Radio Dissasembly Science Period 4

QUESTIONS IN ORDER

1. It is a Sony Radio/Cassette boombox (Model CFS-B15)

2. This object connects to AM and FM radio stations and plays music stations or talk shows. You also can insert a cassette tape and play whatever is on it.

3. The company Sony created this Radio/Cassette boombox

4. This object has changed a lot over time. It has changed in mostly two ways. First of all the object has decreased in size a lot over the years and has gotten to size that it can be as small as a chip. Also the price has gone down a lot.

5. We selected this object because it’s looked interesting and relatively simple to take apart.

6. The safety considerations we will acknowledge during deconstruction is checking for anything that may be able to shock us or cut us. Also, we will be safe by wearing safety gloves and glasses.

7. There are pictures of inside the radio while it’s open. Also the manual is posted online that we looked at.

CATEGORIES

Screws-Hold the parts of the radio together

Wires-connect the cricuit board to other parts of the radio and transfers electrical energy.

Circuit Boards-These are what control the function of the radio and connects electrical components with conductive tracks

Plastic Parts-These include the casing around the electrical parts. These are also parts of the tape playing function and the outside of radio.

Metal Parts-these parts assist in the conducting of electricity. These parts also are main components in the speakers.

CHEMISTRY CONNECTIONS

Copper-In the wires that transfer electricity. Copper's atomic number is 29 and is soft and moldable. This metal is a good conductor and is able to be easily shaped to fit any

Iron- Used in combination with other elements to make the screws in the radio. Atomic number 26 with an atomic mass of 55.845 u ± 0.002 u. Iron is used in many different substances and is a hard substance.

Compunds

Plastic-a polymeric material that has the capability to be easily molded or shaped. Used in the casing of the radio and the plastic around the wires. Plastic is also used in the tape playing mechanism.

Carbon Steel-Used in most of the metal components. Steel is a combination of iron and other metals. Carbon steel is steel in which the main alloying/combining element.

TRANSFER OF ENERgy

The buttons have potential energy because the buttons are not pressed down but are still standing up

The potential energy is turned into mechanical energy when it is pressed down because the potential energy is transferred into kinetic energy

The mechanical energy is transferred to a part of the radio that activates the electrical current which powers the radio.

Physics Connections

Newton's 3rd law states that, "For every action there is an equal and opposite reaction"

When a button is pressed on the radio energy is tranferred to another part of the radio and will activate it. When the button is pressed the equal reaction acts upon another mechanism in the radio to perform a function. For example when you push the playbutton the reaction is toward another mechanism in the radio to make the tape play.

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