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Syllabus

Iwant any 10 organism and their respiratory organ

what is the difference between ODOMETER and SPEEDOMETER ???

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

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

What type of motion:

1. Soldiers ina march past.

2. Motion of a pendulum

define electromagnet

1.Rajdhani express takes 3 hrs to cover 315 km. Shatabdi express takes 6 hours to cover the distance of 600 km. Find the speed of both the express trains. Which express train will cover the distance of 400 km in less time?

2.The odometer of can reads 10532.0 km at the start of journey and at end it reads 10850.0 km. If car takes 12 hour to complete its journey. Then calculate its average speed in km/hr, km/min and km/s.

why do we need to measure time?

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.

Define:-1) linear motion2)Circular motion3)periodic motion4)Oscillatory Motion5)Rotational motionWhen an object covers equal distance in unequal intervals of time, its speed is said to be ________

Difference between uniform motion & non-uniform motion?

Give any 2 examples of periodic motion to measure time.

At 7:00 a.m the odometre of the car reads 25777.what is the distance covered by the car and its speed when the clock reads 9:15 a.m and the odometre reads 25867?

What is oscillatory motion?

An ant is moving around a book, as shown in the given figure. It travels around the book once in every five minutes.

What is the ant’s average speed?

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 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?

With the help of the speedometer reading of a vehicle would be able find the distance travelled if the time is known ?

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

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

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

A simple pendulum takes 20 seconds to complete 10 oscillations.

What is the time period of the pendulum?

define periodic events

a simple pendulum takes 32 s to complete 20 oscillations wat is the time period of a 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.

Distance[m]:0 5 10 15 20 25

time[s]:0 2 4 6 8 10

[a]Draw a distance-time graph for the car.

[b]what conclusion do you get from this graph about the nature of motion of the car?

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

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

The distance between Paula’s house and her school is 12 km. The distance between her school and the public library is 6 km, whereas the distance between the public library and her house is 15 km.

Paula reaches her school from home in half an hour and then takes another 15 minutes to reach the public library. She further takes 15 minutes to come back home from the public library.

What was Paula’s average speed during the entire trip?

2. pendulum is the mother of watches and clocks

3. we need to measure

mcq questions tracing changes through a thousand years online

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?

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

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

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.

1.Anobject travels 16min 4s and then another 16m in 2s. what is the average speed of object???can you say me what are sundials, water clocks,and sand clock?

A cyclist is travelling with a uniform speed on a straight road. After traveling 700 m, one of the tyres of the cycle got punctured. He decided to cover the rest of the distance (300 m) by walking with the cycle. He covers the remaining 300 m in 7 minutes.

If the cyclist takes a total of 12 minutes to complete his journey, then what is his average speed during the journey?

23.81 m/min

61.28 m/min

83.33 m/min

97.48 m/min

a labelled diagram of simple pendulum and explain briefly

Why it is necessary to find the distance travelled every few seconds while making the distance timegraph?

a 108 km/hr into m/s

b 40 m s to km/hr

CAN ANYBODY EXPLAIN ME STRUCTURE OF MATTER

what are the importance of distance time graph?

a person goes to a market makes purchases and comes back at a constant slower speed . draw displacement time and velocity time graphs of the person

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

what are the quantities that can be measured called ?If the length of a pendulum is increased four times, its time period will become

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 deviceWhat do you mean by

Slow motionandFast motion?When 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.

DEAR EXPERTS

What is quartz crystal ?