MIT Review for Final Know the differences between Renewable and Nonrenewable sources of generating electricity. • • • • • • Coal Solar Water Wind Nuclear Gas Nonrenewable Renewable Renewable Renewable Nonrenewable Nonrenewable Know the Basic types of Electrical Circuits • Series • Parallel From Photography • What served as the ‘APETURE’ on the pinhole camera ? • Why is a photographic negative called a negative? • Why are we able to use a safelight when developing the pinhole camera pictures? Photography Continued • Why is the shutter ‘delayed’ when taking a picture with a digital camera? • Know some of the different processes used to fix photographic mistakes with a software such as Photo Impact. From Bridge Building • Tensile strength • Compression strength From Bridge building • What is the SPAN of a bridge? What Is C.A.D. ? Computer Aided Design Or Computer Aided Drafting Common Orthographic Views TOP Front Right X axis and Y axis Y X Know Common Commands • To draw a line • L or line • To draw a parallel line • Offset • To make a line longer • Extend • To cut off extra parts of a line or polyline • trim What is the advantage of Double glazed windows over Single Glazed? The ‘dead air’ space between the panes of glass is a poor conductor of heat. Elastic Materials • All materials have some elasticity to them. Some just more than others. • Ability to bend and recover before breaking. Pneumatics • Calculate the force applied by a cylinder for a given pressure • F=area of piston x PSI Pneumatics • Know difference between a single and double acting cylinder Pneumatics • Difference between a 3 way valve and a 5 way valve. Mousetrap Cars How was the potential energy of the spring transferred to the wheels? How to Calculate a Gear Ratio • Number of Teeth on one gear divided by the Number of teeth on the other • Or diameter of one pulley divided by the diameter of the other. Calculate the mechanical advantage of a pulley system • Number of string supporting the load, not counting the last length Audio • How is sound measured? • An amplifier applied electrical energy to the ____ to move the _____ in order to make sound • Decibels • Voice coil • Speaker cone History/Timeline Wind Turbines • How to calculate Wattage Amps * Volts = Watts • What Variables did we tests in our designs Pitch, length, Quantity, distance and direction • What did we use to test the turbines output Multimeter • What is ‘Pitch’