Unit 1 - Lesson 3 : Physical Quantities, Scalars and Vectors

1
The scalar quantity is identified by its...........
2
......... is a scalar physical quantity that is identified by magnitude only
3
All of the following are scalar quantities except..........
4
To determine the length, mass and time, we must know.........
5
From the examples of the scalar physical quantities are..........
6
Which of the following physical quantities are considered as scalars only?..........
7
From the examples of the scalar quantities is the..........
8
.......... is the physical quantity that both its magnitude and direction are necessary for identifying it.
9
Which of the following physical quantities are considered as vectors only?..........
10
From the examples of the vector physical quantities is..........
11
......... is a vector quantity measured in m/sec.
12
Acceleration is a...........
13
The shortest length covered by the object in a fixed direction is called........
14
Displacement is a.........
15
When an object moves in a straight line in one direction, therefore.........
16
The distance that is covered by a body in a certain direction is called.........
17
A body moved a distance of 20 metres in a straight line in the same direction so, the amount of its displacement is.........
18
If a person moves 8 m to the north, then 4 m to the east, then 8 m to the south, his displacement equals.......... in the east direction.
19
........... is considered from the fastest wild animals.
20
Measurement unit of velocity is.............
21
The average velocity is determined by the relation.........
22
The plane which flies against the wind direction........ than that which flies in the same direction of wind.