Lower Secondary: Kinetic Model of Matter

There are _ states of matter.

(a)  

Which state does this picture represent?

• Solid

• Liquid

• Gas

• Plasma

Which state of matter is shown in the image?

• Solid

• Liquid

• Gas

• Thermal Energy

Which of the following is NOT a part of the Kinetic Model of Matter?

• All matter is made up of tiny particles.

• Occasionally, particles stop moving.

• Particles are always in continuous and random motion.

• The type of movement of particles depends on the amount of energy.

When the temperature of matter decreases the particles ...

• speed up and move farther apart
• speed up and move closer together
• slow down and move farther apart
• slow down and move closer together

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Check all properties of the solid state of matter.

• Fixed shape and volume

• No fixed shape and volume

• Low density

• High density

• Incompressible

Solids have high densities because

• particles are always in continuous and random motion.

• particles are bigger than those in liquid and gas.

• particles are closely packed together.

• particles are smaller than those in liquid and gas.

List the order of increasing density of the three states

_ , _ , _

(a)  

In which state do the particles have the strongest attractive force amongst them.

• Solid

• Liquid

• Gas

In which state do the particles have the weakest attractive force amongst them.

• Solid

• Liquid

• Gas