Review for Intro Quiz

Review for Intro Unit Quiz

• Your quiz will be Wednesday, 9/20!! It will cover:

  • units and prefixes

  • approximations

  • scientific notation

  • conversions

  • graphing

Scientific Notation

​REVIEW: How to Write Scientific Notation

​Scientific Notation has two parts, separated by an x

​

​5.3 x 10⁷

The part before the x: The part after the x:​

​A number greater A power of 10

than or equal to 1,

​but less than 10

​The first part

• ​Must be a number between 1 and 10

• ​It can equal 1, but must be less than 10

​The second part

• Will be a power of 10

• ​BIG numbers will have a positive exponent

• ​small numbers will have a negative exponent

​Steps to put a number in scientific notation:

• ​Move your decimal to a place where your number is between 1 and 10

• Count the number of spaces you moved, that becomes your exponent​

Multiple Choice

When using scientific notation, a negative exponent means ...

• the standard number is greater than one

• the standard number is less than one

• the negative sign doesn't have a meaning

• None of the above

Multiple Choice

Convert this number into scientific notation: 0.068

• 6.9 x 10⁶

• 6.8 x 10^-9

• 6.8 x 10^-2

• None of the above

Multiple Choice

When using scientific notation, a positive exponent means ...

• the standard number is greater than one

• the standard number is less than one

• the negative sign doesn't have a meaning

• None of the above

Multiple Choice

Convert this number into scientific notation: 950,000

• 9.5 x 10⁵

• 9.5 x 10^-9

• 9.5 x 10²

• None of the above

Multiple Choice

Which value is the greatest

• 5.0 x 10^-9

• 5.0 x 10^-4

• 5.0 x 10⁶

• 5.0 x 10⁸

Multiple Choice

Which number is the least in value

• 5.0 x 10^-9

• 5.0 x 10^-4

• 5.0 x 10⁶

• 5.0 x 10⁸

Multiple Choice

Write 6,700 in scientific notation.

• 6.7 x 10³
• 6.7 x10^-3
• 67 x 10²
• 67 x 10^-2

Multiple Choice

The rule of scientific notation is to write all exponents with a base of ____.

• 50
• 5
• 100
• 10

Multiple Choice

What is scientific notation?

• A long way to write really short  numbers
• A short way to write really long numbers
• I don't know...
• None of the above

Multiple Choice

7.82 x 10^-6 is an example of scientific notation. The exponent of -6 tells you your number will be very ________.

• Large
• Small
• Basic

Multiple Choice

The SI unit for mass is _________.

• Pounds

• Inches

• Kilograms

• Ounces

​You also need to know your units...

​

Multiple Choice

What is the SI unit for measuring temperature?

• F°, Fahrenheit

• C°, Celcius

• K, Kelvin

• K°, Kelvin

Multiple Choice

What is the SI unit for measuring electric current?

• W, watts

• Hz, hertz

• J, joules

• A, ampere

Multiple Choice

What is the SI unit for measuring length?

• m, meters

• mi, miles

• f, feet

• km, kilometers

Multiple Choice

What is the SI unit for measuring mass?

• lbs, pounds

• oz, ounces

• g, grams

• kg, kilograms

Multiple Choice

What is the SI unit for measuring time?

• hr, hours

• s, seconds

• ms, milliseconds

• min, minutes

Multiple Choice

What is the SI unit for measuring large quantities of small entities?

• ml, milliliters

• mol, moles

• mg, milligrams

• Pa, pascals

Multiple Choice

What is the SI unit for measuring volume?

• m³, cubic meters

• L, liters

• L³, cubic liters

• m², square meters

​be aware...

• ​While m³ would be the SI unit for volume, it CAN also be measured in cm³ or mm³, etc.

• Just know if they are asking for the SI unit for length, area, or volume, it would be m, m², and m³.

• ​But if you are just being asked for an appropriate unit to measure that quantity in, it could have an prefix attached to it (for example: mm, mm², and mm³).

Now practice some conversions!​

​Use kermit to help!

​K H D M D C M

Multiple Choice

1 m = ___ cm

• 1
• 10
• 100
• 1000

Multiple Choice

1 km = ___ m

• 1
• 10
• 100
• 1000

Multiple Choice

71 km = ___ m

• 71
• 710
• 7,100
• 71,000

Multiple Choice

___ m = 400 cm

• 4
• 40
• 400
• 4000

Multiple Choice

1 kg = ___ g

• 1
• 10
• 100
• 1000

Multiple Choice

7 decimeters equals how many millimeters?

• .007
• 70
• 7
• 700

Multiple Choice

4 meters equals how many decimeters?

• 400
• 40
• 600
• 40000

Multiple Choice

3 kilometers equals how many meters?

• 3000
• 30
• 3
• 400

- And don't forget you will also have to graph!

​

- The quiz will be the last day to hand in the extra credit opportunity (create your own mnemonic for KHDMDCM)​

​