Nuclear physics: decay, half-life and binding energy

Question 1 of 10

Einstein's mass–energy relation is

Question 2 of 10

How much energy is released when 0.01 kg of mass is converted to energy? (c = 3 × 10⁸ m/s)

Question 3 of 10

A nucleus with more nucleons always has a higher binding energy per nucleon.

Question 4 of 10

A Geiger counter must be corrected for background radiation.

Question 5 of 10

Nuclear fusion requires very high temperatures.

Question 6 of 10

How much energy is released when 0.002 kg of mass is converted to energy? (c = 3 × 10⁸ m/s)

Question 7 of 10

A sample contains 4000 radioactive nuclei. After 3 half-lives, the number remaining is ___.

Question 8 of 10

In a nuclear reactor, the moderator (such as graphite or water)

Question 9 of 10

Describe the main parts of a nuclear power reactor and the function of each.

Question 10 of 10

The count rate of a source falls from 640 to 40 counts/min in 60 minutes. Find its half-life.