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Worksheets

Motion and time grade 7

Total questions: 195

Worksheet time: 3hrs 53mins

Name
Class
Date
1.

In Which Of The Statement Is Or Are Correct About “Thermometer”?

a)

Don’t hold the thermometer by the bulb

b)

Don’t washed thermometer by any liquid

c)

Don’t jerks the thermometer before use

d)

Don’t use clinical thermometer for the person who works in sunlight

2.

In Which Of The Following Statement Is Or Are Incorrect?

a)

Heat is a form of energy.

b)

Heat flows from one object to another object when there is a difference in temperature.

c)

In the transmission of heat total amount of heat remains unchanged.

d)

None of the above

3.

Stainless Steel Pans Are Usually Provided With Copper Bottoms. The Reason For This Could Be

a)

Copper is a better conductor of heat than the stainless steel

b)

Such pans appear colorful

c)

Copper bottom makes the pan more durable

d)

Copper is easier to clean than the stainless steel

4.

One Litre Of Water At 30 Degree Celsius Is Mixed With One Litre Of Water At 50 Degree Celsius. The Temperature Of The Mixture Will Be

a)

80 degree Celsius

b)

More than 50 degree Celsius but less than 80 degree Celsius

c)

20 degree Celsius

d)

Between 30 degree Celsius and 50 degree Celsius

5.

Rita Has Three Thermometers. She Wants To Measure The Temperature Of Her Body And That Of Boiling Water. Which Thermometer(S) Should She Choose?

a)

Clinical thermometer for measuring body temperature and laboratory thermometer for measuring the temperature of boiling water

b)

Clinical thermometer for measuring temperature of both.

c)

Laboratory thermometer for measuring temperature of both.

d)

Digital thermometer for measuring temperature of both.

6.

A bus travels 54 km in 90 minutes. The speed of the bus is

a)

0.6 m/s

b)

10 m/s

c)

5.4 m/s

d)

3.6 m/s

7.

Nearly all the clocks make use of

a)

rectilinear motion

b)

periodic motion

c)

random motion

d)

circular motion

8.

Ram walks to his school which is at a distance of 3 km from his home in 30 minutes. On reaching he finds that the school is closed and comes back by a bicycle with his friend and reaches home in 20 minutes. His average speed in km/h is

a)

8.3

b)

7.2

c)

5

d)

3.6

9.

If a body covers equal distances in equal interval of time, the body is said to be in..........

a)

Uniform motion

b)

Non uniform motion

c)

Stationary

d)

None of these

10.

Which of the following examples is related to rectilinear motion?

a)

Movement of Earth around the sun

b)

A car moving on a straight road

c)

Motion of the hands of a clock

d)

The needle in a sewing machine

11.

The metallic ball in a pendulum is called as_________.

a)

Gong.

b)

Fork.

c)

Rod.

d)

Bob.

12.

The motion that repeat itself after regular intervals of time can be_______.

a)

To and fro motion

b)

Circular motion

c)

Rectilinear motion

d)

Periodic motion

13.

The meter that is used to measure the distance moved by the vehicle is known as_______.

a)

Speedometer

b)

Odometer

c)

Ammeter

d)

Chronometer

14.

Which of the following relation is correct?

a)

Speed = Distance × Time

b)

Speed = Time / Distance

c)

Speed = Distance / Time

d)

Speed = 1/ Distance × Time

15.

The value of 2 km/h is equal to____.

a)

4/9 m/s.

b)

13/9 m/s.

c)

5/9 m/s.

d)

7/9 m/s

16.

An ancient time measuring device SUNDIAL at Jantar Mantar is in ___________.

a)

Ahmedabad

b)

Delhi

c)

Bombay

d)

Lucknow

17.

The time taken by a pendulum of a given length to complete one oscillation is___________.

a)

Different at different times

b)

Decreases at different times

c)

Same at all times

d)

Increases at different times

18.

To and fro movement along a fixed axis is called________.

a)

Oscillation

b)

Amplitude

c)

Time period

d)

None of these

19.

When a body covers equal distance in equal interval of time, the speed of the body is called as_______.

a)

Average speed

b)

Non uniform speed

c)

Uniform speed

d)

None of these

20.

