E. Nuclear and quantum physics: 342 IB Physics HL practice questions

Which of the following is most likely to increase the rate of global warming?

What is the best estimate for the diameter of a helium nucleus?[1]

What is the value of the binary number 11001 in decimal notation?

The binary equivalent of the decimal number 27 is

A simple model of the hydrogen atom suggests that the electron orbits the proton. What is the force that keeps the electron in orbit?[1]

What is the definition of the unified atomic mass unit?

Which of the following is a correct list of particles upon which the strong nuclear force may act?

In a particular atom, the nucleon number is the total number of

Which of the following provides evidence for the existence of atomic energy levels?[1]

What is the decimal equivalent to the binary number 10111?

What are three fundamental forces listed in decreasing order of strength?

[1]

In the Bohr model for the hydrogen atom, what is $\frac{\text{angular momentum of first excited state}}{\text{angular momentum of ground state}}$?

How many different states can be represented by a 4-bit binary number?[1]

What is the 5-bit binary form of the decimal number 23?

An ion X contains the following particles:

• 53 protons

• 89 neutrons

• 54 electrons

What is the nuclear notation for X?