Y7 Particle topic test

Match the following descriptions with the movement of particles in air.

• Movement of particles in a gas

• The particles only move around when the air is hot

• Movement of particles in a solid

• The particles vibrate in fixed positions

• Movement of particles in warm air

• The particles move around quickly

Choose the statement that describes the movement of the particles in a brick wall.

• The particles do not move at all

• The particles vibrate

• The particles only move when the wall is hot

Frozen water (ice) feels solid but liquid water feels runny. Choose the statement that best explains this.

• Particles in ice are more strongly linked together

• Particles in ice are harder than particles in water

• Ice is solid particles but water is liquid particles

The boiling point is the temperature that a substance changes from a liquid to a

• Gas

• Solid

• Liquid

• Particle

Choose the volume of water shown in the image below.

• 15 cm³

• 18 cm³

• 17 cm³

When liquid water is heated it becomes a colourless gas. Do the water particles change? Choose the best answer.

• Yes, liquid particles turn into gas particles

• Yes, water particles turn into hydrogen gas particles

• No, they are the same particles of water

Choose the statement that explains why the gas was compressed more than the liquid.

• The particles in gases are more spread out than the particles in liquids.

• The particles in gases have less mass than the particles in liquids.

• The particles in gases are softer than the particles in liquids.

In a bathroom, steam from the shower condensed on the glass window. This happened because the particles in steam (a)  

• lost energy.
• gained energy.
• have less energy than the glass win

The temperature at which sodium is liquid is (a)   .

• 50°C
• 500°C
• 1000°C

A basketball was left outside in the hot sun. The pressure inside the basketball increases because the gas particles inside the basketball gain energy and...

• collide with each other more.

• collide with the wall inside the basketball more.

• collide with air particles outside the basketball more.