Approximation Methods
Trending Questions
Q.
Define cubit, handspan, armlength, and footspan.
Q.
Define rectilinear and curvilinear motion.
Q. ______ is the length from the elbow to the fingertips and was used in ancient Egypt to measure length.
- Footstep
- One pace
- Cubit
- Yard
Q. The girth of a tree can be measured by using a:
- Metre scale
- Measuring tape
- Plastic ruler
- Metre rod
Q.
Name four devices that can be used to measure length.
Q.
Give examples for the instruments used for measuring distances.
Q.
A mango falling from a tree is an example of curvilinear motion.
- True
- False
Q.
Instruments used to measure the length are-
Metre scale
Ruler
Measuring tape
All of the above
Q. ______ is the distance between the end of the outstretched arm and the chin.
Q.
A cloth measurer uses a meter rod to measure the length of the cloth.
- True
- False
Q.
Question 9
Why could you not use an elastic measuring tape to measure distance? What would be some of the problems you would meet in telling someone about a distance you measured with an elastic tape?
Q.
A car turning around a traffic roundabout describes a ______ motion.
Q. ______ is the distance between the end of the outstretched arm and the chin.
- Cubit
-
Hand span -
Foot -
Yard
Q. Sonu wants to get her dress stitched by a tailor. Which measuring instrument does the tailor use to take measurements of Sonu?
- Metre scale
- Metre rod
- Measuring tape
- Elastic tape
Q. The photograph is given in the figure shows a section of a grille made up of straight and curved iron bars. How would you measure the length of the bars of this section, so that the payment could be made to the contractor?
Q. The waist of a person can be measured using a ______.
- thread
- measuring tape
-
metre scale - plastic ruler
Q.
Answer in one statement:
What is a simple pendulum? What type of motion does it have?
Q. A pencil is placed next to a ruler such that the ends of the pencil are at 6.2 cm and 13.9 cm markings on the ruler. What is the length of this pencil?
- 6.7 cm
- 7.7 cm
- 8.3 cm
- 7.3 cm
Q. Assertion(A): Cubit cannot be used as a standard unit of measurement.
Reason(R): Ancient units are not fixed in length and vary from person to person.
Reason(R): Ancient units are not fixed in length and vary from person to person.
- Both A and R are true, but R is not the correct explanation of A.
- Both A and R are true and R is the correct explanation of A.
- A is true, but R is false.
- A is false, but R is true.
Q. Assertion(A): Cubit cannot be used as a standard unit of measurement.
Reason(R): Ancient units are not fixed in length and vary from person to person.
Reason(R): Ancient units are not fixed in length and vary from person to person.
- A is false, but R is true.
- A is true, but R is false.
- Both A and R are true and R is the correct explanation of A.
- Both A and R are true, but R is not the correct explanation of A.
Q.
Find the odd one out. Give a reason for your choice.
- Translatory motion, rectilinear motion, curvilinear motion, rotatory motion
Q. Length of a curved line can be measured using a ______.
- weighing balance
- metre scale
- thread
- spring balance
Q. Can the thickness of a metal wire be measured using a scale?
Explain. (4 marks)
Explain. (4 marks)
Q. ______ is the distance between the end of the outstretched arm and the chin.
-
Hand span -
Foot - Cubit
-
Yard
Q. If two students are measuring a hand span of there selves. Will they get a correct measure or wrong measure?
Q. Length of a curved line can be measured using a ______.
- weighing balance
- metre scale
- thread
- spring balance
Q. Sonu wants to get a dress stitched. Which measuring instrument should the tailor use to take measurements?
Q. Four children measured the length of a table which was about 2 m. Each of them used different ways to measure it.
(i) Sam measured it with a half metre long thread.
(ii) Ram with a 15 cm scale from her geometry box.
(iii) Reena measured it using her hand span.
(iv) Salim measured it using a 5 m long measuring tape.
Which one of them would get the most accurate length? Give reason for your answer.
(i) Sam measured it with a half metre long thread.
(ii) Ram with a 15 cm scale from her geometry box.
(iii) Reena measured it using her hand span.
(iv) Salim measured it using a 5 m long measuring tape.
Which one of them would get the most accurate length? Give reason for your answer.
Q. Four children measures the length of a table which is about 2 m. Each of them uses different ways to measure it.
(i) Sam measures it with a half metre long thread.
(ii) Gurmeet measures it with a 15 cm scale from her geometry box.
(iii) Reena measures it using her hand span.
(iv) Salim measures it using a 5 m long measuring tape.
Which one of them will get the most accurate length? Give reason for your answer.
(i) Sam measures it with a half metre long thread.
(ii) Gurmeet measures it with a 15 cm scale from her geometry box.
(iii) Reena measures it using her hand span.
(iv) Salim measures it using a 5 m long measuring tape.
Which one of them will get the most accurate length? Give reason for your answer.
Q. Figure shows a measuring scale which is usually supplied with a geometry box. 
Which of the following distance cannot be measured with this scale by using it only once?
(a) 0.1 m
(b) 0.15 m
(c) 0.2 m
(d) 0.05 m
Which of the following distance cannot be measured with this scale by using it only once?(a) 0.1 m
(b) 0.15 m
(c) 0.2 m
(d) 0.05 m
- 0.1 m
- 0.15 m
- 0.2 m
- 0.05 m
