IRS Project Presentation Done By Randy Tan

Research Question Does wearing a swim cap or a swimsuit make you swim faster? Does wearing a swim cap or a swimsuit make you swim faster?

Hypothesis Wearing a swimcap and a swimsuit will make you swim faster Wearing a swimcap and a swimsuit will make you swim faster

Background Research: International Requirements and Limitations Swimwear must be approved by FINA at least 12 months prior to any competitions. Swimwear must be approved by FINA at least 12 months prior to any competitions. No technological-doping mechanism of any kind (compression of body, extra water-repellent) is allowed for the swimsuit. (e.g. the banned “Blue Seventy Nero Comp” and the banned “Speedo LZR racer swimsuit”) No technological-doping mechanism of any kind (compression of body, extra water-repellent) is allowed for the swimsuit. (e.g. the banned “Blue Seventy Nero Comp” and the banned “Speedo LZR racer swimsuit”) The swimmer must wear only one swimsuit in one or two pieces. No additional items, like arm bands or leg bands shall be regarded as parts of a swimsuit The swimmer must wear only one swimsuit in one or two pieces. No additional items, like arm bands or leg bands shall be regarded as parts of a swimsuit Swimwear for men shall not extend above the navel nor below the knees, and for women, shall not cover the neck, extend past the shoulder, nor shall extend below knee. Swimwear for men shall not extend above the navel nor below the knees, and for women, shall not cover the neck, extend past the shoulder, nor shall extend below knee. All swimsuits are to be made with textile materials. All swimsuits are to be made with textile materials.

Background Research : Factors that affect speed 1. W ater Resistance 2. S wimmer’s Energy level 3. U nderwater pressure 4. C haracteristics of swimwear (e.g. tightness of swimwear, size of swimwear etc.) 5. W eight of swimmer 6. C urrent Flow 7. T urbulence 8. S kill of swimmer

Controversy Behind The Question Whether wearing different types of swimwear ( e.g. Swim cap, swimsuit ) will affect your speed.

Experimental Procedures Step 1: Swim until you are very tired. Before you start, get someone to take pictures Step 1: Swim until you are very tired. Before you start, get someone to take pictures Step 2: wear swimming trunks, get into the swimming pool and swim 50 meters freestyle at the surface. Take down the timing. Step 2: wear swimming trunks, get into the swimming pool and swim 50 meters freestyle at the surface. Take down the timing. Step 3: Dry yourself, wear a swim cap, get into swimming pool and swim 50 meters freestyle at the surface. Record the timing. Step 3: Dry yourself, wear a swim cap, get into swimming pool and swim 50 meters freestyle at the surface. Record the timing. Step 4: take off swim cap, change to swim suit, get into swimming pool and swim 50 meters freestyle at the surface. Record the timing. Step 4: take off swim cap, change to swim suit, get into swimming pool and swim 50 meters freestyle at the surface. Record the timing. Step 5: Dry yourself, wear back swim cap, get into swimming pool and swim 50 meters freestyle at the surface. Record the timing. Step 5: Dry yourself, wear back swim cap, get into swimming pool and swim 50 meters freestyle at the surface. Record the timing. Step 6: Repeat step 2 to step 5 once each week for 4 more weeks. Step 6: Repeat step 2 to step 5 once each week for 4 more weeks.

Problems and Solutions Problem no.1: As you swim more and more, you will get slower and slower until a certain speed. Solution no.1: Swim until that limit, then start the experiment Problem no.2: As the water pressure increases as you swim deeper, it will affect your speed. Solution no.2: Swim at the surface Problem no.3: The weather will affect the current (e.g. strong winds make rippling waves across a swimming pool) Solution no.3: Do the experiment on sunny days only, and make sure no one is swimming in front of you. Time SpeedSpeed

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