Take this Quiz: GCSE Physics: The Particle Model | Zestly

Question 1

A solid metal block has a mass of 450 g and a volume of 50 cm³. What is the density of this metal block in g/cm³?

Accepted Answer

9.0 g/cm³

Question 2

Which of the following statements accurately describe the particle arrangement in a gas compared to a solid?

Accepted Answer

Particles in a gas are far apart and move randomly at high speeds.

Question 3

When 2 kg of water is heated from 20°C to 80°C, how much energy is transferred? Use the specific heat capacity of water $c = 4200 	ext{ J/kg}^{\circ}	ext{C}$.

Accepted Answer

504,000 J

Question 4

Which of the following statements about internal energy and changes of state are correct?

Answer

Internal energy is the sum of the kinetic and potential energy of all particles in a system.

Answer

During a change of state, the temperature remains constant while internal energy changes.

Answer

Heating a substance always increases its temperature, even during a phase change.

Answer

Potential energy of particles decreases when a solid melts into a liquid.

Question 5

A sealed container of gas is heated, increasing the temperature from 300 K to 600 K. Assuming the volume remains constant, what happens to the pressure of the gas?

Answer

The pressure decreases by half.

Answer

The pressure remains the same.

Answer

The pressure doubles.

Answer

The pressure quadruples.