Friday, 22 June 2018

3 laws of motion

3 Laws Of Motion



First Law Of Motion - INERTIA
  1. A still object will stay as is - it won't move
  2. A moving object will keep moving with the same speed
  3. Won’t change unless acted upon by an unbalanced force
  4. Things want to stay where they are
  5. Laziness - The object won’t move


Second Law Of Motion - FORCE & ACCELERATION

Force = Mass x Acceleration
Law states that the rate of change of momentum of an object is directly proportional to the unbalanced force
in the direction of force.

The acceleration of an object is directly proportional to the net force exerted and inversely proportional to the
object’s mass


Third Law Of Motion - ACTION & REACTION
  1. When you kick the ball, your leg is the force and the ball is the motion.
  2. For every action, there is an equal and opposite reaction.
  3. A force in anything.
  4. Gravity is a force
  5. Action is when you do something
  6. Reaction is what happens







Newtons 3 Laws of Motion



First of all, what are the 3 laws of motion? What does this mean? Well, Issac Newton is a
famous scientist who came up with these 3 laws of motion. Which are - 1) Inertia, 2)
Force & Acceleration, and 3) Action & Reaction. All of these laws have different
meanings and they all do different things. These are involved in our life a lot, even
when you don’t know it. So...for those who need to know what these laws are, I’m here
to tell you. Lets Go!


First Law of Motion - Inertia


So, what is Inertia? Inertia is when an object stays in its same position. This means that
something is very hard to move and will often stay in its unchanging position. It will
remain still unless acted upon by an external or unbalanced force. Inertia is the resistance
of any sort of physical object to any change in its state of motion. For example - You
won’t be able to push a wall forward, or you won’t be able to pull it towards you. Unless
you use something destructive like a wrecking ball or another hard machine used for
such things like breaking walls or bustings things down.


Second Law of Motion - Force & Acceleration


What is Force & Acceleration? Well, force is any push or pull acted upon an object in any direction. So, if I push a box left, me pushing it is the force and the box moving is the motion.
But, acceleration is more complicated then that. Acceleration doesn’t only have a
magnitude, but it also has a direction. This law states that force on an object equals the
mass times the acceleration. Mass x Acceleration = Force. Also heavy and light objects
have different movements.


Third Law of Motion - Action & Reaction


What is Action & Reaction? Newton said, “For every action, there is an equal and
opposite reaction.” Which means that if something is acted upon there will always be a
reaction. Like, if I hit someone, they will react in some way. An Action is when you do
something, like if you kick a ball thats an action. A reaction is when you’re action makes
something react to what you did. Reaction is what happens after you’re action.


Facts about Issac Newton


Issac Newton was a famous scientist. He worked in many areas of mathematics and
physics. Newton developed the theories of gravitation in 1666, thats when he was only
23 years old. About 20 years later, he created his 3 laws of Motion. In 1687,
he published, ‘Philosophae Naturalis Prinicipia Mathematica’ This was regarded to be
the one of the important books in the history of science. In it he describes universal
gravitation and the 3 laws of motion.


You can find more facts about Issac Newton online using this link - Issac Newton Facts





Thursday, 21 June 2018

Fractions

WALT:  add and subtract fractions and decimals

The first thing I did was change 1/2 to 2/4  and then add the two  numerators and got the answer 3/4. 

Thursday, 7 June 2018

Dear Mr Vanhorn


In Room 2 Literacy we got to write a letter to a guest in our class, Our guest's name is Mr Van horn. He is new to our school. In the letter we had to write stuff about ourselves. We also got to ask some questions about him, We are quite lucky to be having a guest in our class.

Thursday, 31 May 2018

Sentence Combining


 WALT: to combine sentences



Year 8 camp 2018

Last week from the 23rd of Wednesday till the 25th of Friday, The year 8’s went on a school camp In Thames at Kauaeranga Campsite. While the year 8’s were gone the year 7’s stayed back and did some team building. I felt excited to go on camp because I was excited to become a good leader. When we got there we went off and did our first activity. There were 4 groups named: Thames,Kauri,Kauaeranga and Coromandel. My group was coromandel, (Coromandel Represent) and our first activity was Go karts, Go karts was one of my favorite activities. There were 7 activities, Go karts,BMX track,Archery,Air Rifles, Flying fox,Paintball and The Train. A nervous moment from camp was trying all of the activities. The scariest activity I was scared to try was go karts, but I tried it and it ended up being really fun. At camp I really enjoyed hanging with the teachers because I got to know them better. A moment that I was proud of was becoming a better leader. I learnt how to be more encouraging and learnt how to be more confident in myself. A moment that was challenging was trying to get to sleep at night.The food that we had at camp was amazing ( But not better than mums dinner). I really enjoyed year 8 camp, I wish I could go back.The reason we had camp and team building was for the year 7’s and 8’s to learn how to be a leader.  

Wednesday, 30 May 2018

Fractions Finale Pres


WALT:  add and subtract fractions with different denominators

Fractions Finale

Fractions Finale Doc

Fractions Finale

I want to add ½ with ¼. First I change ½ to  then I add

⅓ + ⅙. ⅓ =   2/6 + ⅙ = 3/6 or ½

¼ + ⅛.  ¼ = 2/8 + ⅛ =

How can I change ⅔ into sixths ( 4/6)


How can I change ⅔ into twelfths ( 8/12)


⅓ + ¼ = 7/12

⅓ = 4/12   ¼ = 3/12


⅓ + ⅕ = 8/15

⅓ = 5/15  ⅕ = 3/15

⅙ + ⅛ = 14/48 or 7/24
⅙ = 8/48    ⅛ = 6/48

1/10 + 1/100 = 11/100

1/10 + 1/1000 = 101/1000


⅓ + 1/7 = 10/21

¼ + ⅕ = 9/20

⅓ + ⅖ = 11/15

List 5 equivalent fractions for:

¼ = 2/8, 3/12, 4/16, 8/32, 5/20

⅓ = 2/6, 4/12, 3/9, 5/15, 6/18

⅕ = 2/10, 4/20, 3/15, 5/25, 6/30

⅙ = 2/12, 3/18, 4/24, 5/30, 6/36