countrygirl
New member
1. As they move through space, the vibrating electrical and magnetic fields of a light wave must move perpendicular to each other.
true or false?
2. Doubling the temperature of a black body will double the total energy it radiates.
true or false?
3. Both sound waves and electromagnetic radiation
a. can move through space without a medium
b. require a medium to move through space
c. transfer energy
d. are tranverse waves.
e. travel at the speed of light
4. What does the phenomenon of diffraction demonstrate?
a. the process of ionization
b. the quantization of atomic orbitals
c. the particle nature of the photon
d. the polarization of light waves
e. the wave nature of light
5. Electromagnetic radiation
a. can behave both as a wave and as a particle
b. has only the properties of waves.
c. can only travel in a dense medium
d. has nothing in common with radio waves
e. is the same as a sound wave
6. Colors appear different to us because of their photons' different:
a. polarization
b. amplitudes
c. frequencies
d. speeds
e. magnetic fields.
7. The total energy radiated by a blackbody depends on
a. the cube root of its temperature
b. the square of its temperature
c. the cube of its temperature.
d. the square root of its temperature
e. the fourth power of its temperature.
8. Very low temperature molecular clouds emit most of their light in which part of the electromagnetic spectrum?
a. the x-ray
b. the infrared
c. the ultraviolet
d. the radio
e. the visible
9. Stars like our Sun emit most of their light in which part of the electromagnetic spectrum?
a. the radio
b. the x-ray
c. the infrared
d. the visible
e. the ultraviolet
10. The Doppler Effect is a phenomenon that allows one to measure an object's
a. tangential motion.
b. chemical composition
c. temperature
d. radius.
e. radial motion
I know that is a lot of questions.. those are all I have left from aboout 60 questions! I cant find the answers in my book or online so please help!
true or false?
2. Doubling the temperature of a black body will double the total energy it radiates.
true or false?
3. Both sound waves and electromagnetic radiation
a. can move through space without a medium
b. require a medium to move through space
c. transfer energy
d. are tranverse waves.
e. travel at the speed of light
4. What does the phenomenon of diffraction demonstrate?
a. the process of ionization
b. the quantization of atomic orbitals
c. the particle nature of the photon
d. the polarization of light waves
e. the wave nature of light
5. Electromagnetic radiation
a. can behave both as a wave and as a particle
b. has only the properties of waves.
c. can only travel in a dense medium
d. has nothing in common with radio waves
e. is the same as a sound wave
6. Colors appear different to us because of their photons' different:
a. polarization
b. amplitudes
c. frequencies
d. speeds
e. magnetic fields.
7. The total energy radiated by a blackbody depends on
a. the cube root of its temperature
b. the square of its temperature
c. the cube of its temperature.
d. the square root of its temperature
e. the fourth power of its temperature.
8. Very low temperature molecular clouds emit most of their light in which part of the electromagnetic spectrum?
a. the x-ray
b. the infrared
c. the ultraviolet
d. the radio
e. the visible
9. Stars like our Sun emit most of their light in which part of the electromagnetic spectrum?
a. the radio
b. the x-ray
c. the infrared
d. the visible
e. the ultraviolet
10. The Doppler Effect is a phenomenon that allows one to measure an object's
a. tangential motion.
b. chemical composition
c. temperature
d. radius.
e. radial motion
I know that is a lot of questions.. those are all I have left from aboout 60 questions! I cant find the answers in my book or online so please help!