Motion and measurements of distances for class 6th
Motion and measurements of distances chapter of class 6 is very important for students. This chapter has questions and answers on topics like different modes of transport used to go from one place to another, measurement, SI units of measurement, the concept of meter, motion in a straight line, rectilinear motion, circular motion, and periodic motion.
Objective Test:-
Motion and Measurements for distances Subjective Test 1:-
Q.01- Arrange the following lengths in their increasing order.[1 Mark] 1 meter, 1 centimeter, 1 Kilometer, 1 millimeter
The International System of Units, universally known as the SI (form the French System International d’Unites) is necessary because lack of the standard unit of measurement would cause confusion and a waste of time in converting from one unit to another all the time.
Q.03- Why is foot not used as the standard unit of length? [ 2 Marks]
The size of the foot varies from person to person. If footsteps of two persons are used to measure the length respectively, then the two distances may not be equal. Thus a footstep is not a constant quantity. Hence, it cannot be used as a standard unit of length.
Q.04- Discuss the significance of measurement. Give examples where you use measurement. [ 3 Marks]
Measurement helps us to compare unknown quantities with the known quantities. Measurement helps us make quantitative statements about how big, how long, how fast things are. Without measurement, the final product will be full of errors. Examples:- Speedometer is used to measure the speed of the vehicles. The measuring tape is used to measure the length of anything.
Q.05- What do you mean by multiple motions? Explain it with an example.[ 3 Marks]
When a body possesses more than one simple motion, it is said to have multiple motions.
Example: You are travelling in a train. Wheels of a train has both rotational and translational motion. Thus they have 2 kinds of motion, i.e. multiple motions.
Q.06- Classify the following into different types of motion.
1) The motion of man on a straight road.
2) The motion of wheels of a car.
3) The motion of a vertically falling stone.
Similarities:
1) Both are undergoing rotational motion. 2) The distance of any point on the wheel or ceiling fan from the center of wheel or ceiling fan respectively will remain constant. Differences: 1) The ceiling fan is doing only rotational motion, whereas wheel is doing the translational and rotational motion. 2) The position of the center of ceiling fan does not change, whereas the position of the center of wheel changes after motion. 3) The ceiling fan is doing only one type of motion, whereas wheel is doing multiple motions at the same time.
Q.08- How can you measure the length of a curved line? [ 5 Marks]
Following are the steps to measure the length of a curved line:
1) First of all, we have to take a thread.
2) Now place the thread along the path of the curved surface.
3) Mark the thread at the endpoint up to which you want to measure the length.
4) Place the thread on the scale starting from zero to the marked endpoint.
5) Measure this length with the help of the scale.
Q.09- What are the different modes of transport? Give two examples for each. [ 5 Marks]
Transport modes are the means by which people and freight achieve mobility. They fall into one of three basic types, depending on over what surface they travel – land, water and air.
Land: train, bus and car
Air: Aeroplane, Spacecraft and Gliders
Water: Ships, Boats.
Motion and Measurements for distances Subjective Test 2:-
NCERT Examplar Multiple Choice Questions:-
NCERT Examplar Very Short Questions:-
These solutions will assist you in understanding the important topics which will be helpful in your future studies. In order to score good marks, students are advised to study the answers thoroughly. A proper understanding of this chapter will also help the students with a few other chapters in higher classes. Every question is explained concisely in simple language to better understand the students.
