Topic 1

One silt: silt towards the screen, band smaller and brighter. Decrease the slit width: Board amd dim. Two silts: low frequency: less bands, higher: more bonds. Close to light source: less bands. More silts width: less appear, less width: more appear. Small separation: less bands. Big separation: more bands. Maximum bands:14-18. Single-silt diffraction: wavelength of light source represented by the central light band to the first dark band.

Topic 2

mirror equation:1/d_o+1/d_i=1/f, Maginfication equation: m=-d_i/d_o
Height and distance equation:h_o/h_i=d_o/d_i. Plane mirror makes virtual image, same size. Only concave mirror can make real image. Characteristics about the concave's mirror:
1. virtue, upright, enlarger (In f, Images behind the mirror)
2. real, inverted, reduced (Beyond 2f, images between 2f and f.
3. Real, inverted, enlarged (Between f and 2f. Images behind 2f).
4. on 2f, real inverted, on 2f. 5. on f, no image produced. Convex mirror can make a upright, reduced, virtual images. Increase the focal length distance, increase the size of image.

Topic 3

The charged particles forces decrease one forth if distance increase by a factor of two. Tripled: factor of 9 etc. Fe=K_q1q2/d². K=9.0×10⁹. q1= Charge of first object, q2= Charge of second object. d= Distance between. This equation used on finding for the first object.
Equations: P=I square×R, P=IV, P=V square/ R. V=IR, I=V/R, R=V/I. When the electric field gets closer together, the electric field is directly proportional to the density of electric field lines and it is strong. Electric load: convert electrical energy to another form. Short, thick, cold copper wire conducts mosw. Voltmeter ad in parallel, ammeter in series. An electron moves in electric field, moves to higher potential because the charge is negative, only a single electric-field lines can exist at any given point in space.
Series: I=I₁=I₂, V=V₁+V₂, R=R₁+R₂+R₃.
Parrallel: I=I₁+I₂, V=V₁=V₂, 1/R=1/R₁+1/R₂.
When calculating combination circuit, first calculate the parallel part to in series resistance.

Topic 4

Four fundamental forces: Electromagnetic, gravity, strong nuclear, nuclear forces. Radio signal effective: high amplitude, low frequency. When a charge acclerates. It creates radio waves. Function of a resistor: Increase the strength of incoming signal. Strong nuclear force holding neutrons and protons together, magnetic fields used to accelerate the particle beams. Quantum computers: superposition. Boson, baryon (proton), quark, lepton (eletron).