per day. However, Ili tells me that throughout the time she runs, she doesn't run at a consistent speed. Sometimes she slows down or speeds up, depending on her mood. In other words this relates to Physics because, Ili changes her acceleration and speed over the period of time she runs. She may run 3 feet per 5 seconds at one point in time and after she gets tired she might run 3 feet per 10 seconds. So if you were to find her average, it wouldn't be accurate because of the fact that she doesn't run at a consistent speed.
More Kinematics
This is a picture of my friends and I at a gymnastics place jumping on a trampoline. This shows Kinematics because each one of us are jumping with different velocities and speeds. Some of us were jumping higher than others, which kept us up in the air for a longer period of time. Some of us jumped quicker than each other, which means we jumped at different velocities. I can calculate how high I jump using the formula d = vt. For example if I jumped up at 1 meter per second squared for 1.5 seconds I would have jumped up 1.5 meters.
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