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Syllabus

DIFFERENTIATE BETWEEN SCALAR AND VECTOR QUANTITIES .

1. less than one 2. greater than one 3. equal to one 4. greater than or equal to one

5 examples of uniform and Non-uniform motion.??

what is the formula for retardationlist 10 scalar and 10 vector quantities related to motion.

a) A car travels along a straight road 100m east and then 50m west. Find the distance and displacement of the car

b) A worker covers a distance of 40km from his house to his place of work and 10km towards his house back. Then the displacement covered by the worker in the whole trip is?

What is the full form of CGS and SI?

1. positive , positive 2. positive , negative 3. negative , negative 4. negative , positive

give 5 examples of uniform circular motion ?

a boy is running on a straight road.he runs 500 m towards north in 2 min 10 seconds and then turns back and runs 200m in 1 minute. calculate his average speed and magnitude of average velocity during first 2 minutes 10 seconds

Please explain the derivation of the equations of motion by graphical method.

a) Uniform acceleration

b) Non Uniform acceleration

c) Retardation

d) Constant speed

No link please.

derive the third equation of motion : v

^{2}- u^{2}=2as1) A scooter moving with a speed of 300m per 1 minute

2) A car moving with a speed of 36 km per hour

A particle is moving in a circle of diameter 20m.What is its distance and displacement after i)1.5 rounds ii)2 rounds?

give 5 examples of uniform acceleration.

Can a body have zero velocity and still acceleration? give examples,

Please answer by 7:30 pm today?

if momentum of a body increases by 20 percent, then percentage increase in its kinetic energy is...

how to draw the distance - time graph for activity 8.9 and activity 8.10 in page number 106 and 107

Derive the following equations of motion graphically-

1) v = u + at

2) s = ut + 1/2at

^{2}a) Define uniform acceleration. What is the acceleration of the body movingwith uniform velocity?b) A particle moves over three quarters of a circle of radius r. What is themagnitude of its displacement?

derivation - equation of motion by graphical method

Can u give me 9th cbse fa1 sample paper

a body can have zero average velocity but not zero average speed . justify

what are the difference between uniform linear and uniform circular motion? explain with example.

Angle between two coplanar vectors r1 and r2 is theta and |r1|=|r2|. What is the inclination of their resultant with the vectors r1 and r2.

differentiate between distance and displacement

A) 7:5:3 B) 3:5:9

C) 5:3:7 D) 5:7:3

Uniform circular motion is an accelerated motion . JUSTIFY THIS STATEMENT

Can the displacement be greater than the distance travelled by an object ?

What is the basic difference between Motion and Rest ?

a body covers one complete revolution around a circular path of circumference 176m in 4 minutes . find the displacement of the body after 6m.

A body is moving along a circular path of radius(R). What will be the distance and displacement of the body when it completes half revolution?

Q18A body starts from rest and moves with a uniform acceleration of 5m/s^{2}for 5s and then it moves with a constant velocity for 4s. Later it slows down and comes to rest in 5s. Draw the velocity graph for the motion of the body and answer the following questions:a. What is the maximum velocity attended by the body?

b. What is the distance travelled during this period of acceleration?

c. What is distance travelled when the body was moving with constant velocity?

d. What is the retardation of the body while slowing down?

e. What is the distance travelled by retarding?

f. What is the total distance travelled?

ABDUL WHILE DRIVING TO SCHOOL COMPUTES THE AVERAGE SPEED FOR HIS TRIP TO BE 20 KM/HOUR. ON HIS RETURN TRIP ALONG THE SAME ROUTE , THERE IS LESS TRAFFIC AND THE AVERAGE SPEED IS 30 KM/HOUR. WHAT IS THE AVERAGE SPEED FOR ABDUL'S TRIP?

state four differences between distance and displacement

What is the nature of the displacement versus time graph for non uniform motion ? Give an example.

Please answerDifference between uniform and non - uniform motion.

Sound is heard after 2 second, the lightning is seen in the sky during a cloudy day. Find the distance of the location of lightning if speed of sound is 346 m/s????

give an example to show that displacement can be negative?

S=ut+1/2at

^{2 }prove by graphical method.explain different types of motion with dailylife examples.

On a 200 km track, a train travels the first 50 km at a uniform speed of 40 km/h .How fast the train must travel the next 150 km so as to maintain the average speed of 60 km/h for the whole journey?example for acceleration against the direction of motion

3 difference between fundamental and derived physical quantities

It takes 6 minutes for the signal sent by an artificial satellite orbiting around the earth to reach the ground station . Calculate the distance of the artificial satellite from the ground station . The signal travels at a speed of the light that is 3×10 raised to 8 m/s

rest and motion are relative terms. Explain.

