“A body continues in a state of rest or uniform motion in a straight line unless it is acted on by an external force”
In this video, the first law is shown by the ball being kicked. This shows that when the ball was at rest, it wanted to stay at rest. Then once I kicked it, it rolled, and wanted to stay rolling. But due to unbalanced forces such as friction, the ball eventually came to a stop. If there were no other forces acting on the ball itself though, then it would have kept rolling forever. The ball we used was also hollow, and very light, so it was easier to kick, but if we had used a basketball, or a bowling ball, it would have been much harder to get going, because they would have more inertia.
“if an unbalanced force acts upon a body, the body will accelerate”
In the video, the body would be represented by the ball, which was accelerated by sarah’s foot, which would be considered the unbalanced force, or the Net Force. the video shows that when the net force acted on the body, the body accelerated. however, if the ball was as heavy as a rock, or has more mass, then it would not have accelerated as high, or as fast as the pink ball we used. when a body is accelerated it is inversely dependent on the mass of the object, but directly dependent on the unbalanced force. we found also that when sarah kicked the ball harder, it went further, but when she dropped it from higher before kicking it, the ball went higher, which also shows again how the acceleration of the body is directly dependent on the net force.
Newton’s Third Law: “For every action, there is an equal and opposite reaction”
to demonstrate Newton’s Third Law, we took our ball and threw it towards the ground, and as a reaction, the ball came back up at an equal force. This clearly demonstrates, that for the action (throwing the ball to the ground), there was an equal, and opposite reaction. The ball, exerted a force towards the ground, and pushed itself into the Earth. The Earth, in return, pushed back on the ball, and exerted the ‘reaction’, which pushed the ball back into the air. This was also a demonstration of ‘Elastic Momentum’, where one object comes in contact with another object, and the first is bounced back. I also found that when we dropped the ball, rather than throwing it, it did not come back up with as much force.
A quadratic function: when the variable is higher than 2
“Quadratic function is a function that can be described by an equation of the form f(x) = ax2 + bx + c, where a ≠ 0″ – definition of quadratic formulas
example:
2. 1. when the values are a=1, b=0, and c=0, the line is perfectly symmetrical with the base of the curve at 0, and the center of the curve is along the y axis.
3. a)
when a<0 the curve flips upside down and as a becomes smaller, the curve becomes thinner. the minimum point is 0.
b)
when a>0 the curve is upward facing and as a becomes bigger, the curve becomes thinner. the maximum point is 0.
c) when -1 < a < 1, the curve is very large with the base of the curve on the x axis
d) when a > 1 or a < -1 the line is very large as well, just like c), the curve is wide
4.
i. the vertex is the minimum point if a is bigger than 0
ii. the vertex is the maximum point if a is smaller than 0
5. a = 0.5, c = 0 and b changes. the vertex moves in a “circle” of sorts when a and c are constant and b moves.
6. a = 0.5, b = 2 and c changes. the vertex moves along the y axis when c moves and a and b are constant.
Ici est une histoire d’horreur. Avec un monstres, extraterrestre, et un orage. Une nuit, il y a un orage, et une princesse. Elle est drôle, belle, et très intelligente. Elle n’a pas amies ! Elle a pleuré et pleuré ! Alors, elle à aller à fête, rencontre un ami ! Ensuite, elle a rencontré un Prince ! ‘Enchante madame’ il a dit. ‘Bonjour monsieur’ Elle à répondue. Il été beau. Elle a l’admire, et elle a crié parce qu’il est trop beau ! Mais, il été un monstre ! ‘Oh non ! Il a été très jaunis !’ Il à couru l’après, alors, elle a crié parce qu’elle est effrayée ! Elle a dû caché par une monstre et les extraterrestres !
‘Comment je vais survivre ?!’ Elle a voulu partir parce qu’elle été effrayée, et elle a voulu aller à sa maison ! Les monstres vont la manger, et elle va mourir ! ‘S’il vous plait, ne me mange pas ! Je ne veux pas mourir !’
‘Nous ne voulons pas mange, nous voulons jouer avec vous !’
‘Quoi ?’ Elle été désorienté. ‘Je opinion vous voulez manger-moi ! Pourquoi voulez-vous jouer avec moi ?’
‘Parce qu’vous êtes très intelligente ! Nous aime-vous ! Joue avec nous !’
Alors, la princesse à joue avec les monstres et elle à fait amis. Elle été heureux, parce qu’elle à amis jouer avec pour le premier temps !
Elle à n’eu pas amis avant, et présent, elle a amis ! Elle ne va pas mourir, ou pleure.
‘Aujourd’hui été bizarre et surprenant, mais la princesse a fait plus amis, quand même ils sont étranges. Des amis ont étranges, bizarre, ou choquante, nous leur aimés quand même. Vous devez apprécié amis, parce qu’ils ont votre amis, et ils aimés vous !
In this first video it explains acceleration. We see that the bus in the video speeds up with a continuous sound, and it slows down with a harsher sound. As explained, the bus speeds up, because of the change of acceleration, and there can be positive, negative, and zero acceleration. The bus slowing down is called de acceleration. Acceleration can be calculated by change in velocity divided by time. This allows us to calculate the rate of acceleration.
In this second video we see two men racing. They both are going the same speed and they are staying at the same rate of velocity, so they are racing in constant velocity. Near the end of the video they both take a fall, but one of the men gets up and continues on racing while the other man is left laying on the ground but eventually gets up and walks back towards the start. Not only is this an example of constant velocity but it is also and expample of displacement. The man who continues on will have a greater displacement and a greater average velocity based on he kept moving and the man who turned around went backwards on a negative path back to his zero starting point.
this week I learned that when you do using conversions, you have to do the conversions twice, other wise you won’t get the right answer. it’s because it is squaring the number, and you would convert 3 times if it was and so on.
this week I had an ah-ha moment when I was learning about conversions. I really thought that it was way more difficult than it is. all you have to do is move down the number line and then move the decimal which-ever direction you moved down the number line. (I have pictures but they won’t load onto the blog right now). after that all it really is, is moving the decimal.
the two compounds I found are: Tin oxide and Tin chloride. Tin oxide is used as ceramic glaze and was found by a man of the Golinski. Tin chloride does not have a name to its discoverer but it is used in oxidizing materials, and some liquid mixtures and also is used in glass. tin chloride is also used in cosmetic products. I personally like this one better because I use cosmetics enough and now I know what goes in them. 🙂 Tin has a variety of uses and has been used for thousands of years; it was even mentioned in the old testament!
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using conversions, you have to do the conversions twice, other wise you won’t get the right answer. it’s because it is squaring the number, and you would convert 3 times if it was 
and so on.