Measuring Length and Zero Error

Q.

$50m23cm=\_\_\_\_\_\_\_\_cm$

Q.

While measuring the length of paper clip, the reading of the scale at one end is 1.0 cm and on the other end is 8.9 cm. What is the length of paper clip?

1. 7.6 m

2. 7.9 m

3. 8.0 m

4. 9.9 m

Q. A piece of ribbon folded five times is placed along the 30 cm long measuring scale from 2cm to 27.5 cm. The length of the ribbon is between

1. 1.15 - 1.25 m
2. 1.25 - 1.35 m
3. 1.50 - 1.60 m
4. 1.60 - 1.70 m

Q. The appropriate unit for measuring the thickness of a coin is:

1. centimetre
2. millimetre
3. picometre
4. kilometre

Q. The length of a pencil is $8cm$. Identify the magnitude and the unit.

1. $8$ - magnitude, $cm$ - unit
2. $cm$ - magnitude, $8$ - unit
3. $4$ - magnitude, $cm$ - unit
4. $cm$ - magnitude, $4$ - unit

Q. The diameter of a ball ‘d’ measured against a measuring scale as shown is:

Q. Length of a 35 cm long block when measured using a broken scale is shown as 50 cm. The zero error is ___mm

1. 150

Q.

The height of Rahul is $165$cm $0.9$ mm. What will be his height in cm?

Q. Find the length of the side of the cuboid shown below.

1. 4

Q.

While measuring the length of a steel needle, the reading of the scale at one end is 3.0 cm and at the other end is 44.2 cm. Determine the length of the needle.

1. 41.2 cm

2. 4.12 cm

3. 412 cm

4. 4.12 m

Q. Find the length of the side of the cuboid in cm shown below.

1. 5.5

Q. The reading of the scale at one end of the pencil is 3.0 cm and at the other end is 33.1 cm. The length of the pencil is:

1. 31.1 cm
2. 36.1 cm
3. 29.9 cm
4. 30.1 cm

Q. While measuring length of a wooden block, reading of the scale at one end is 3.5 cm and at the other end is 13.7 cm. What is the length of the wooden block?

1. 
   10.2 cm
2. 
   11.2 cm
3. 
   12.2 cm
4. 
   13.7

Q. $1km=$ __________.

1. $100cm$
2. $10mm$
3. $1000m$
4. $10m$

Q. Identify the instrument(s) used to measure the length of an object.

1. Metre scale
2. Metre rod
3. Thermometer
4. Metre tape

Q. The error that occurs when the length of an object is measured using a scale that has damaged zero mark is called:

1. Zero error
2. Numerical error
3. Angular error
4. Parallax error

Q. ______ is the length from the elbow to the fingertips and was used in ancient Egypt to measure length.

1. Footstep
2. One pace
3. Cubit
4. Yard

Q. A 1 m rod has 4 points marked as given in the figure. If each segment is of equal measure, then what will be the measure of a single part?

1. $2m$
2. $20m$
3. $20cm$
4. $2cm$

Q. In the SI system, length, mass, and time are measured as:

1. $m$, $kg$, $s$
2. $cm$, $g$, $min$
3. $km$, $g$, $hr$
4. $mm$, $kg$, $hr$

Q. Four pieces of wooden sticks P, Q, R and S are placed along the length of a scale(as shown in the figure). Arrange P, Q, R and S in ascending order of their lengths.
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Q.

$1kilometre=$______ $metre$.

Q. Sanjay is travelling from Bangalore to Mysore by his car. Which physical quantity is used to describe how far he has travelled?

1. Time
2. Distance
3. Temperature
4. Mass