Chapter 2 Practice test

Chapter 2 Practice test

SI units: internationally recognised and agree upon manner of reporting values

• Length measured in meters (m)

• Time measured in seconds (s)

• Temperature measured in Kelvin (K)

• Mass measured in grams (g)

• Luminosity measured in Candela (cd)

• Electric current measured in Ampere (A)

• Amount of substance measured in Mol (mol)

Multiple Choice

Which is NOT a base unit?

• second

• kilogram

• degree celsius

• meter

Multiple Choice

Which value is NOT equivalent to the others?

• 500 m

• 5000 cm

• 0.5 km

• 5x10¹¹ nm

Multiple Choice

What is the correct representation of the value 702.0g in scientific notation ?

• 7.02 x10³ g

• 70.20 x10¹ g

• 7.020 x10 ² g

• 70.20 x 10² g

Multiple Choice

Three students measured the length of a stamp whose accepted length is 2.71cm. Based on the table on PAGE 66 which statement is true?

• A

• B

• C

• D

Multiple Choice

Calculate the percent error for Student 1's averaged value.

• 1.48%

• 3.70%

• 1.84%

• 4.51%

Multiple Choice

Solve the following problem with the correct number of significant figures.

• 22cm

• 21.4 cm

• 21.642 cm

• 21.6 cm

Multiple Choice

There are 2 reaction times: 2.573x10² s ; 3.60 x10^-1 s and 7.482 x10¹ s. What is the TOTAL reaction time?

• 3.68x10¹ s

• 7.78 x10¹ s

• 3.35 x10² s

• 3.3249 x10² s

Multiple Choice

How many significant numbers are there in a distance measurement of 20.070 km?

• 2

• 3

• 4

• 5

REFER TO THE GRAPH ON PAGE 88 ABOVE QUESTION 8

Multiple Choice

What volume will Gas A have at 450 K?

• 23 L

• 38 L

• 31 L

• 82 L

Multiple Choice

What temperature will Gas B have when it have a volume of 30L?

• 170 K

• 350 K

• 443 K

• 623 K

Multiple Choice

Which is NOT a quantitative measurement?

• length

• mass

• colour

• diameter

Multiple Choice

Which ruler would take more accurate measurements? ANd WHY (ruler A is on top, B below) (page 89)

• Ruler A because it is longer

• Ruler B because it is longer

• Ruler A because it shows measurements for mm

• Ruler B because is shows measurements for mm

Multiple Choice

What is the correct equation to calculate slope if you are given a graph? (refer to page 48)

• slope = rise / run

• slope = run/rise

• slope = rise x run

• slope = rise + run

Carefully analyse this grapgh on page 89

Multiple Choice

What is the depth of the ice layer that is 450 years old?

• 74 m

• 77 m

• 75 m

• 78 m