The speed of a train is 20 m/s. What is the speed in km/h ?

a)

60 km/h

b)

40 km/h

c)

72 km/h

d)

20 km/h

21.

Speed of a car is 40km/h. What is the time taken if the distance between 2 cities is 480 km?

a)

10 h

b)

11h

c)

14 h

d)

12 h

22.

Boojho walks to his school which is at a distance of 3 km from his home in 30 minutes. On reaching he finds that the school is closed and comes back by a bicycle with his friend and reaches home in 20 minutes. His average speed in km/h is

a)

8.3

b)

7.2

c)

6.3

d)

9.2

23.

Time=

a)

d/s

b)

d*s

c)

s*d

24.

Device used to measure speed of a car is

a)

graph

b)

odometer

c)

speedometer

d)

none

25.

Which among the 2 objects is moving faster or both are at same speed?

(a)  

26.

What can you depict from the graph?

a)

object is in uniform motion

b)

object is in non uniform motion

c)

object has constant speed

d)

object is stationary

27.

What can you depict from the given graph?

a)

Object is moving with a constant speed

b)

Object is stationary

c)

Object is in uniform motion

d)

Object is in non uniform motion

28.

Which of the following relations is correct?

a)

Speed = Distance × Time

b)

Speed = Distance/Time

c)

Speed = Time / Distance

d)

Speed = 1 Distance Time

29.

Which of these can only measure time interval and not the time of day?

a)

sand clock

b)

sundial

c)

pendulum clock

d)

quartz clock

30.

If the speed of a moving body changes the the body is in

a)

non uniform motion

b)

uniform motion

c)

both

d)

none of these

31.

The figure shows the forces acting on a car moving at a constant speed. Which force would have to increase to make the car accelerate?

a)

A

b)

B

c)

C

d)

D

32.

Which one of the statements describes the motion of the car?

a)

It will be slowing down.

b)

It will be stationary.

c)

It will have a constant speed.

d)

It will be speeding up.

33.

The force that one surface exerts on another when the two rub against each other is called

a)

gravity

b)

friction

c)

inertia

d)

acceleration

34.

The upward force acting on an object submerged in a fluid is called

a)

drag

b)

pressure

c)

weight

d)

buoyant force

35.

The force that pulls falling objects toward Earth is called

a)

air resistance

b)

acceleration

c)

gravity

d)

free fall

36.

When unbalanced forces act on an object

a)

the object's motion does not change

b)

the inertia of the object increases

c)

the weight of the object decreases

d)

the object accelerates

37.

What is the net force on the box shown?

a)

10 N to the left

b)

10 N to the right

c)

60 N to the left

d)

50 N to the right

38.

Why is the sand not yet sliding out of the dump truck?

a)

Air resistance

b)

Friction

c)

Drag

d)

Tiny leprechauns holding it in place

39.

What forces are acting on a dropped book that falls to the floor?

a)

Gravity only

b)

Gravity and air resistance

c)

Air resistance only

d)

Friction only

40.

Which ball will hit the ground first if dropped at the same time and at the same height in a perfect vacuum?

a)

Metal first, then plastic, then wood

b)

Wood first, then plastic, then metal

c)

Metal, then wood, then plastic

d)

They will all hit at the same time

41.

Your computer is sitting at rest on your desk. Which of the following statements best describes this situation?

a)

There are no forces acting on the computer.

b)

The computer pushes on the desk only.

c)

The desk pushes on your computer only.

d)

The forces acting on the computer are balanced.

42.

A change to an objects' motion is caused by

a)

Balanced forces

b)

Unbalanced forces

c)

Acceleration

d)

Velocity

43.

Which is affected by where you are in the universe?

a)

Mass

b)

Weight

44.

Which equation is correct?

a)

weight = mass x gravity

b)

mass = weight x gravity

c)

gravity = weight x mass

45.

What is constant no matter where you are in the universe?

a)

Weight

b)

Mass

c)

Gravity

46.
How will this object move? 
a)
It won't move. 
b)
It will move to the right. 
c)
It will move to the left. 
d)
It will move up. 
47.

