Equivalence Principle

Mr. Anderson explains the equivalence principle, highlighting the equivalence of inertial and gravitational mass. He discusses historical contributions by Galileo, Newton, and Einstein, and demonstrates experiments to measure mass using a ruler and balance. The video concludes with a discussion on Einstein's theory of relativity and its connection to the equivalence principle.

What are the two types of mass discussed in the equivalence principle?

• Inertial and gravitational mass

• Static and dynamic mass

• Linear and rotational mass

• Kinetic and potential mass

Which historical figure first noted the equivalence of inertial and gravitational mass?

• Galileo Galilei

• Niels Bohr

• Isaac Newton

• Albert Einstein

In the experiment with the ruler, what effect does adding mass have on the oscillation time?

• It increases the oscillation time

• It decreases the oscillation time

• It makes the oscillation time unpredictable

• It has no effect on the oscillation time

What was the observed relationship between mass and oscillation period in the experiment?

• Exponential relationship

• No relationship

• Linear relationship

• Non-linear relationship

How was the inertial mass of a penny estimated in the experiment?

• By using a balance scale

• By measuring the oscillation period and using a graph

• By using a pendulum

• By calculating the gravitational force

What method was used to compare the gravitational mass of a penny?

• Using a digital scale

• Using a spring scale

• Using a balance with a known mass

• Using a pendulum

Which scientist's work led to the development of the theory of relativity based on the equivalence principle?

• Albert Einstein

• James Clerk Maxwell

• Isaac Newton

• Galileo Galilei