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CBSE · Class 6 · Science

Measurement of Length and Motion

Standard difficulty · 20 questions · 40 marks

Name: Date: Score: ____ / 40

Show your working for Sections B and C. Answers are on the last page — try every question first!

Section A — Choose the correct answer8 × 1 = 8 marks
1.
The SI unit of length is the:
  1. kilometre
  2. handspan
  3. centimetre
  4. metre
2.
The motion of the Earth going around the Sun is:
  1. no motion
  2. linear
  3. circular
  4. oscillatory
3.
The best unit to measure the height of a building is the:
  1. millimetre
  2. centimetre
  3. kilometre
  4. metre
4.
16.5 km is equal to:
  1. 165,000 m
  2. 1,650 m
  3. 16,500 m
  4. 165 m
5.
2 m 49 cm is equal to:
  1. 259 cm
  2. 249 cm
  3. 69 cm
  4. 2,049 cm
6.
A ruler's zero end is broken, so a pencil is measured from the 3 cm mark. Its other end is at 8 cm. How long is the pencil?
  1. 5 cm
  2. 3 cm
  3. 8 cm
  4. 6 cm
7.
A desk is 8 handspans long. Neha's handspan is 15 cm. About how long is the desk?
  1. 105 cm
  2. 23 cm
  3. 135 cm
  4. 120 cm
8.
13 cm 8 mm is equal to:
  1. 1,308 mm
  2. 21 mm
  3. 138 mm
  4. 148 mm
Section B — Short answer8 × 2 = 16 marks
9.
Why do we need standard units of measurement?
10.
Is each motion "linear", "circular" or "oscillatory"? (a) a ball rolled on a straight floor (b) an apple falling from a tree
11.
Which unit (mm, cm, m or km) would you use for (a) the length of a river (b) the height of a door?
12.
Convert 1,700 m into kilometres.
13.
Aarav is 168 cm tall. Write his height in metres and in millimetres.
14.
A leaf is measured from the 5 cm mark of a broken ruler, and its tip is at 24.5 cm. How long is the leaf?
15.
A coin is 2.5 cm wide. How many coins in a row would cover 35 cm?
16.
A runner goes 6 times around a 250 m track. How far does she run, in metres and in kilometres?
Section C — Word problems4 × 4 = 16 marks
17.
Describe the correct way to measure the length of a pencil with a ruler.
18.
Meena walks 200 m to the bus stop, travels 3 km by bus and then walks 38 m to school. (a) What is the total distance in metres? (b) In kilometres? (c) Name the type of motion of the bus on a straight road and of its wheels.
19.
Describe the type of motion in each: the blades of a ceiling fan; an apple falling from a tree; a child on a swing; a car on a straight highway. Give one more example of each type.
20.
A table is 720 cm long. Riya's handspan is 18 cm and her father's is 20 cm. (a) How many handspans long is the table for each? (b) Why do they get different answers? (c) What should they use instead?
AmbifulWorksheets
Practice that never repeats
CBSE · Class 6 · Science

Answer key

Measurement of Length and Motion · AW-6S-LEN-2026-V1 · For parents — fold back or tear off before handing the sheet to your child.

QAnswerWorking
1(d) metre—
2(c) circular—
3(d) metre—
4(c) 16,500 m16.5 × 1000 = 16500
5(b) 249 cm2 × 100 + 49 = 249
6(a) 5 cm8 − 3 = 5
7(d) 120 cm8 × 15 = 120
8(c) 138 mm13 × 10 + 8 = 138
9Body units like handspans differ from person to person; standard units give the same measure everywhere.—
10(a) linear (b) linear—
11(a) kilometre (b) metre—
121.7 km1700 ÷ 1000
131.68 m; 1680 mm168 ÷ 100; 168 × 10
1419.5 cm24.5 − 5
1514 coins35 ÷ 2.5 = 14
161,500 m; 1.5 km6 × 250 = 1500
17Place the ruler along the pencil with one end at the zero mark (or a full mark if zero is broken). Keep your eye directly above the other end and read the mark. Subtract the starting mark if you did not start at zero.—
18(a) 3,238 m (b) 3.238 km (c) The bus: linear; its wheels: circular.200 + 3000 + 38
19the blades of a ceiling fan: circular; an apple falling from a tree: linear; a child on a swing: oscillatory; a car on a straight highway: linear. Any correct extra examples.—
20(a) Riya: 40; father: 36 (b) Their handspans are different sizes. (c) A standard unit such as the centimetre, with a ruler or tape.720 ÷ 18; 720 ÷ 20