This type of force resists motion between two surfaces that are pressed together

a)

contact

b)

gravity

c)

friction

48.
If these teams are pulling with the same amount of force what will happen?
a)
The boy in blue will win.
b)
They will not move at all.
c)
The boy in red will win.
d)
Both will fall down.
49.

It is much more difficult to move a dresser full of clothes than an empty dresser. Why?

a)

An object in motion stays in motion.

b)

It takes more force to move an object with more mass.

c)

It takes more friction to move the empty dresser.

50.
Which force produces a change in motion?
a)
unbalanced force
b)
balanced force
c)
gravitational force
d)
frictional force
51.

The most appropriate unit for expressing the speed of a space rocket is:

a)

m/s

b)

km/s

c)

km/h

d)

km/min

52.

The instrument installed in a car for measuring the distance travelled by the car is called:

a)

barometer

b)

speedometer

c)

anemometer

d)

odometer

53.

The measurement of small time intervals became possible with the development of :

a)

sand clock

b)

sundial

c)

pendulum clock

d)

water clock

54.

The slope of a distance-time graph of a moving object indicates:

a)

distance moved by the object

b)

time taken by the object

c)

speed of the object

d)

position of the object

55.

The clocks and watches which are used for measuring time are based on :

a)

Rectilinear motion

b)

circular motion

c)

periodic motion

d)

rotational motion

56.

The distance moved by an object in a unit time is called

a)

Distance

b)

Displacement

c)

Time

d)

Speed

57.

The distance-time graph of vehicle moving with constant speed is a ________ line

a)

Curved

b)

horizontal

c)

straight

d)

parallel

58.

The time taken by the pendulum to complete one oscillation is called its

a)

duration

b)

displacement

c)

time interval

d)

time - period

59.

The to and fro motion of a simple pendulum is an example of _________ motion.

a)

Rectilinear

b)

curvilinear

c)

circular

d)

oscillatory

60.

A bus takes 30 minutes to travel a distance of 25 kilometers. The speed of the bus in km/h is :

a)

55 km/h

b)

50 km/h

c)

5 km/h

d)

75 km/min

61.

Which one of the following is a time measuring device:

a)

sundial

b)

odometer

c)

speedometer

d)

barometer

62.

SI unit of time is:

a)

minute

b)

hour

c)

second

d)

mili seconds

63.

A simple pendulum takes 32 seconds to complete 20 oscillations. The time period of this pendulum is:

a)

12 seconds

b)

1.6 seconds

c)

1.8 seconds

d)

52 seconds

64.

The speed of an object can be represented by:

a)

Pie chart

b)

bar graph

c)

distance-time graph or line graph

d)

histograms

65.

Which of the following is correct:

a)

Speed= distance / time

b)

distance = speed / time

c)

time= speed / distance

d)

speed = distance+ time

66.
An object is _____ if its position changes relative to another object.
a)
in motion
b)
at reset
c)
a frame of refence
d)
magical
67.
Which of the following is the closest match to the definition of motion?
a)
An objects change in position relative to a reference point
b)
The change in position of an object
c)
Constant speed
68.
What is the definition of speed?
a)
Distance/Time
b)
Change in velocity/Time
c)
A change in momentum
69.

An object is _____ if its position changes.

a)

in motion

b)

at reset

c)

a frame of reference

d)

magical

70.

What is the speed of a runner who runs 400 meters in 40 seconds?

a)

10 meters/second

b)

40 meters/second

c)

100 meters/second

d)

1,600 meters/second

71.

The distance moved by an object in a unit time is called

a)

acceleration

b)

speed

c)

motion

d)

displacement

72.

Motion of objects can be presented in pictorial form by their...............

a)

distance- speed graph

b)

distance-time graph

c)

time-time graph

d)

speed- distance graph

73.

Observe the figure.

The time period of a simple pendulum is the time taken by it to travel from

a)

A to B and back to A

b)

O to A, A to B and B to A

c)

B to A, A to B and B to O

d)

A to B

74.

A body whose position with respect to surrounding does not change is said to be in a state of

a)

Rest

b)

Motion

c)

Vibrational

d)

Curvilinear

75.

SI unit of time

a)

hour

b)

minute

c)

seconds

76.

