U1 CH3 Density & Pressure

If you spread a force over a larger area, pressure will

• increase.

• decrease.

• remain the same

An irregularly shaped object is dropped into a graduated cylinder containing 27 mL of water. After the object is added, the water in the cylinder measures 40 mL. What is the volume of the irregular object?

• 13 mL

• 67 mL

• 40 mL

• 26 mL

Tags

NGSS.MS-PS1-2

An irregularly shaped object is dropped into a graduated cylinder containing 50 mL of water. After the object is added, the water in the cylinder measures 70 mL. What is the volume of the irregular object?

• 15 mL

• 76 mL

• 20 mL

• 29 mL

When you dissolve powder into a liquid, it

• changes the volume and the density.

• changes neither the volume nor the density.

• changes the volume, but the density stays the same.

• changes the density, but the volume stays the same.

Tags

NGSS.MS-PS1-2

With one exception, solids, liquids and gasses ______________ as they get warmer and _______________ when they get colder.

• expand, contract

• contract, expand

• stay the same, contract

• contract, stay the same

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

What happens to the density of air when its temperature is decreased and it is in a rigid container?

• It is reduced.

• It is increased.

• It stays the same.

• We need more information.

• Both B and D.

Tags

NGSS.MS-PS1-4

As the temperature of water drops from 4°C to 0°C, its volume increases, so its density...

• decreases.

• increases.

• stays the same.

Tags

NGSS.MS-PS1-4

Lakes freeze from

• the middle out.

• the top down.

• the bottom up.

• various ways, depending upon the humidity in the air

The weight of an object is...

• mass times gravity.

• a force acting on what is beneath it.

• important in determining pressure.

• All of the above.

Tags

NGSS.MS-PS2-4

1. ____________ will remain the same whether on Earth or its moon.

• gravity

• mass

• weight

• volume