B. The particulate nature of matter: 204 IB Physics HL practice questions

The current in a resistor is measured as $2.00 \text{ A} \pm 0.02 \text{ A}$. Which of the following correctly identifies the absolute uncertainty and the percentage uncertainty in the current?

The specific latent heat is the energy required to change the phase of

The ratio of the diameter of an atom to the diameter of its nucleus is:

The internal energy of a solid substance is equal to the

An ideal ammeter is used to measure the current in a resistor. Which of the following gives the resistance of an ideal ammeter and the way it is connected to the resistor?[1]

The binary equivalent of the number 12 is

Gases in the atmosphere are compounds of $^{12}_6\text{C}$, $^{1}_1\text{H}$, $^{16}_8\text{O}$ and $^{14}_7\text{N}$.

Four of these gases are $\text{CO}_2$, $\text{N}_2\text{O}$, $\text{CH}_4$ and $\text{H}_2\text{O}$. A pure sample of each gas is produced. Each sample has the same volume, pressure, and temperature.

Which sample has the smallest mass?

Which of the following is the most likely cause of the enhanced greenhouse effect?

Object P has a mass $m_P$ and specific heat capacity $c_P$. Object Q has a mass $m_Q$ and specific heat capacity $c_Q$. The temperature of each object increases by the same amount. Which of the following gives the ratio

$$\frac{\text{thermal energy transferred to object P}}{\text{thermal energy transferred to object Q}}?$$

What is the approximate percentage of the world's energy needs that are provided by renewable energy sources?

The temperature of an object is changed from $\theta_1$ °C to $\theta_2$ °C. What is the change in temperature measured in kelvin?

For the five-bit binary number 10110, which of the following correctly identifies the least-significant bit and the equivalent decimal number?

What is the equivalent binary number to the decimal number 7?

Which of the following is a derived unit?[1]

For a fixed mass of an ideal gas the pressure is proportional to...