Unit Conversion
There are
______centimeters = _____ meter
______millimeters = _____ meter
______kilograms = ______ grams
100 cm = 1 m
1000 mm = 1 m
1 kg = 1000 g
10 = 5x + 4
Solve for x and answer with a decimal
x = 1.2
A percent difference below five percent means that two measurements are _________. (Precise, accurate, idealized, rational)
Precise
How many sig figs: 3,450
3
Total pay (P) equals hourly wage (w) times hours worked (h): P = w h
If the hourly wage (w) is doubled, will your total pay increase, decrease or stay the same?
Increase
Conver 79 minutes to seconds.
4,740 seconds
x/17 = 345
Solve for x
x = 5,865
A percent error less than 5% between a measurement and the actual value means the measurement is _______. (Precise, accurate, idealized, rational)
Accurate
Convert 12,300 to scientific notation.
1.23 * 104
Velocity (v) is equal to displacement (x) divided by time (t): V = x / t
Does the velocity increase, decrease, or stay the same if the time is doubled.
Decrease
Convert 3.5 kg to grams
3,500 grams
7x + 4 = 25
Solve for x
x = 3
Jim guesses the age of Leah to be 25. Abby guesses that Leah's age is 21. Leah's actual age is 20. What is the average of Jim and Abby's guesses?
23
2.3 * 10-3
Total pay (P) equals hourly wage (w) times hours worked (h): P = w h
How does the total pay change if if we triple the hours worked.
Triples
Convert 345 millimeters to meters.
0.345 meters
84/x = 16.8
Solve for x
x = 5
Hailey guesses that there are 21 skittles in the bag. Skye guesses that there are 35. After counting they find the actual value is 22 skittles. Find the percent error of Hailey's measurement, and is she accurate?
4.55%, She is accurate.
How many sig figs in 0.0240
3
Jason originally makes $40 total after a day of work. His total pay (P) equals his hourly wage (w) times hours worked (h): P = w h
If his hourly wage doubles and his hours doubles, what is his new total pay?
$160
Convert 3 meters per second to feet per minute. (3.28 feet = 1 meter)
590.4 feet per minute
5/y + 3 = 13
Solve for y and write your answer as a decimal
y = 0.5
Carter and Sam measure the diameter of a penny. Carter measures the diameter is 2.6 cm and Sam measures the diameter is 2.8cm. The actual diameter is 2.5cm. What is the percent difference of their measurements and are they precise?
7.4%, Not precise.
How many sig figs in 540.000
6
A car has a velocity of 10 m/s. Velocity (v) is equal to distance (x) divided by time (t):
v = x / t
If the distance doubles and the time is tripled, what is the car's new velocity?
6.67 m/s