Motion which repeats itself in a regular intervals of time is called ..............

a)

Linear motion

b)

circular motion

c)

periodic motion

d)

irregular motion

77.

Motion of objects can be presented in pictorial form by their...............

a)

distance- speed graph

b)

distance-time graph

c)

time-time graph

d)

speed- distance graph

78.

Observe the figure.

The time period of a simple pendulum is the time taken by it to travel from

a)

A to B and back to A

b)

O to A, A to B and B to A

c)

B to A, A to B and B to O

d)

A to B

79.

Which of the following is used to measure the distance traveled by a vehicle?

a)

Speedometer

b)

hydrometer

c)

odometer

d)

manometer

80.

The given graph represents

a)

Speed of A < Speed of B

b)

Speed of B < Speed of A

c)

Speed of A = Speed of B

d)

body is at rest

81.

(a)   is the change in position of an object with time.

82.

The movement seen in a giant wheel is an example of _____________ motion.

a)

Rectilinear

b)

Circular

83.

The above picture shows _____________ motion.

a)

Circular

b)

Rotational

c)

Rectilinear

84.

(a)   is the distance moved by an object in a unit time.

85.

The formula to calculate distance is

a)

S x T

b)

T/S

c)

S/T

86.

Name the time measuring device.

(a)  

87.

A bus covers a distance of 400 km in 5 hours. Calculate the speed of the bus.

a)

60 km/h

b)

50 km/h

c)

70 km/h

d)

80 km/h

88.

If a bus moves with a speed of 40 km/h and covers a distance of 240 km, how much time would it take to cover this distance?

a)

2 hours

b)

4 hours

c)

6 hours

d)

8 hours

89.

Convert 20 m/s to km/h.

a)

72 km/h

b)

32 km/h

c)

18 km/h

d)

25 km/h

90.

Convert 36 km/h to m/s

a)

20 m/s

b)

30 m/s

c)

10 m/s

d)

40 m/s

91.

Distance time graph is an example of (a)   graph.

92.

The above distance time graph shows

a)

An object moving with uniform motion

b)

An object moving with non- uniform motion

c)

An object at rest

93.

The above distance time graph shows

a)

An object moving with uniform speed

b)

An object moving with non uniform speed

c)

An object at rest

94.

The above distance time graph shows

a)

An object moving with uniform motion

b)

An object moving with non uniform motion

c)

An object at rest

95.

Find the time period of a simple pendulum that makes 10 oscillations in 16 seconds.

a)

2.4 s

b)

1.6 s

c)

0.16 s

d)

16 s

96.
Reading Comprehension-The Sundial Bridge
 Both “Build a Sundial” and “The Sundial Bridge” include the idea that— 
a)
people used sundials before clocks were invented. 
b)
a modern sundial was built in Redding, California. 
c)
a sundial’s time can be checked with a “noon mark.” 
d)
making a sundial today is easy. 
97.
Read the sentence from the passage.
"People in ancient Egypt, Greece, and China made shadow clocks, or sundials, in all shapes and sizes." 
"At night, or on cloudy days, they didn't work. So how did people tell time when there was no  sunlight?"
Which point is the author making with the evidence in these sentences?
a)
Sundials did not endure through the years.
b)
Ancient sundials worked better than modern sundials.
c)
Sundials were not ideal devices for telling time. 
d)
Large sundials would tell time on cloudy days.
98.

Shadows are longest during _______.

a)

morning and evening

b)

noon

c)

night

99.

The marks on a sun dial show __________ intervals

a)

shadow

b)

time

c)

season

d)

marks

100.

A shadows length is the shortest at ___________

a)

noon

b)

Sun rise

c)

Sun set

d)

4:00 pm

101.

What time is it in picture A

a)

12 P.M.

b)

8 A.M.

c)

4 P.M.

d)

12 A.M.

102.

What time is it in picture B

a)

12 P.M.

b)

8 A.M.

c)

4 P.M.

d)

12 A.M.

103.

What time would there be no shadow?

a)

12 P.M.

b)

8 A.M.

c)

4 P.M.

d)

12 A.M.

104.

The fact that the time period of a simple pendulum remains same is used in ............clock

a)

SUNDIAL

b)

SIMPLE

c)

PENDULUM

105.

