untitled

The half-life of Uranium is 2.5 x 10⁵ years. What is this in standard form?

• 2500000

• 250

• 25000

• 250000

Write 4.83 x 10^-6 in Standard Form.

• 0.00048300

• 0.00004830

• 0.00000483

• 0.00000438

Convert 0.0000037 to Scientific Notation.

• .37 x 10^-7

• 3.7 x 10^-6

• 37 x 10^-5

• 370 x 10^-4

Mercury’s average distance from the sun is 57,190,000 km. What is the distance in scientific notation?

• 5719 x 10⁴

• 571.9 x 10⁵

• 57.19 x 10⁶

• 5.719 x 10⁷

(3 x 10⁷)(3.1 x 10^-4)

• 9.3 x 10^-28

• 9.3 x 10³

• 6.1 x 10³

• 6.1 x 10^-28

The speed of light is about 300 million meters per second. Which expression shows this speed in scientific notation?

• 300 x 10⁶

• 300 x 10^-6

• 3 x 10⁸

• 3 x 10^-8

To travel from Earth to Saturn, the craft needs to travel a total distance of 1.4 x 10⁹ km. A spacecraft leaves Earth’s orbit at a speed of 7 x 10⁵ km per day. How long will it take the spacecraft to reach Saturn? Express your answer in correct scientific notation.

• 2 x 10⁴

• 0.2 x 10⁴

• 2 x 10³

• 0.7 x 10⁴

There are approximately 3.1 x 10⁸ people in the United States. If on average each person has 4.1 x 10¹ coins lying around on dressers, in pockets, in cars, etc., how many total coins do all the people in the U.S. have?

• 127.1 x 10⁸

• 12.71 x 10⁹

• 1.271 x 10¹⁰

• .1271 x 10¹¹

There are approximately 3.61 x10⁵ babies born every day. How many babies are born in 30 days? Choose all that are correct.

• 10830000

• 10.83 x 10⁶

• 1.083 x 10⁷

• .1083 x 10⁸

The average distance from Jupiter to the Sun is about 5 x 10⁸ miles. The average distance from Venus to the Sun is about 7 x 10⁷ miles. Which planet is further from the Sun?

• Venus

• Earth

• Mars

• Jupiter

• Saturn