Scientific Notation

Convert 0.000045 to scientific notation.

• 4.5 x 10^5

• 4.5 x 10^-4

• 4.5 x 10^4

• 4.5 x 10^-5

Convert 6.72 x 10^4 to standard form.

• 67000

• 60000

• 67200

• 65000

Multiply 3.2 x 10^5 by 2.5 x 10^3.

• 7.2 x 10^8

• 6.4 x 10^8

• 8.0 x 10^8

• 8.5 x 10^8

Divide 7.8 x 10^6 by 2 x 10^2.

• 1.95 x 10^4

• 3.9 x 10^4

• 4.6 x 10^4

• 5.2 x 10^4

Add 4.5 x 10^3 and 2.3 x 10^4.

• 6.8 x 10^4

• 2.75 x 10^4

• 3.5 x 10^4

• 1.2 x 10^4

Subtract 5.6 x 10^5 from 8.9 x 10^5.

• 6.6 x 10^5

• 2.3 x 10^5

• 4.9 x 10^5

• 3.3 x 10^5

If the distance from Earth to the Sun is approximately 9.3 x 10^7 miles, and the distance from Earth to the Moon is approximately 2.4 x 10^5 miles, how many times farther is the Sun from Earth compared to the Moon?

• 93.5

• 3875

• 387.5

• 24.5

Tags

NGSS.HS-ESS1-4

A bacteria culture has 7.2 x 10^6 cells. If each cell divides into 3 cells every hour, how many cells will there be after 5 hours?

• 437399999

• 437400002

• 437400001

• 437400000

The mass of the Earth is approximately 5.97 x 10^24 kg, and the mass of the Moon is approximately 7.35 x 10^22 kg. What is the difference in mass between the Earth and the Moon?

• 5.97 x 10^24 kg + 7.35 x 10^22 kg = 6.04 x 10^24 kg

• 5.97 x 10^24 kg - 7.35 x 10^22 kg = 5.93 x 10^24 kg

• 5.97 x 10^24 kg / 7.35 x 10^22 kg = 8.12 x 10^2 kg

• 5.97 x 10^24 kg * 7.35 x 10^22 kg = 4.40 x 10^47 kg

The speed of light is approximately 3.00 x 10^8 m/s. If light from the Sun takes about 8.3 minutes to reach Earth, how far is Earth from the Sun in meters?

• Distance from Earth to Sun is approximately 1.25 x 10^11 meters.

• Distance from Earth to Sun is approximately 1.50 x 10^11 meters.

• Distance from Earth to Sun is approximately 1.00 x 10^11 meters.

• Distance from Earth to Sun is approximately 2.50 x 10^11 meters.

Tags

NGSS.HS-ESS1-4