Mastering Scientific Notation: Division & Exponents Quiz

A scientist measures the mass of a small particle as 3.2 x 10^-27 kg. If she has 5.0 x 10^3 particles, what is the total mass in scientific notation?

• 2.5 x 10^-23 kg

• 1.0 x 10^-22 kg

• 4.0 x 10^-24 kg

• 1.6 x 10^-23 kg

A bacteria culture grows at a rate of 2.5 x 10^6 bacteria per hour. How many bacteria will there be after 4 hours? Express your answer in scientific notation.

• 1.0 x 10^7

• 5.0 x 10^6

• 1.0 x 10^8

• 2.5 x 10^6

The distance from Earth to a nearby star is approximately 4.2 x 10^16 meters. If a spaceship travels at a speed of 1.5 x 10^8 meters per hour, how long will it take to reach the star in hours?

• 1.2 x 10^8 hours

• 3.5 x 10^7 hours

• 2.8 x 10^8 hours

• 5.0 x 10^9 hours

A car can travel 6.0 x 10^2 kilometers on 1.5 x 10^1 liters of fuel. How many kilometers can it travel on 1 liter of fuel?

• 40 kilometers

• 20 kilometers

• 30 kilometers

• 50 kilometers

A chemical reaction produces 8.0 x 10^4 grams of a substance. If the substance is divided into packets of 2.0 x 10^2 grams each, how many packets can be made?

• 600

• 200

• 400

• 800

The speed of light is approximately 3.0 x 10^8 meters per second. How far does light travel in 5.0 x 10^2 seconds?

• 2.5 x 10^{11} meters

• 1.0 x 10^{10} meters

• 4.0 x 10^{11} meters

• 1.5 x 10^{11} meters

A researcher has a sample of 1.2 x 10^5 cells. If she divides the sample into groups of 3.0 x 10^2 cells, how many groups does she have?

• 350

• 300

• 500

• 400

The volume of a small droplet of water is about 2.5 x 10^-5 liters. If you have 4.0 x 10^3 droplets, what is the total volume in liters?

• 1.0 x 10^0 liters

• 4.0 x 10^-1 liters

• 2.5 x 10^-2 liters

• 1.0 x 10^-1 liters

A satellite orbits Earth at an altitude of 3.6 x 10^7 meters. If it travels at a speed of 7.2 x 10^3 meters per minute, how long does it take to complete one orbit in minutes?

• 37.5

• 50

• 60

• 25

A factory produces 5.0 x 10^4 toys in a day. If the factory operates for 2.0 x 10^3 days, how many toys does it produce in total?

• 1.0 x 10^8

• 2.0 x 10^6

• 1.5 x 10^8

• 5.0 x 10^7