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Physics 9 Chapter 2 - Kinamatics -19
1.
To simplify the derivation of equations of motion, we assume that the motion is along a ......................line?
a) Curved
b) Slopped
c) Straight
d) None of these
2.
What is the symbol for initial velocity?
a) Symbol: vt
b) Symbol: vi
c) Symbol: va
d) Symbol: vf
3.
What does the slope of line in speed-time graph represent?
a) Speed
b) Acceleration
c) Time
d) Velocity
4.
Which graph is suitable for studying motion of object along a straight line?
a) Distance-time graph
b) None of these
c) Speed-time graph
d) Speed-distance graph
5.
Complete the given blank: vf - vi =...............?
a) at
b) S
c) a*vf
d) 2aS
6.
What is the first equation of motion?
a) vf - vi = at
b) S = vit
c) 2aS = vf2 - vi2
d) vf + vi = at
7.
What is the first equation of motion?
a) 2aS = vf2 - vi2
b) vf + vi = at
c) S = vit
d) vf = vi + at
8.
What is the formula of area of rectangle?
a) Area = length * width
b) Area = length / width
c) Area = length + width
d) Area = length - width
9.
What is the area of a rectangle if length of rectangle is 5cm and width is 10 cm?
a) 50 cm
2
b) 2 cm
2
c) 15 cm
2
d) 5 cm
2
10.
What is the formula of area of triangle?
a) ½ (base / height)
b) ½ (base + height)
c) ½ (base * height)
d) ½ (base - height)
11.
What is the area of a triangle if base is 5cm and height is 10 cm?
a) 50 cm
2
b) 10 cm
2
c) 25 cm
2
d) 5 cm
2
12.
What is the second equation of motion?
a) vf + vi = at
b) vf = vi + at
c) 2aS = vf2 - vi2
d) S = vit
13.
What is the formula of area of trapezium?
a) Area = ½ (sum of length of parallel sides) x height
b) Area = ½ (sum of length of parallel sides) - height
c) Area = ½ (sum of length of parallel sides) + height
d) Area = ½ (sum of length of parallel sides) / height
14.
What is the third equation of motion?
a) 2aS = vf2 - vi2
b) S = vit
c) vf + vi = at
d) vf = vi + at
15.
A car travelling at 10ms-1accelerates uniformly at 2ms-2. Calculate its velocity after 5s?
a) 60 ms
-1
b) 20 ms
-1
c) 10 ms
-1
d) 2 ms
-1
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