An object is moving along x-axis in such a way that its displacement is given by x=30 + 20t^2 where, x is in metres and t is in seconds.

(a) Find the velocity and acceleration.

(b) What is the initial position and the velocity of the object?

1.The numerical ratio of displacement to distance for a moving object is:

a)always less than 1

b)always equal to 1

c)always grater than 1

d)equal to or less than 1

explain too...

give some examples of accelerated motion in everyday life

a body starts from rest and moves along a straight line. it is uniformly accelerated at a rate of 20m/s2 for 10 sec. for next 20 sec the body moves with uniform velocity . then a negative acceleration of 2m/s2 acts on a body till the body comes to rest again. draw a velocity time graph for the enitre motion

Under what condition is the magnitude of average velocity of an object equal to it's average speed?

a. acceleration in first 6 s

b. distance travelled from 4s to 8 s

c. acceleration from 8s to 10s

d. total distance travelled.

A ball is dropped on the floor from the height of 10m. It rebounds to a height of 2.5m. If the ball is in contact with the floor for 0.01 seconds, what is the average acceleration during contact ?

Derive the equation :

^{2}1. Distinguish between distance and displacement for

a) an object moving along a straight line

b)an object moving in a plane

2. Give an example where the speed on object first increases,then remains constant for some time,and then decreases.

3.A girl bends to touch her toes.Is the motion of her head an example of uniform motion or accelerated motion.Explain.

EXPLAIN WHETHER THE WALLS OF A CLASSROOM ARE AT REST OR IN MOTION?

A train starting from rest attains a velocity of 72 km/h in 5 minutes. Assuming that the acceeration is uniform. Find the acceleration and the distance traveed by the train for attaining this velocity.

Q what is the displacement of a satilite when it makes a complete round along around its circular path of radius. caculate its distance and displacement in its half of perdioc time?

draw a velocity versus time graph of a stone thrown vertically upwards with a velocity v and then coming downwards after attaining the maximum height.

Q). Consider the following statements about the blocks shown in the diagram that are being pushed by a constant force on a frictionless table:

(I) All block moves with the same acceleration

(II) The net force on each block is the same

(A) I only

(B) II only

(C) both I and II only

(D) neither I nor II

What is To and Fro Motion? Explain with examples.please show solved answer

Difference between mass and weight

a body is moving with a velocity of 15m/s .if the motion is uniform,what will be the velocity after 10 seconds?

in a circular track (distance 400 m) an athelete runs 1/4 th of the ground .. so what would be the displacement????

A body covers 4m in 3^{rd}second and 12m in 5^{th}second. If the motion is uniformly accelerated, how far will it travel in the next 3 seconds?what are the full forms of v, u, at, s, in chapter 8 motionAn electric train is moving with a velocity of 120 km/ hr. How much distance will it move in 30 seconds.

what are the similarities between distance and displacement ?A train covers half of its journey with a speed of 30m/s and other half with a speedof 40m/s. Calculate the average speed of the train during the whole journey.

Give two examples of bodies having non-uniform motion

what is the shape of the path of a body when it is in uniform motion

A car starts from rest and accelerates uniformly for 10 s to a velocity of 8 m/s. It then runs at a constant velocity and is finally brought to rest in 64 m with a constant retardation. The total distance covered by the car is 584 m. Find the value of acceleration, retardation and total time taken.

what type of motion uniform or non-uniform is exhibited by a freely falling body? give reasons for your answer

A car accelerates uniformly from 18 km/h to 36 km/h in 5 seconds.

calculate the -

a)acceleration

b)distance covered by the car

The table given below shows distance (in cm) travelled by the bodies A, B and C Read the data carefully B and C Read the data carefully and answers the questions which follow: Time Body A Body B Body C 1st Second 20 20 20 2nd Second 20 36 60 3rd Second 20 24 100 4th Second 20 30 140 5th Second 20 48 180 a) Which of the bodies is moving with: i) Constant speed ii) Constant acceleration b) Which of the three bodies covers :- i) Maximum distance in third second ii) Minimum distance in third second c) Which of the body is moving with non- uniform acceleration d) Sketch a distance- time graph for motion of I) Body A ii) Body C e) How much distance is covered by body C in 5s f) How much distance is covered by body B in last 3s g) Which of the bodies covers least distance in first three second

A body travels 200cm in the 1st 2 s and 220cm in the next 5 s.Calculate the velocity at the end of 7th second from start ? It's answer is 2.22 m/s

Calculate the acceleration of a body which starts from rest and travels 87.5m in 5sec???