Please select a subject first
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Write true or false.
Mass is the measure of quantity of matter.
Concept: undefined >> undefined
Fill in the blank:
The ............ of an object is measured with the help of a beam balance.
Concept: undefined >> undefined
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Match the following column:
| Column A | Column B |
| (a) Length of a housing plot | (1) Clock |
| (b) Breadth of a book | (2) Beam balance |
| (c) Mass of an apple | (3) Thermometer |
| (d) Period of time for study | (4) Measuring tape |
| (e) Temperature of a body | (5) Graph paper |
| (f) Surface area of a leaf | (6) Metre ruler |
Concept: undefined >> undefined
Define mass.
Concept: undefined >> undefined
Name the instrument which is commonly used to measure the mass of a body. State how is it used?
Concept: undefined >> undefined
Define one kilogram, the S.I. unit of mass.
Concept: undefined >> undefined
Name and define the S.I. unit of time. How is it related to (i) minute (ii) hour, (iii) day, and (iv) year?
Concept: undefined >> undefined
Tick the most appropriate answer.
The SI unit of mass is
Concept: undefined >> undefined
Answer the following in short.
What do you understand by the term ‘mass’? Name any one instrument used for weighing.
Concept: undefined >> undefined
Answer the following in short.
Explain the working of a beam balance.
Concept: undefined >> undefined
Tick the most appropriate answer.
Which of the following devices is used to measure mass?
Concept: undefined >> undefined
Fill in the blank.
The amount of matter contained in a body is known as its ...........
Concept: undefined >> undefined
Solve the following numerical problem.
The masses of five marbles are 50 g, 55 g, 60 g, 65 g, and 70 g. Find their average mass.
Concept: undefined >> undefined
State whether the following statement is True or False.
A pulley changes the direction of force.
Concept: undefined >> undefined
Fill in the blank:
A pulley is used to change ........................
Concept: undefined >> undefined
Select the correct alternative:
A pulley is used because of it
Concept: undefined >> undefined
What is the mechanical advantage of an ideal pulley?
Concept: undefined >> undefined
The mechanical advantage of an actual pulley is less than one. Give a reason. What is the justification for using the pulley then?
Concept: undefined >> undefined
