Honors Physics Final Review

An image that appears to form within the reflective surface is a ________ image?

ans: virtualThe reference line perpendicular to the reflective surface is called the ___

ans: normalHow is a plane mirror and a convex mirror alike?

ans: both form virtual images only

As the wavelength increases, the frequency will ______________.

ans: decreasesWhat is the speed of all electromagnetic radiation?

ans: 3 x 108 m/sWhich has a greater frequency: Red light or Blue light:

ans: Blue light

An object is placed 5 cm in front of a plane mirror, where will the image appear?

ans: 5 cm into the reflective surfaceWhere is an object placed in front of a concave mirror for the image to seem to disappear?

ans: at FWhere is the object place in front of a concave mirror for the image to be the same size?

ans: at C

What type of wave is a series of compressions and rarefraction?

ans: longitudualA mechanical wave has a wavelength of 40 cm and a frequency of 32 Hz. What is the speed of the wave?

ans: 1280 cm/sWhat is the wavelength of a light wave with a frequency of 4.7 x 1014 Hz in nm?

ans: 638 nm

What is the color of the light at 638 nm?ans reddish orange

Rank high frequency to low: UV, FM, yellowans: UV yellow FM

What is the equation for magnification?ans: M = –q/p , M = -di/do

What is q and p above?ans q = focal length p = distance to object

A beam of light travels from a medium with n= 1.33 to a index of n = 1.00. Will the beam bend toward or away from the normal?

ans: awayWhich medium is denser, n = 1.66 or n = 1.923

ans: n= 1.923What is the index of refraction for a light that travels at 2.26 x 108 m/s?

ans: 1.33

Light travels from the air at an angle of incident of 12o into a pool of pure water (n = 1.33). Will the light bend away or toward the normal?

ans: toward the normal What is the angle of refraction for the above?

ans: 9o

The angle of incident when the refracted light is bend parallel to the medium interface is:

ans: critical angle

When will internal refraction occur: 1) when light travels from air to glass or 2) when light travels from glass to air?

ans: greater dense to less dense, #2What is the equation for the critical angle?

ans: θc = nr / ni for ni > nr

Which would have a smaller angle of incident before the critical angle is reached: flint glass or diamond

ans: diamond: greater density = smaller critical angle

In which medium does light travel slower: water or glass?

ans: glass b/c denserWhat two things MUST be true for constructive interference to occur?

ans; in-phase and same wavelengthWhat type of wave interaction is described: Two fronts approach each other. One is displaced by 10 cm and the other displaced by 8 cm. At the point of crossover the displacement is 2 cm.

ans: destructive interference

After the interaction from above is complete, what is the displacement of the two waves?

ans: 10 cm and 8 cmA first order line appears 13.2 mm from the central bright line from two slits 1.9 x 10-5 m apart. What is the λ with a screen 0.6 m

ans 418 nm

What is the SI unit for electrical charge?ans: coulomb, c

What will happen to the force between two charged bodies one + the other - as they are brought closer together?

ans: force will increaseSurface charges can be induced on insulators by __________?

ans: polarization

The process of charging a conductor by bring it near another charged object and grounding the conductor is called:

ans: inductionThe force acting between two charged bodies is directly proportional to the size of the bodies and inverse to the distance squared between the bodies is what Law:

ans: Coulombs LawThe SI unit of current is

ans: ampere’ , A

The SI unit of potential difference is ans: volts , V

The SI unit for power is?ans : Watt, W

What is the equation for Ohm’s Law?ans Ω = V / I

What is the equation that define power?ans: P = V2 / Ω

What is the potential difference of a battery with 3 cells at 1.5 v each arranged in parallel

ans: 1.5 vWhat is the potential difference in the above if the cells are arranged in series?

ans: 4.5 voltsThe amount of force exerted on a container is transmitted equally throughout that container is a description of :

ans: Pascal’s Principle

NOTE

•Read a parallel and series circuit•Calculate position to image and magnification.•Calculate electric force•Calculate power, current, voltage, resistance. (also from a circuit diagram)•Calculate magnetic force