GRADE 7

In a solid, particles ________________

• move freely

• slide past one another

• have large amount of energy

• do not have much room to move

How do particles act in a liquid?

• Every particle stays in one spot.

• Particles spread far apart from one another.

• Particles slide past one another

• Particles squeeze together to fit into small spaces.

Identify the particles.

• solid

• liquid

• gas

• none

Tags

NGSS.MS-PS1-4

How can we increase the gas pressure inside a sealed container?

• Increase the number of particles inside the container
• Increase the temperature
• Decrease the volume of the container
• All of these

If a hairspray can is heated, what can be expected of the pressure of the gas inside the can?

• The pressure will increase

• The pressure will decrease

• The pressure will remain constant

• The pressure will equalize

Tags

NGSS.MS-PS1-4

In what direction(s) does air exert pressure?

• everywhere
• no where
• there is no pressure
• downward

Tags

NGSS.MS-ESS2-5

The pressure inside the balloon will:

• Decrease

• Increase

• Remain the same

• Not enough information to formulate an answer

A bar of copper has a mass of 216g and a volume of 24 cm3. What is the density of copper?

• 9g/cm3

• 5184g/cm3

• .11g/cm3

• 322mL

Tags

NGSS.MS-PS1-2

What two types of measurements make up DENSITY? 

• Mass and Volume
• Temperature and Mass
• Grams and Centimeters
• Volume and Weight

Tags

CCSS.HSG.MG.A.2

Calculate the density of the object below if it has a mass of 3g. (Hint: you need to find the volume.)

• 60 g/cm³

• 3 g/cm³

• 20 g/cm³

• 0.05 g/cm³