SI unit if time

a)

hour

b)

minute

c)

seconds

106.
A bird flies at a speed of 4 m/s.  It flies for 2160 seconds from its nest to the field.  How much distance did the bird cover?
a)
540 meters
b)
8,640 meters
c)
2164 meters
d)
2156 meters
107.
A car travels 300 km in 6 hours. What is the average speed of the car (in km/hr)?
a)
0.02 km/hr
b)
1,800 km/hr
c)
50 km/hr
d)
50 km
108.
A storm is moving toward your house at a speed of 20 km/hr.  It is now 60 km away from your house.  In what time will the storm reach your house?
a)
0.3 hours
b)
1200 hours
c)
3 km
d)
3 hours
109.
An airplane leaves Orlando, FL and travels 540 miles to Washington D.C. The flight takes 90 minutes. What is the speed of the plane?
a)
0.17 m/s
b)
6 m/s
c)
6 s 
d)
480 m/s
110.

Which of the following is the best refernce point for describing the motion of the planets in our solar system

a)

a space ship in orbit around the Earth

b)

the center of the Milky Way

c)

Earth

d)

Sun

111.

If an object moves in a line in such a way that every point of the object moves through the same distance in the same time.

a)

rotatory motion

b)

periodic motion

c)

translatory motion

112.

The motion of a cycle while taking a turn on the road

a)

curvilinear motion

b)

rectilinear motion

c)

oscillatory motion

113.

The mass found at the bottom of the pendulum is called a ________.

a)

bill

b)

boo

c)

bell

d)

bob

114.

The starting point used to describe the motion or position of an object.

a)

distance

b)

speed

c)

velocity

d)

reference point

115.

What is the formula to solve for distance of an object?

a)

d = s x t

b)

d = s/t

c)

d = t / s

116.

John is swimming at a speed of 1.6 m/s. He is swimming toward a boat floating on the water 500 m away. How long will it take John to reach the boat?

a)

312.5 seconds

b)

0.0032 seconds

c)

31.25 seconds

d)

0.032 seconds

117.

Sean is driving his car at a speed of 25 mph on Main Street in Red Lion. He caught all of the lights green so he traveled at a constant speed. He arrives at the Red Lion Area High School in 3.5 minutes (0.058 hour). How far away was Sean from the High School when he began his trip?

a)

1.45 miles

b)

87.5 miles

c)

7.14 miles

d)

0.14 miles

118.

Why do shadows made by the Sun move throughout the day?

a)

Because the weather changes

b)

Because someone moves the objects

c)

Because the sun appears to move across the sky

d)

Because it's magic!

119.

What two measurements are needed to calculate speed?

a)

mass and time

b)

temperature and mass

c)

time and distance

d)

distance and energy

120.

Lucy the Llama ran 50 meters in 10 seconds. What is Lucy's speed?

a)

50 meters

b)

5 meters per second

c)

1 second per meter

d)

10 seconds

121.

The marks on a sun dial show __________ intervals

a)

shadow

b)

time

c)

season

d)

marks

122.

The time taken by the pendulum to complete one oscillation is called ____________________

a)

interval

b)

to-fro

c)

time wave

d)

time period

123.

The to and fro motion of a pendulum is both oscillatory as well as periodic motion.

a)

True

b)

False

124.

Which of the following is not a device used to measure time?

a)

water clock

b)

analogue watch

c)

odometer

d)

sundial

125.

An ancient time measuring device SUNDIAL at Jantar Mantar is in ________________

a)

Ahmedabad

b)

Bombay

c)

Delhi

d)

Lucknow

126.

In modern wrist watch , time is measured by the vibrations of a ................crystals

a)

Quartz

b)

Diamond

c)

GOLD

127.

SI unit if time

a)

hour

b)

minute

c)

seconds

128.

A distance time graph has distance as .............

a)

x and Y axis

b)

x axis

c)

Y axis

129.

the S.I unit of speed is

a)

cm/s

b)

cm

c)

m

d)

m/s

130.

Speed =

a)

distance covered

b)

distance covered X time taken

c)

distance covered / time taken

d)

time taken / distance covered

131.

