Millikan's Oil Drop

Quiz
•
Physics
•
12th Grade
•
Hard
+1
Standards-aligned
Charles Martinez
FREE Resource
17 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What was the primary objective of Millikan's oil drop experiment?
To determine the speed of an electron
To calculate the mass of an electron
To measure the charge of an electron
To observe the behavior of oil droplets in a vacuum
2.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Why were oil droplets used in Millikan's experiment?
2 correct answers
Because they evaporate quickly
Because they can be easily charged
Because they are visible under a microscope
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What was the significance of Millikan's oil drop experiment on atomic theory?
It disproved the existence of atoms
It confirmed the quantization of electric charge
It showed that electrons have negligible mass
It proved that atoms are indivisible
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How did Millikan calculate the charge of an electron in his experiment?
By measuring the speed of falling oil droplets
By observing the behavior of oil droplets in a magnetic field
By balancing the gravitational and electric forces acting on the oil droplets
By counting the number of electrons in an oil droplet
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What role does the gravitational force play in Millikan's oil drop experiment?
It is negligible and can be ignored
It helps to charge the oil droplets
It acts downward, pulling the oil droplets towards the earth
It is used to calculate the speed of electrons
Tags
NGSS.HS-PS2-4
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How is the mass of an electron calculated using the data from Millikan's oil drop experiment?
By dividing the charge of an electron by its speed
By using the charge-to-mass ratio of an electron
By measuring the volume of an oil droplet
It cannot be directly calculated from this experiment
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why is the charge of an electron considered quantized as demonstrated by Millikan's experiment?
Because it can take on any value
Because it only takes on discrete values
Because it is directly proportional to the mass of an electron
Because it varies with the size of the oil droplet
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