Millikan Oil Drop Experiment Quiz

Who conducted the oil drop experiment to determine the charge of an electron?

• Ernest Rutherford

• Robert Millikan

• Niels Bohr

• Albert Einstein

What was the primary purpose of the Millikan oil drop experiment?

• To determine the charge of an electron

• To study the behavior of cathode rays

• To discover the electron

• To measure the mass of an electron

What device was used to introduce oil droplets into the apparatus?

• A syringe

• An atomizer

• A pipette

• A funnel

What role did ionizing radiation play in the experiment?

• It heated the oil droplets

• It created electrons for the oil droplets to collect

• It illuminated the oil droplets

• It cooled the apparatus

How could the freefall of oil droplets be stopped in the experiment?

• By increasing the temperature

• By changing the density of the oil

• By applying a magnetic field

• By adjusting the voltage across the plates

What was measured to calculate the charge of each oil drop?

• The color of the droplets

• The temperature of the apparatus

• The voltage required to stop the freefall

• The speed of the droplets

What did Millikan calculate using the radii and density of the oil droplets?

• The temperature of the droplets

• The charge of the droplets

• The mass of the droplets

• The speed of the droplets

What reasoning did Millikan use to determine the charge of a single electron?

• Each drop contains a fractional number of electrons

• Each drop contains a whole number of electrons

• Each drop has a unique charge

• Each drop is identical in size

What was the least common multiple of the charges of the oil drops found by Millikan?

• 1.6 * 10^-19 coulombs

• 1.6 * 10^-9 coulombs

• 1.6 * 10^19 coulombs

• 1.6 * 10^9 coulombs

What is the charge of a single electron also known as?

• Atomic charge

• Elementary charge

• Neutron charge

• Proton charge