Mastering Scientific Notation: Multiply & Convert Challenges

A scientist measures the mass of a small particle as 3.5 x 10^-9 grams. If she has 4.2 x 10^3 particles, what is the total mass of all the particles in grams?

• 5.6 x 10^-6 grams

• 2.8 x 10^-4 grams

• 1.05 x 10^-5 grams

• 1.47 x 10^-5 grams

A car travels at a speed of 6.0 x 10^2 meters per minute. How far will it travel in 5.0 x 10^1 minutes?

• 2.5 x 10^4 meters

• 4.0 x 10^4 meters

• 3.0 x 10^4 meters

• 1.5 x 10^5 meters

The distance from Earth to a star is approximately 4.0 x 10^16 meters. If a spaceship travels at a speed of 2.0 x 10^7 meters per hour, how long will it take to reach the star in hours?

• 2.0 x 10^9 hours

• 5.0 x 10^10 hours

• 3.0 x 10^7 hours

• 1.0 x 10^8 hours

A factory produces 1.5 x 10^4 widgets per day. How many widgets does it produce in 2.0 x 10^2 days?

• 2.5 x 10^6

• 1.0 x 10^5

• 4.5 x 10^6

• 3.0 x 10^6

A researcher is studying bacteria that reproduce at a rate of 3.0 x 10^2 per hour. If the initial population is 2.0 x 10^3, how many bacteria will there be after 5 hours?

• 3.5 x 10^3

• 1.5 x 10^3

• 4.0 x 10^3

• 2.0 x 10^3

A satellite orbits the Earth at a height of 3.0 x 10^7 meters. If it travels at a speed of 1.5 x 10^4 meters per second, how far does it travel in 2.0 x 10^2 seconds?

• 2.0 x 10^6 meters

• 3.0 x 10^6 meters

• 4.5 x 10^6 meters

• 1.0 x 10^6 meters

The volume of a small container is 2.5 x 10^-3 cubic meters. If you have 4 containers, what is the total volume in cubic meters?

• 1.0 x 10^-2 cubic meters

• 1.5 x 10^-2 cubic meters

• 5.0 x 10^-3 cubic meters

• 2.5 x 10^-3 cubic meters

A computer processes data at a rate of 1.2 x 10^6 bytes per second. How many bytes can it process in 3.0 x 10^2 seconds?

• 2.4 x 10^8 bytes

• 1.8 x 10^8 bytes

• 4.2 x 10^8 bytes

• 3.6 x 10^8 bytes

A biologist is measuring the growth of a plant that grows at a rate of 1.5 x 10^2 centimeters per week. How much will it grow in 4.0 x 10^1 weeks?

• 2400 centimeters

• 150 centimeters

• 6000 centimeters

• 400 centimeters

A chemical reaction produces 5.0 x 10^3 liters of gas per hour. How much gas is produced in 2.0 x 10^2 hours?

• 1.0 x 10^6 liters

• 1.5 x 10^6 liters

• 5.0 x 10^4 liters

• 2.0 x 10^5 liters