Force, Motion, and Energy Review

Which of the following is the correct definition of density?

• The amount of stuff in an object

• The amount of space an object takes up

• A measure of the force of gravity on an object

• The amount of matter (mass) packed into a space (object)

What is the density of an object if it has a mass of 6g and a volume of 3cm³? (Hint: Density = mass/volume)

• 6 g/cm³

• 3 g/cm³

• 2 g/cm³

• 1/3 g/cm³

Does 1cup or 6cups of water have a higher density?

• 1 cup

• 6 cups

• They have the same density

You calculated the density of an unknown substance to be 7.8g/cm³. According to the chart, which of the substances doe you most likely have?

• Zinc

• Copper

• Tin

• Iron

Tags

NGSS.MS-PS1-2

What is the density of an object with a mass of 3g and a volume of 1cm³? (Hint: Density = mass / volume)

• 1/3 g/cm³

• 3 g/cm

• 3 g/cm³

Which substance is the most dense in this picture?

• Vegetable Oil

• Dish Soap

• Honey

• Corn Syrup

Tags

NGSS.MS-PS1-2

Which ones can be units for density?

(Multiple responses)

• g/ mL

• g

What is the density of the sphere, if its mass is 50 g?

How do you fine average speed?

• distance divided by density

• multiply volume and mass

• distance divided by time

• time divided by density

A biker travels 25 miles in 2 hours. What is the average speed in miles per hour?

• 50 mph

• 20 mph

• 12.5 mph

• 20 km/h