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Very Short Question Answers: Measurement of Length and Motion | Science Class 6 PDF Download

Q1: What is the SI unit of length?
Ans: 
Metre (m).

Q2: How many centimetres are in a metre?
Ans: 
100 centimetres.

Q3: What body part was commonly used for measurement in the past?
Ans:
Handspan.

Q4: What is the smallest unit of length in a centimetre?
Ans:
Millimetre (mm).

Q5: How can measuring with different handspans lead to errors?
Ans: 
Variability in handspan size.

Q6: What should you do if a scale's ends are broken?
Ans: 
Use a full mark as the starting point.

Q7: What is the purpose of the International System of Units?
Ans:
To standardize measurements globally.

Q8: How should the scale be positioned when measuring?
Ans:
In contact with the object.

Q9: What is the correct way to write units of length?
Ans: 
Lowercase letters with a space before the number.

Q10: How do visually challenged students measure lengths?
Ans: 
Using special scales with raised markings.

Q11: What is a reference point?
Ans: 
A reference point is a fixed point used to describe the position of an object.

Q12: Give an example of a reference point in daily life.
Ans:
The park is two blocks north of the school.

Q13: What ensures accurate measurements of positions?
Ans: 
Using consistent reference points ensures accuracy in measurements.

Q14: When is an object considered to be in motion?
Ans:
An object is in motion if its position changes relative to a reference point.

Q15: What type of motion occurs along a straight line?
Ans: 
Linear motion occurs when an object moves along a straight line.

Q16: Name an example of circular motion.
Ans: 
The motion of a merry-go-round is circular motion.

Q17: What is oscillatory motion?
Ans:
Oscillatory motion involves movement back and forth about a fixed position.

Q18: What defines periodic motion?
Ans:
Periodic motion repeats its path after a fixed interval of time.

Q19: List one traditional method of measurement.
Ans:
Using body parts for measurement was a traditional method.

Q20: What is the importance of standard units of measurement?
Ans: 
Standard units provide a uniform way of measuring for consistency.

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FAQs on Very Short Question Answers: Measurement of Length and Motion - Science Class 6

1. What is the standard unit for measuring length in the metric system?
Ans.The standard unit for measuring length in the metric system is the meter (m).
2. How can we measure shorter lengths accurately?
Ans.Shorter lengths can be accurately measured using a ruler or a measuring tape, which can provide measurements in centimeters (cm) or millimeters (mm).
3. What is the concept of motion in physics?
Ans.Motion in physics refers to the change in position of an object over time. It can be described in terms of speed, velocity, and acceleration.
4. How do we calculate speed?
Ans.Speed is calculated by dividing the distance traveled by the time taken. The formula is Speed = Distance / Time.
5. Why is it important to measure length accurately in experiments?
Ans.Accurate measurement of length is crucial in experiments as it ensures precision and reliability of results, which can affect the outcomes and conclusions drawn from the experiment.
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