Phys 165 Module 10 Exam
1. What kind of variable is the charge of a proton?
A) Quantized variable
B) Continuous variable
C) Continuous and quantized
D) Neither continuous nor quantized
Answer B) Continuous variable
2. Which of the following is a continuous variable ?
A) Number of students in a class
B) Time spent exercising per week
C) Number of M&Ms consumed
D) You Answered Age (in years)
Answer B) Time spent exercising per week
- speed of a car
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,3. Which of the following is a quantized variable?
A) Velocity of a falling object
B) Position of a Truck
C) Speed of a sound wave
D) Energy of a Purple Photon
Answer Energy of a purple photon
The number of people attending a concert is a quantized variable. There is a smallest value - one person, and all possible
values are integer multiples of that smallest value.
4. The discovery of the electron is credited to which experiment?
A) The Rutherford Gold Foil Experiment
B) J. J. Thompson's Cathode Ray Tube Experiment
C) The Compton Scattering Experiment
D) The Millikan Oil Drop Experiment
Answer B) JJ Thompson's Cathode Ray Tube Experiment
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, 5. True or False
Max Planck proposed that a blackbody is made up of tiny oscillators.
Answer True
- He proposed that a blackbody is made up of tiny oscillators (atoms or groups of atoms) and that these oscillators can
only give ott energy when their own energy changes by certain amounts.
- Frequency of their vibration depends on the temperature of black body. More the temperature of black body, more
the frequency of oscillation of tiny oscillators.
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1. What kind of variable is the charge of a proton?
A) Quantized variable
B) Continuous variable
C) Continuous and quantized
D) Neither continuous nor quantized
Answer B) Continuous variable
2. Which of the following is a continuous variable ?
A) Number of students in a class
B) Time spent exercising per week
C) Number of M&Ms consumed
D) You Answered Age (in years)
Answer B) Time spent exercising per week
- speed of a car
1/
19
,3. Which of the following is a quantized variable?
A) Velocity of a falling object
B) Position of a Truck
C) Speed of a sound wave
D) Energy of a Purple Photon
Answer Energy of a purple photon
The number of people attending a concert is a quantized variable. There is a smallest value - one person, and all possible
values are integer multiples of that smallest value.
4. The discovery of the electron is credited to which experiment?
A) The Rutherford Gold Foil Experiment
B) J. J. Thompson's Cathode Ray Tube Experiment
C) The Compton Scattering Experiment
D) The Millikan Oil Drop Experiment
Answer B) JJ Thompson's Cathode Ray Tube Experiment
2/
19
, 5. True or False
Max Planck proposed that a blackbody is made up of tiny oscillators.
Answer True
- He proposed that a blackbody is made up of tiny oscillators (atoms or groups of atoms) and that these oscillators can
only give ott energy when their own energy changes by certain amounts.
- Frequency of their vibration depends on the temperature of black body. More the temperature of black body, more
the frequency of oscillation of tiny oscillators.
3/
19
