Science Word Problems

A box measures 20 cm x 8 cm x 14 cm and has a mass of 226.8 g. What is the density of the block?

• 0.101 g/cm3

• 9.88 g/cm3

• 5.4 g/cm3

The piece of jewelry occupies a space of 76 mL. If the mass of the piece of jewelry is 122 grams, what is its density?

• 1.6 g/mL

• 0.62 g/mL

• 9272 g/mL

Gabriel sprinted down the hallway for a science project. He ran a total of 40 meters in 20 seconds. What was his average speed?

• 2 meters per second

• 20 meters per second

• 40 meters per second

• 10 meters for second

Tags

NGSS.MS-PS3-1

What is the speed of an object that travels 60 meters in 4 seconds?

• 240 m/s

• 15 m/s

• 0.067 m/s

• 15 mph

Tags

NGSS.MS-PS3-1

A car travels 150 kilometers in 3 hours. What is its average speed?

• 50 km/h

• 45 km/h

• 60 km/h

• 55 km/h

A metal cube has a side length of 5 cm and a mass of 250 grams. What is its density?

• 2 g/cm^3

• 1 g/cm^3

• 3 g/cm^3

• 4 g/cm^3

A solution contains 30 grams of salt dissolved in 200 mL of water. What is the concentration of the solution in g/mL?

• 0.15 g/mL

• 0.2 g/mL

• 0.1 g/mL

• 0.25 g/mL

A pendulum completes 20 oscillations in 5 seconds. What is its frequency?

• 4 Hz

• 5 Hz

• 3 Hz

• 6 Hz

A scientist measures the temperature of a substance as it changes from solid to liquid. What is this process called?

• Melting

• Freezing

• Evaporation

• Condensation

Tags

NGSS.MS-PS1-4

A light bulb uses 60 watts of power and operates for 5 hours. How much energy does it consume?

• 300 Wh

• 250 Wh

• 350 Wh

• 400 Wh