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Syllabus

Iwant any 10 organism and their respiratory organ

what is the difference between ODOMETER and SPEEDOMETER ???

a car moves with a speed of 40km/h for 15 minutes then with a speed of 60 km/h for next 15 minutes.find the total distance covered by the car in these 30 minutes.

why do we multiply 5/18 or 18/5 when we convert?

why do we need to measure time?

define electromagnet

What type of motion:

1. Soldiers ina march past.

2. Motion of a pendulum

The rotation of the earth on its axis is periodic motion but not oscillatory. why?

Define:-1) linear motion2)Circular motion3)periodic motion4)Oscillatory Motion5)Rotational motionDifference between uniform motion & non-uniform motion?

Give any 2 examples of periodic motion to measure time.

a] a cyclist on straight plane road

b] a plucked string of sitar

c]tip of the hand of clock

d]earth moving around sun

e]a stone falling from certain height

f]a swing

What is oscillatory motion?

what do you mean by multiple motion and give some examples

pl do answer i have my test on this friday

What are the disadvantages of sand clock or hourglass

what are the importance of distance time graph?

what is the main limitations of sundials ?

define motion and periodic motion

The discovery of which principle made the accurate measurment of time possible? What is the principle?

what is basic unit of speed?

Identifythetypesofmotionineachcase:Example of motionTypes of motionAlong a straight line|circular|periodicSoldiers in a march past

Bullock cart moving on a straight road

Hands of an athlete in a race

Pedal of a bicycle in motion

Motion of the earth around the sun

Motion of a swing

Motion of a pendulum

If the length of a pendulum is increased four times, its time period will become

Plot a distance-time graph for a body travelling at a speed of 2.5m/s.

How does a waterclock work? Withdaiagramorpicture.a simple pendulum takes 32 s to complete 20 oscillations wat is the time period of a pendulum?

A simple pendulum takes 20 seconds to complete 10 oscillations.

What is the time period of the pendulum?

define motion ? there are how many types of motion define them by using examples

what os the difference between speedometer and odometer?how these can be used? any two examples.

How do we find acceleration and retardation from the graph??

Q.A honey bee starts from its comb at 10 am to collect nectarfrom a flower that is 250 metres away.It takes 10 minutes to reach the flower.If bee spends about 15 minutes to collect the nectarfrom the flower.It takes about 12 minutes to reach to its comb.Represent the journey of the bee in a distance time graph.2. pendulum is the mother of watches and clocks

3. we need to measure

Why do you think accurate measurement of time became possible much after accurate measurement of length and mass ?

THE SWING OF A PENDULUM GRADUALY DECREASES WITH TIME HOWEVER EVEN THEN IT IS REGARDED AS A RELIABLE TIME KEEPING DEVICE WHY

mcq questions tracing changes through a thousand years online

what property of a simple pendulum makes it useful in measuring time?

A car moves with a speed of 40 km/h for 15 minutes and then with a speed of 60 km/h for the next 15 minutes.What is the total distance covered by the car?

a cheetah runs adistance of 200m in 10sec .what is the speed of cheetah in km/hr?

1.Anobject travels 16min 4s and then another 16m in 2s. what is the average speed of object???Into

Km/secs

Km/hr.

a 108 km/hr into m/s

b 40 m s to km/hr

give reason: time measured by quartz clocks is much more accurate than that by the clocks avilable earlier

a labelled diagram of simple pendulum and explain briefly

how the time was measured when pendulum clocks were not available

Measuring time is more difficult than measuring length.Do you agree ? Give reasons

please explain in detailRiaz takes 20 minutes to travel to his school with a speed of 3 m/s. How far is the school ?a) a man, waiting for a bus, standing at one point, on a bus-stand.

b) a man, walking on a level, straight and narrow road, with a constant.

accurate measurements of distance , mass and so on were made much before accurate measurement of time became possible why?

the swing of a pendulum gradually decreases with time . however , even then it is regarded as a reliable time keeping deviceWhen an object moves on a straight line with a constant speed it is called a uniform motion. Then , if an object ic moving on circular path with a constant speed is it also be known as uniform motion ? explain.

What do you mean by

Slow motionandFast motion?DEAR EXPERTS

What is quartz crystal ?

what are the quantities that can be measured called ?Kiran is driving her car at a speed of 48 km/h. how much distance will she cover in

(A) one minute?

(B) ten seconds?