Motion of objects can be presented in pictorial form by their...............

a)

distance- speed graph

b)

distance-time graph

c)

time-time graph

d)

speed- distance graph

132.

When a body covers unequal distances in equal intervals of time then it is said to be in ............. motion

a)

uniform

b)

non uniform

c)

periodic

d)

vibratory

133.

The distance covered by an object in a ________ is called as the speed.

a)

Unit time

b)

Unit length

c)

Position

134.

The basic unit of speed is__________.

a)

m/s

b)

m/hr

c)

km/hr

135.

Earlier time measuring instrument

a)
b)
c)
136.

A simple pendulum consists of a _________ and thread suspended from a rigid stand.

a)
b)
c)
137.

The fact that the time period of a simple pendulum remains same is used in ............clock

a)

SUNDIAL

b)

SIMPLE

c)

PENDULUM

138.

The SI unit of speed

a)

m/s

b)

km/s

c)

km/hr

d)

m/hr

139.

SI unit if time

a)

hour

b)

minute

c)

seconds

140.

When the ….……… .of the body moving in straight line is constant, it is in uniform motion

a)

speed

b)

distance

c)

road

141.

Speed = distance * time

a)

TRUE

b)

FALSE

142.

Speedometer measures distance

a)

True

b)

False

143.

time period of simple pendulum depends on

a)

mass of bob

b)

volume of bob

c)

length of pendulum

144.

1 m/s =

a)

18/5 km/hr

b)

5/18 km/hr

145.

Which of the following graph represents body is at rest position?

a)
b)
c)
d)
146.

A bus travels 54 km in 90 minutes. The speed of the bus is...... m/s

a)

0.6

b)

10

c)

5.4

d)

3.6

147.

The distance covered by an object in a ________ is called as the speed.

a)

Unit time

b)

Unit length

c)

Position

148.

The time taken by the pendulum to complete ________ is called it's

time period .

a)

Ten oscillations

b)

One oscillation

c)

Five oscillations

149.

The basic unit of speed is__________.

a)

m/s

b)

m/hr

c)

km/hr

150.

Who invented the pendulum clocks?

a)

Galileo Galilie

b)

James Watt

c)

Albert Einstein

151.

Earlier time measuring instrument

a)
b)
c)
152.

S.I unit of time

a)

s/m

b)

m/s

c)

km/h

d)

m/mm

153.

The time period of a simple pendulum is the time taken by it to travel from

(a) A to B and back to A

(b) O to A, A to B and B to A

(c) B to A, A to B and B to O

(d) A to B

a)

a)

b)

b)

c)

c)

d)

d)

154.

A simple pendulum takes 42 sec. to complete 20 oscillations. What is its time period?

(a) 2.1 s

(b) 4.2 s

(c) 21 s

(d) 8.40 s

a)

a)

b)

b)

c)

c)

d)

d)

155.

A ………………… is one billionth of a second.

a)

second

b)

microsecond

c)

nanosecond

d)

minute

156.

Boojho walks to his school which is at a distance of 3 km from his home in 30 minutes. On reaching he finds that the school is closed and comes back by a bicycle with his friend and reaches home in 20 minutes. His average speed in km/h is

a)

8.3

b)

7.2

c)

6.3

d)

9.2

157.

Speed =

a)

distance covered

b)

distance covered X time taken

c)

distance covered / time taken

d)

time taken / distance covered

158.

When a body covers unequal distances in equal intervals of time then it is said to be in ............. motion

a)

uniform

b)

non uniform

c)

periodic

d)

vibratory

159.

Earlier time measuring instrument

a)
b)
c)
160.

In modern wrist watch , time is measured by the vibrations of a ................crystals

a)

Quartz

b)

Diamond

c)

GOLD

161.

A distance time graph has distance as .............

a)

x and Y axis

b)

x axis

c)

Y axis

162.

Device used to measure speed of a car is

a)

graph

b)

odometer

c)

speedometer

d)

none

163.

What can you depict from the graph?

a)

object is in uniform motion

b)

object is in non uniform motion

c)

object has constant speed

d)

object is stationary

164.

