WEEK 2 Assignment

The tool used to measure the mass of a substance or object is a ______________.

• balance
• graduated cylinder
• ruler
• thermometer

Which lab tool might you use to measure the volume of a liquid?

• electric scale
• bunsen burner
• test tube
• graduated cylinder

What is the volume of Object X?

• 10.0 cm³
• 15.0 cm³
• 20.0 cm³
• 25.0 cm³

What is the volume of 150 grams of lead if it has a density of 11.3 g/cm³?

• 13.3 g
• 13.3 cm³
• .075 g
• 1695 cm³

Why do some substances float on water?

• they are warmer than water
• they are cooler than water
• they are more dense than water
• they are less dense than water

Tags

NGSS.MS-PS2-4

A mechanical pencil has the density of 3.000 g/cm³.  The volume of the pencil is 15.8 cubic centimeters.  What is the mass of the pencil?

• 47.4 g
• 50 g
• 0.190  g
• 5.27 g

Tags

CCSS.7.RP.A.3

Which of the following will float on water?

• Rubber 1.34 g/cm³

• Corn Oil 0.93 g/cm³

• Glycerine 1.26 g/cm³

• Steel 7.81 g/cm³

If an object of 3kg has a density of 19.5 kg/m³ and I half this object into two equal parts. What will the density be?

• 19.5 g/cm³

• 2.45 kg/m³

• 8. 75 kg/m³

• 19.5 kg/m³

Why do ice cubes float in a  glass of water?

• the ice cubes are more dense than the water
• the water is more dense than the ice cubes
• the water is more dense than the glass
• the ice is more dense than the glass

Helium balloons rise on earth because

• helium is less dense than air
• helium is more dense than air
• helium is cooler than air
• helium is warmer than air