CP12 Particle model part 1

What is the equation for density?

• Density = mass x volume

• Density = weight x volume

• Density = volume / mass

• Density = mass / volume

True or False: The tomato in the image is more dense than water

• True

• False

True or False: More dense things tend have more particles closer together.

• True

• False

Which of these is false about solids

• Particles move about fixed positions

• Solids can easily change shape

• Solids have fixed volumes

• Solids cannot flow

Carbon dioxide and iodine can sublimate. What does this mean?

• It is only a gas

• It can go straight from solid to gas without becoming a liquid

• It is only a solid

• It can be all three states at the same time.

Which states allow easy flow of particles

• Gas and Solid
• Gas and Liquid
• Solid and Liquid
• Gas only

Adding HEAT to matter causes its particles to:

• move faster and farther apart
• Move slower and farther apart
• Move faster and closer together
• Move slower and closer together

Which is true of liquids?

• Particles arranged in an ordered manner

• Particles are not touching one another.

• Particles are quite closely packed

• Particles can vibrate but not move around

A cube of metal has side 2 cm. It weighs 10g. Find its density.

• 5 g / cm³

• 20 g / cm³

• 0.2 g / cm³

• 1.25 g / cm³

Jack has a rock. The rock has a mass of 14g and a volume of 2cm³. What is the density of the rock?

• 7 mL
• 7 g/cm³
• 28 g/cm³
• 1/7 g/cm³

Tags

CCSS.HSG.MG.A.2