In which place is sundial there?

a)

Delhi

b)

Mumbai

c)

hydrebad

d)

KOLKATA

165.

how many sun dials are there in India?

a)

1

b)

5

c)

2

d)

3

166.

The basic unit of time is

a)

hour

b)

second

c)

minute

d)

metre

167.

The basic unit of speed.

a)

metre/second

b)

min/metre

c)

km/s

d)

hour/second

168.

The meter that measure the distance moved by the vehicle is called as

a)

speedometer

b)

odometer

169.

simple pendulum is an example of _________

a)

linear motion

b)

circular motion

c)

periodic motion

d)

rotational motion

170.

The symbols of all units are written in singular

a)

True

b)

False

171.

one hour is equal to

a)

60s

b)

3600s

c)

360s

d)

120s

172.

The distance between two bus stops is 50 km. A bus takes 2 hour time to cover this distance . calculate the speed.

a)

25m

b)

25km/h

c)

100m/s

d)

100s

173.

A simple pendulum takes 40s to complete 20 oscillation. What is the time period of the pendulum?

a)

2s

b)

2m

c)

40s

d)

40m

174.

The graphical representation of uniform motion of an object

a)

Linear graph

b)

Curved graph

c)

Parallel graph

d)

Both a and b

175.

A car moves with a speed of 40km/h for 2 hour what is the distance covered by the object?

a)

20km/h

b)

80km/h

c)

80km

d)

20km

176.

If we denote speed by S, distance by D and time by T, the relationship between these quantities is

a)

S=D/T

b)

S=T/D

c)

D=T/S

d)

S=DXT

177.

The time period of a simple pendulum depends upon its

a)

Bob

b)

Length

c)

Both a and b

d)

None of these

178.

Which of the following cannot be used for measurement of time?

a)

Simple pendulum

b)

Shadow of an object during the day

c)

Clock

d)

Blinking eyes

179.

Which axis represents the term distance

a)

X – axis

b)

y – axis

c)

both x and y axis

d)

none of these

180.

Boojho walks to his school which is at distance of 3 km from his home in 30 minutes. On reaching he finds that the school is closed and comes back by a bicycle with his friend and reaches home in 20 minutes . what is the total distance covered by Boojho?

a)

50 minutes

b)

3 km

c)

30 minutes

d)

6 kilo meter

181.

Time between one sunrise and the next sunrise was called as

a)

day

b)

month

c)

year

d)

hour

182.

In a simple pendulum, the metallic ball suspended by thread is called its -----

a)

Mean position

b)

Bob

c)

String

d)

Pendulum

183.

Faster vehicle has a higher speed?

a)

True

b)

False

184.

All the clocks make use of some periodic motion

a)

true

b)

false

185.

Age of a person is expressed in days

a)

True

b)

False

186.

A car moves with a speed of 80 km/h for 15 minutes and then with a speed of 60km/h for the next 15 mins. The total distance covered by the car is

a)

100 km

b)

50km

c)

35km

d)

70km

187.

The value of 2km/h is equal to

a)

4/9 m/s

b)

5/9 m/s

c)

13/9 m/s

d)

7/9 m/s

188.

The meter that is used to measure speed of a vehicle is

a)

Speedometer

b)

Odometer

c)

Anemometer

d)

Thermometer

189.

The meter that measures the distance moved by a vehicle is

a)

Speedometer

b)

Odometer

c)

Anemometer

d)

Thermometer

190.

36km/h can also be expressed as

a)

10m/s

b)

3.6m/s

c)

100m/s

d)

36m/s

191.

Which of the following is a scalar quantity ?

a)

Distance

b)

Displacement

c)

Velocity

d)

Force

192.

A bus travels 54 km in 90 minutes. The speee of the bus is

a)

0.6m/s

b)

10m/s

c)

5.4m/s

d)

3.6m/s

193.

A simple pendulum takes 42 sec. to complete 20 oscillations.what is its time period?

a)

2.1s

b)

4.2s

c)

21s

d)

8.40s

194.

Nearly all the clocks make use of

a)

Straight line motion

b)

Periodic motion

c)

Random motion

d)

Circular motion

195.

Time period of a simple pendulum depends upon its

a)

Weight of bob

b)

Length

c)

Both a and b

d)

None of these