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Power point on Energy

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Choose a topic of your choice and write your names in , three of you will be in a team.

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Choose a topic of your choice and write your names in , three of you will be in a team.

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Find attached the names of the experiment

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Find attached the names of the experiment

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Hover (Air filled balloon)
Procedure -http://inspirationlaboratories.com/h-is-for-hovercraft/
Balloon rocket
Procedure -https://web.kidsactivitiesblog.com/7918/balloon-rocket
Chemical rockets
Procedure -You may need to write a procedure of your own.
Catapult
Procedure -https://www.themaven.net/kidsactivities/kidsactivities/easy-and-fun-catapult-for-kids-to-make-LPR1K9OQDEKpv1uIjf9zcg
electric circuit
Procedure -https://www.wikihow.com/Make-a-Simple-Electrical-Circuit
Rubber band boats
Procedure - Oxford Big ideas -Science 8 Text book page 92.

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1.Do the experiment on creating the toy.
2.Answer the questions as you work through your experiment.
Questions
Write a
1.Title for the experiment.
2. List of the materials needed
3. Write down the method of how you made the toy.
4. Write down the name of the stored energy in your experiment.
5. Name the forms of energy that the energy in your experiment got transformed to.
6. To what extent is the energy found at the start of the experiment got converted to usable energy?
7. If you like this experiment to be converted into an investigation, what will be the variables in this experiment?
. Explain how this experiment could demonstrate / be used  in real life situations?

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2.
- Disk DVD -1
-Drinking bottle cap-1
-Balloon-1
-Hot glue gun-1

3.
- First we gathered all our materials.

- We tried to find the right place for the water bottle lid.

- Than we stuck the bottle cap in the middle of the DVD disk with the hot glue gun.

- That the air of the ballon does not go out that quickly there is a little cut in the lid.

- At last we filled the ballon with air and put it onto of the bottle cap.

-We watched how the ballon went smaller and smaller.

-Because of the drinking cap from a bottle the air went out quite slowly.

4. There is Elastic Potential energy stored in the balloon which let the balloon stretch and expand when we blew into it, it became bigger because of it's elastic potential energy.

5.
- When we did the experiment the energy converted is the Mechanical energy and the sound energy.
- The sound energy can be heard when the balloon gets smaller and smaller. The balloon decreases on its size because the air in the ballon slowly makes its way out through the water bottle cap, under the disk.
- The mechanical energy is seen when the air in the balloon comes out through the bottom of the disk and then creates force, which than causes the disk to slide.

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1. Electric circuits
2. Materials: two batteries, a light bulb, a light switch, four electric wires
3. Step 1: Take the materials out of the white Styrofoam box.
Step 2: Set up the two batteries next to each other.
Step 3: Place the light bulb and the switch on the table.
Step 4: Connect the batteries, light bulb and light switch with the four crocodile wires. Make sure that the plus and minus sides are not connected together.
Step 5:  switch on the power to see the circuit working.
6. Most of the energy from the start is transformed into the light and heat.
4. The chemical energy is stored inside the batteries
5. It is transformed into electrical energy. This then produces light energy
6. Most of the energy from the start is used but some are wasted as heat energy.
7. The variables of this experiment would be that we could change the amount of light bulbs, amount of batteries or we could change the type of light bulb
8. This experiment could be used in real life situations when you don't have any light and it is dark so you do this so you can see better

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4.
7. The variables to change this experiment can be:
-changing the size of the disk
-change the size of the balloon
-change the side of the water bottle cap
-add more air in the balloon
-use a different balloon shape
-do the experiment on a rougher surface to see if it will still slide as much
-Conduct the experiment on an un-even surface

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2. Materials:
- 4 spoons of baking powder
- 30ml of vinegar
- 1 plastic rocket toy
- 1 spoon
- 1 50ml beaker
3. Method:
-Get the plastic rocket toy and open it.
- hen take 4 spoons of Baking powder and put it in the rocket toy.
- Attach the rocket together.
- Collect the 50ml beaker and measure 30ml of vinegar
-Remove the top part of the rocket (grey triangular lid) and pour the 30ml of vinegar inside.
- Lastly quickly pop the lid back on and watch your rocket start.

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2. Materials:

1 Hot glue gun

5 Craft sticks / popsicle sticks

1 Bottle cap

4 Elastic bands

Sticky tape

3. Method:

- Step 1: Stick three craft sticks together with an elastic band on each side of them.
- Step 2: Stick two craft sticks together with one elastic band on one side.
- Step 3: Force apart the two craft sticks, so it can fit the three in between the the two craft sticks.
- Step 4: Use an elastic band to permanently attach the craft sticks together.
- Step 5: Use the hot glue gun to stick the bottle cap to the top of the craft sticks where you can use it as a spring.
- Step 6: Take the sticky tape and scrunch it up into balls
- step 7: Shoot out balls out of the catapult.

