Physics Modern Physics Level: High School
Atom
The highest energy level in an atom is itsa) ionization level
b) emission level
c) absorption level
d) photon level
e) ground state
Physics Modern Physics Level: High School
Duel nature
The fact that a particly cannot be precisely localized is the ?a) photoelectric effect
b) uncertainty principle
c) principle of a hologram
d) principle of a laser
Physics Modern Physics Level: High School
Atom
An excited atom gains energy by ?a) emitting a photon
b) absorbing a photon
c) undergoing a photoelectric effect
d) increasing its de Broglie wavelength
e) the uncertainty principle
Physics Ray Optics Level: High School
If the image height is 10 cm and the objects height is 1 cm , then the magnification is ?a) 10 times
b) 2 times
c) 100 times
d) 0.1 times
e) None of the above
Physics Ray Optics Level: High School
You see colors in a rainbow. why ?a) interference
b) diffraction
c) dispersion
d) refraction
e) polarization
Physics Ray Optics Level: High School
Light spreads out when it passes through a narrow slit because of ?a) interference
b) diffraction
c) specular reflection
d) diffuse reflection
e) polarization
Physics Ray Optics Level: High School
The colors of objects we see by reflected light are due to what ?a) interference
b) subtractive mixing
c) specular reflection
d) diffuse reflection
e) polarization
Physics Magnetism,Magnetic Effects Of Current Level: High School
A magnetic field will be produced at some point in space if the electric field at that point .a) gets stronger
b) gets weaker
c) changes direction
d) all of the above
Physics Heat & Thermodynamics Level: High School
A star with the surface temperature of T = 10,000 K is going to be detected as more ____ than a star with T = 5,000 K located at the same distance from us .a) reddish and less luminous
b) reddish and more
c) bluish and more luminous
d) bluish and less luminous
e) none of the above
Physics Electromagnetic Waves Level: High School
Which one of the following is not a common use of microwave ?a) cooking
b) radar
c) medical imaging
d) communication
Physics Electromagnetic Waves Level: High School
Type of EM waves having the highest frequency in this list is .a) ultraviolet
b) infrared
c) x-rays
d) microwave
e) gamma rays
Physics Electromagnetic Waves Level: High School
The greenhouse effect occurs because .a) Low frequency EM waves are reflected from the atmosphere .
b) High frequency EM waves are reflected from the atmosphere .
c) The ozone layer absorbs ultraviolet light .
d) Carbon dioxide in the atmosphere absorbs IR emission re-radiated from the earth’s .
e) None of the above .
Physics Current Electricity Level: High School
Which one of the following notes you can safely ignore ?a) Danger! Ten thousand volts !
b) Danger! Ten thousand Ohms !
c) Danger! Ten thousand Ohms !
d) None of the above .
e) All of the above .
Physics Current Electricity Level: High School
An automobile headlight and a dashboard light use the same voltage , but the power input to the headlight is much larger because .a) Its resistance is lower .
b) The current in it is larger .
c) It uses energy faster .
d) All of the above .
Physics Electrostatics Level: High School
Two charged bodies separated by a distance d exert an electrical force on each other . The distance d is increased 4 times . The electrical on each body now isa) ¼ of the initial force .
b) 1/16 of the initial force .
c) The same.
d) Twice greater .
e) None of the above .
