chapter 1 (IGCSE Chemistry)

The drops of water that appear on the outside of a glass of cold juice on a warm day are an example of?

• sublimation

• condensation

• evaporation

• deposition

Tags

NGSS.MS-ESS2-4

In a solid, the particles

• vibrate in place

• slide past one another

• fly around in all directions

• do not move

A gas

• has a definite shape but no definite volume

• has a definite volume but no definite shape

• has fast-moving particles and a definite shape

• has fast-moving particles and no definite volume

Tags

NGSS.MS-PS1-4

When thermal energy is increased in a liquid, the particles speed up causing:

• sublimation

• vaporization

• deposition

• freezing

Tags

NGSS.MS-PS1-4

At higher temperatures

• particles in an object have less kinetic energy, so they move more slowly

• particles in an object expand because kinetic energy increases

• particles in an object move slower because kinetic energy increases

• particles in an object expand because kinetic energy decreases

Tags

NGSS.MS-PS1-4

Balloons can be twisted into shapes because

• the force exerted changes the number of particles

• the volume of a gas is constant

• particles of gas can be compressed

• the force exerted increases the volume of gas

Tags

NGSS.MS-PS2-2

Which of the following occurs when a liquid becomes a gas?

• the attractive forces between particles increases

• the attractive forces between particles are broken

• the particles move closer together

• the particles temporarily stop moving

Tags

NGSS.MS-PS1-4

What term describes a solid changing to a liquid?

• Deposition
• Sublimation
• Freezing 
• Melting

Tags

NGSS.MS-PS1-4

How is a solid defined?

• Indefinite shape and indefinite volume
• Definite shape and definite volume
• Found in the stars
• Definite volume, indefinite shape

How is a gas defined?

• Indefinite shape, indefinite volume
• Definite shape, definite volume
• Found in stars
• Definite volume, indefinite shape