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WorksheetsChapter 8 Motion
Total questions: 20
Worksheet time: 19mins
From the given v-t graph, it can be inferred that the object is
At rest
In uniform motion
Moving with uniform acceleration
In non-uniform motion
Which of the following is most likely not a case of uniform circular motion?
Motion of hours’ hand on the dial of a clock
Motion of a toy train on a circular track
Motion of a racing car on a circular track
Motion of the earth around the sun
The numerical ratio of displacement to distance for a moving object is:
Always more than 1
Always less than 1
Equal to 1 or more than one
Equal to 1 or less than 1
Rate of change of displacement is called
Deceleration
Speed
Acceleration
Velocity
The average velocity of a body is given by the expression :
v = u+ at
2as = v2− u2
Vav=(u + v)/2
S= ut + ½ a t2
SI Unit of measurement of acceleration is
m/s
m/s2
m/hr
M
Distance covered by a body from velocity-time graph is
Is denoted by a line parallel to the distance axis at any point on the time axis
Is denoted by a line parallel to the time axis at any point on the distance axis
Equal to the slope of the graph
Area under the graph
What does the slope of distance - time graph give?
Acceleration
Uniform speed
Speed
both Speed and Uniform speed
An example of a body moving with constant speed but still accelerating is
A body moving with constant speed on a straight road
A body moving in a helical path with constant speed
A body moving with constant speed in a circular path
A body moving with constant speed on a straight railway track
Suppose a boy is enjoying a ride on a marry-go-round which is moving with a constant speed of 10 m/s. It implies that the boy is:
At rest
Moving with no acceleration
In accelerated motion
Moving with uniform velocity
A particle is moving in a circular path of radius r.
The displacement after half a circle would be:
Zero
π r
2 r
2π r
When a car driver travelling at a speed of 10 m/s applies brakes and brings the car to rest in 20 s, then the retardation will be:
+ 2 m/s2
− 2 m/s2
− 0.5 m/s2
+ 0.5 m/s2
In a free fall the velocity of a stone is increasing equally in equal intervals of time under the effect of gravitational force of the earth. Then what can you say about the motion of this stone? Whether the stone is having:
Uniform acceleration
Non-uniform acceleration
Retardation
Constant speed
If a particle moves with a constant speed, the distance-time graph is a
stair like line
circle
straight line
polygon
One of the following is not a vector quantity. This one is :
displacement
speed
acceleration
velocity
Which of the following could not be a unit of acceleration?
cm s−2
km/s2
m/s2
m/s2
A bus moving along a straight line at 20 m/s undergoes an acceleration of 4 m/s2. After 2 seconds, its speed will be: (use EOM)
8 m/s
12 m/s
16 m/s
28 m/s
A worker covers a distance of 40 km from his house to his place of work, and 10 km towards his house back. Then the displacement covered by the worker in the whole trip is
zero km
10 km
30 km
50 km
Acceleration is a vector quantity, which indicates that its value
Is always negative
Is always positive
Is zero
Can be positive, negative or zero
The value of 2 km/h is equal to
4/9 m/s
5/9 m/s
13/9 m/s
7/9
