Ruler Quiz
Questions: 16 · 10 minutes
1. A metric ruler’s smallest divisions are millimeters. What is the most appropriate standard precision for a reading made with it?
To the nearest tenth of a millimeter
To the nearest centimeter only
To the nearest millimeter
To the nearest half-centimeter
2. An inch on a ruler is divided into 16 equal spaces. What does each smallest space represent?
1/8 inch
1/12 inch
1/16 inch
1/32 inch
3. An object begins at the 1-inch mark and ends at 6 3/8 inches. What is its length?
4 3/8 inches
5 3/8 inches
5 1/8 inches
7 3/8 inches
4. A crayon measures 3.7 cm. What is its length in millimeters?
37 mm
3.07 mm
30.7 mm
370 mm
5. Which measurement is the most reasonable length for a standard classroom pencil?
18 millimeters
18 centimeters
1.8 meters
1.8 millimeters
6. How many millimeters are in one centimeter?
12 millimeters
5 millimeters
10 millimeters
100 millimeters
7. When reading a ruler, where should your eye be positioned to reduce parallax error?
Near the ruler’s zero mark
Level with the side of the ruler
At the far end of the object
Directly above the endpoint being read
8. A ruler has a small blank margin before its zero mark. Why should an object be aligned with zero rather than with the ruler’s physical edge?
The margin changes centimeters into millimeters
The physical edge and the measurement scale may not begin at the same place
Measurements must always begin at the first numbered centimeter
The edge is intended only for drawing lines
9. Which is the most reasonable measurement for the width of a typical notebook?
21.4 mm
21.4 cm
2.14 m
214 cm
10. Using the conversion 1 inch = 2.54 cm, how many centimeters are in 2.5 inches?
5.04 cm
7.62 cm
6.45 cm
6.35 cm
11. A line begins at zero and ends at the third quarter-inch mark after 5 inches. How long is it?
5 1/4 inches
5 1/2 inches
6 1/4 inches
5 3/4 inches
12. Strip A is 15.2 cm long. Strip B is 152 mm long. How do their lengths compare?
They are equal in length
Strip B is 10 times longer
Strip A is 0.2 cm longer
Strip A is 10 times longer
13. Between 4 and 5 inches, a ruler shows eight equal spaces. What measurement is at the sixth mark after 4 inches?
4 5/8 inches
4 7/8 inches
4 6/10 inches
4 3/4 inches
14. In customary measurement, 12 inches equal which larger unit?
One yard
One meter
One foot
One half-foot
15. One end of an object is at 2.4 cm and the other is at 7.9 cm. How long is the object?
5.5 cm
5.3 cm
4.5 cm
10.3 cm
16. The zero end of a ruler is damaged. You place an object from 2.3 cm to 8.6 cm. What is its length?
6.3 cm
8.6 cm
6.9 cm
10.9 cm