4. stored energy:

Elastic potential energy

5. Energy transformation:

Mechanical  energy

Sound energy

6. All energy is converted is not converted to useful energy , because energy is transformed to sound energy which is wasted in this experiment

7. variables:

The force with which you hit the lever of the catapult

The distance the sticky tape balls can fly to in cm

Length of catapult

Height of catapult

Size of the bottle cap

The amount of elastic bands

Weight of the sticky tape balls

8. real life situation:

If someone wanted to make a seatbelt, they would have to measure how far a car can catapult someone out of the car in a car crash to know how strong the seatbelt would have to be so that it would hold you but let you move around at the same time. This is used all the time in mechanical engineering.

- by : Johanna, Sophie and Aadya

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6) In this experiment the energy that is being used is kinetic energy to move the CD but the energy that is being wasted is the sound energy.
8) You could use it in an ice skate such as adding a bit of a cushion (ballon) to make you skate faster and easier on the ice.

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1.Rubber Band Boat2. A. Milk Cartons 1Litre X2, B. Scissors X1, C. Rubber bands X3, Container Of water4. Potential Elastic Energy5. The Potential elastic energy is converted to Kinetic mechanical and kinetic sound energy                              6. The boat was not very effective because a lot of energy is converted to sound energy                                          7. Amount of water in the Container, The amount of rubber bands used in the boat. The size of the Fuselage of the boat. The weight, and amount of rubber bands                                            8 These boats could be used in Full size and if they worked they would be extremely environmentally friendly.

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1.Rubber Band Boat2. A. Milk Cartons 1Litre X2, B. Scissors X1, C. Rubber bands X3, Container Of water4. Potential Elastic Energy5. The Potential elastic energy is converted to Kinetic mechanical and kinetic sound energy                              6. The boat was not very effective because a lot of energy is converted to sound energy                                          7. Amount of water in the Container, The amount of rubber bands used in the boat. The size of the Fuselage of the boat. The weight, and amount of rubber bands                                            8 These boats could be used in Full size and if they worked they would be extremely environmentally friendly.

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Potential Energy:
Chemical Energy.

5.

There was Sound Energy and
Mechanical Energy.

6.
Not all the energy was used because some of the energy was wasted through the sound.

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7.  Independent Variable Chemical reaction of baking soda and vinegar to make the rocket fly. 

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7.  Independent Variable Chemical reaction of baking soda and vinegar to make the rocket fly. 

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8. These types of chemicals are also used in real life rockets for fuel as the rocket uses a lot of fuel and the fuel which goes in vehicles is expensive. The fuel a real rocket uses is similar to the one in the science experiment.

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Method1. get out all the materials.2. cut out the shape of the boat.3. cut out the shape of the propeller.  4. put two butterfly pins in the boat even spaced on opposite side of boat. 5. connect the rubber bands to the pins.6. spin the propeller around the rubber bands.7. adjust the sizes so the propeller doesn’t hit the side of the boat.

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Method1. get out all the materials.2. cut out the shape of the boat.3. cut out the shape of the propeller.  4. put two butterfly pins in the boat even spaced on opposite side of boat. 5. connect the rubber bands to the pins.6. spin the propeller around the rubber bands.7. adjust the sizes so the propeller doesn’t hit the side of the boat.

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Height of the rocket
Amount of vinegar
Amount of baking powder
Dilution of the vinegar
Whether the baking powder is powder or clumps
Speed of the rocket

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Balloon rocket                     Arjun Amiyo Arjan

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Balloon rocket                     Arjun Amiyo Arjan

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Materials:

2 Balloons

10 Meters of Fishing string

1 roll of Tape

1, 4cm Bottle

1 Straw cut into two inch pieces

3. Method:

1. Take the bottle and cut it open so it is a cylinder with no top or bottom. The cylinder should be around 4cm long.
2. Using scissors take the straw and cut 1 piece of straw into
3. Find a large area roughly 30 meters long.
4. Take your fishing line and pull it from one side to the other, you can use tape to stick the rope or you can tie it.
5. Before you tie the end of the string to the fence put the piece of straw in the line.
6. Afterwards tape the ring made from the bottle onto the straw.
7. Blow up the balloon and put the end through the ring without letting any air out.
8. Pull the balloon so it is tight to the ring and then tape top part of the ring to the balloon.
9. When you are ready let go of the balloon and watch it go.

4. The energy stored in our experiment was elastic potential energy as the balloon is stretched by the air inside the balloon. The elastic energy is released to make the balloon move.

5. The energy that was transformed into was after the elastic potential energy was released it had converted into mechanical energy as the balloon moved. The balloon was releasing air which causing the balloon to lose its potential energy. As the balloon moved it created a whistling sound when the air moved it created a sound of energy which was caused by the balloon releasing the elastic potential energy which made the balloon move which created a whistling sound.

6.

The mechanical energy was the only usable energy used. There was excess energy for example sound and heat energy which were wasted. Not all the energy was able to be used because when the balloon moved it created a whooshing noise which released sound energy.

7. things we can change
-type of balloon
-type of string
-quantity of balloons
-type of gas inside the balloon
-weight of the balloon
-amount of gas in the balloon

8. we can use this type of elastic energy for moving forward a vehicle by air. If you take a hovercraft for example, we can use a big balloon that is filled with air to get the hovercraft to a fast speed and then let the fan on the back take over it. This idea we could use for anything to get it to a fast speed in a few seconds.