P.E Revision Biomechanical Principals-Levers

In the throwing activities, the distance achieved is directly related to the speed of the release. Generally, the longer a lever is, the faster the distal end of the object will move. For this reason, the farther a discus or hammer thrower can position the implement from the body (the axis of rotation) during the turns before the release, the greater the speed of release.

In Shot Put the bicep is the antagonist and the input of force the fulcrum is the elbow joint the load is at the end of the arm.The more extended the the atheltes arm and the higher the position of the athlete the more force and speed the shot put will gain.

Observing the Effect of a Catalyst on a Chemical Reaction

AIM: To observe the effects of a copper catalyst on the reaction between zinc and sulfuric acid.

Equipment: Three test tubes test tube rack 10ml  measuring cylinder dropping pipette granuated zinc copper turnings or powder dilute sulfuric acid h2so4

Method:
1 Add roughly the same mass of zinc to test tube 1 and 3
2 Add roughly the same mass of copper to test tubes 2 and 3
3 Add 5ml of dilute sulfuric acid to test tube . Note the rate of production of gas bubbles.
4 Add 5ml of the acid to test tube 2. Note the rate of production of gas bubbles.
5 Add 5ml of the acid to test tube 3. Note the rate of production of gas bubbles.

test tube 1 Fizz
test tube 2 Bubble
test tube 3 Nothing much happened

PE Revision Test

1.Force summation is...Using as many body parts as possible and moving small mucles last to get maximum power.Or large mucles for power small mucles for accuracy and direction.


2.Projectile motion has 3 factors impacting the projectiles distance what are they
Speed of realese  Angle of realese  Height of realese


3.Balance and stability are impacted by
   BOS Base of support Width and points of contact
   COG Centre of gravity High vs low and shifting                                        What do they stand for
   VLG Verticle line of gravity Always runs through the centre of gravity

 
4.Newtons laws-there are 3 what are they give sporting examples for each Inertia-If you kick a ball it will keep rolling till an outside force stops it. F=ma. Action/Reaction-If you bounce a ball on the ground it will bounce back up.

Observing the Effects of Surface Area on Reaction Rate

Aim: To make simple observations during a reaction between calcium carbonate CaCo3 chips and powder with hydrochloric  acid HCI

Equipment:Boiling tube calcium carbonate chips and powder with hydrachloric acid measuring cylinder spatula

Method:
1:Measure 2ml of hydrochloric acid and pour this into your boiling tube.

2: Holding your boiling tube over a sink of heatproof mat add a pea-sized amount of calcium carbonate powder to your boiling tube.Record your observations below.

3:Repeat the experiment but this time use a chip of calcium carbonate that is roughly the same size as the spatula of powder you used previously.Record your observations below.
 
RESULTS

When using powder it fizzed up.
When using the rocks it bubbled.

CONCLUSION
In conclusion the more reactants there is the faster the reaction will happen or the more surface the faster the reaction occured

Investigating the Effect of Concentration on Reaction Rate

Introduction:In this experiment the effect of concentration on the rate of reaction between sodium thiosulfate and hydrochloric acid is investigated

Equipment: A conical flask measuring cylinder stopwatch black cross on the paper 0.2 mol L-1 sodium thiosulfate 1.0 mol L-1 hydrocholric acid

Method

1. Put the piece of paper with the X on the bench and put the conical flask on it.
   
2. Measure 10mL of Sodium Thiosulfate and put it into the conical flask.
3. Measure 40mL of Water and put it into the conical flask. Swirl to mix.
4. Measure 5mL of HCl.
5. Pour the Sodium Thiosulfate into the conical flask, start the timer and swirl the flask.
6. Stop timing when the you can't see the cross on the paper.
   
7. Wash out the flask thoroughly.
8. Repeat experiment 20mL of Sodium Thiosulfate and 30mL of Water.
9. Repeat experiment 30mL of Sodium Thiosulfate and 20mL of Water.
10. Repeat experiment 40mL of Sodium Thiosulfate and 10mL of Water.
11. Repeat experiment 50mL of Sodium Thiosulfate and no Water  

RESULTS

10ml of sodium thiosulfate/40ml of water 4min 43 seconds

20ml of sodium thiosulfate/30ml of water 2 minutes

30ml of sodium thiosulfate/20ml of water 54.63 seconds

40ml sodium thiosulfate/10ml of water 44.22 seconds

50ml of sodium thiosulfate/no water 33.62 seconds

Conclusion
In conclusion the more concentrated the chemicals  the the faster the chemicl reaction takes place

Good and Bad Coaching PE

The first coach was coaching his team very very aggresivly and wouldnt listen to his team he also swore at them and made them feel like shit.He also had a go at the refs  as if it was a professional game.The coach was unsuccesful his team was losing and feeling like shit at the same time.Alot of the players ended up sad and looking at the ground in shame.The second coach was alot more succesful in the training he connected with his team made them feel good he had a good tone of voice and asked his team questions and gave them feedback and at the same time was helping his team have fun and gain alot of skills in the process.His athletes responed by happily listening to him and following the drills while having fun and smiling.In Conclusion the second coach was alot better because he talked sense and gave good constructive feedback not just yelling a bunch of random stuff a his team like the first coach.He alos helped the kids have fun while learning which is the main thing you must do as a coach in junior sport as it helps them enjoy the sport and hopefully they continue to play the sport and if they wish make a career from it.

Coach 1 video  https://www.youtube.com/watch?v=DuaV6UKtP0s

Coach 2 video https://www.youtube.com/watch?v=L1rdrS0yIII

Reading Log #2

Book/Movie Title: Floyd Mayweather "Full Mayweather Documentary -Biography Channel

Author/Director: Showtime Boxing and Biography Channel

Text Type:Documentary

Date Finished: April 12th 2017

Floyd Mayweather  " Full Mayweather Documentary is a biography about the living boxing legend Floyd Mayweather Jnr also known as Floyd money Mayweather. The documentary is about how the boxing legend grew up and where he is in his career and life today.

Floyd Mayweather is a interesting person because like everyone who makes it big in the fight game worked hard and sacrificed a lot to get all the money and titles he has today. But he was also gifted with a personality that suits a fighter and has helped him to make 600 million dollars and counting over his career his personality is cocky an example of when he is being cocky during the documentary is when he is trash talking opponents in the middle of fights and when he enters the ring in one of his fights with people carrying him while hes dressed as a king.Floyd is also brash and always bragging about money and flashing tens of thousands of dollars around and driving around in supercars this causes people to either hate him or love him.But despite all of his antics and showing off Floyd is a real inspiration he grew up poor with his Dad in jail and his Mum addicted to drugs but still became the top boxer in his era .Floyd also proves you can work  hard behind the scenes putting in blood sweat and tears but then still have a lot of fun doing whatever you like whenever you like.

Floyd Mayweather and the way he lives his life has a personal impact on me and other young aspiring fighters because he worked extremely hard to get to where he is not having much money so he couldn't do stuff he wanted to but now he has the money to do fun things and buy cool cars and nice houses and he can support his family.Floyd Mayweather is an inspiration to me because he worked hard and now he gets all the benefits of his hard work and he still works hard in the gym everyday doing 8 mile runs and 12 rounds of sparring along with bag work pad work and strength and conditioning and he does all this even with all the distractions in his life.He he also proves if you work hard you can do the things you want and he proves you can have fun while working hard.This helps me in my life knowing that i need to work hard but sometimes i can take a break and have some fun.