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Syllabus

DIFFERENTIATE BETWEEN SCALAR AND VECTOR QUANTITIES .

what is the formula for retardation5 examples of uniform and Non-uniform motion.??

list 10 scalar and 10 vector quantities related to motion.

on a position time graph.draw three lines/curves to represent the motion of the object:-

(a)remaining at rest.

(b)moving slow.

(c) Moving fast.

What is the full form of CGS and SI?

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

give 5 examples of uniform circular motion ?

What is To and Fro Motion? Explain with examples.Please explain the derivation of the equations of motion by graphical method.

derive the third equation of motion : v

^{2}- u^{2}=2asdefine uniform acceleration derive the following equations considering uniform acceleration-s=ut+(1/2)a(t*t) and (v*v)-(u*u)=2as

can a particle be acclerated:-

a) if its speed is constant.

b) if its velocity is constant.

Give Reason.

give 5 examples of uniform acceleration.

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

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

Please answer by 7:30 pm todayif momentum of a body increases by 20 percent, then percentage increase in its kinetic energy is...

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

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}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

derivation - equation of motion by graphical method

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?

Can u give me 9th cbse fa1 sample paper

when a graph of one quantity versus another results in a straight line the quantities are:

a.] both constant

b.] equal

c.] directly proportional

d.]inversely proportional

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

differentiate between distance and displacement

A TRUCK IS MOVING WITH A VELOCITY OF 72 km/h AND IT TAKES 3s TO STOP AFTER THE BRAKES ARE APPLIED . CALCULATE THE FORCE EXERTED BY BRAKES . MASS OF TRUCK IS 1200 kg.

PLS ANSWER FAST. URGENT

Uniform circular motion is an accelerated motion . JUSTIFY THIS STATEMENT

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 the basic difference between Motion and Rest ?

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?

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

Explain whether force is balanced or unbalanced force

1) a suitcase is dropped from certain height.

2) Biscle is moving in straight line with constant velocity.

3) In game of tug of war , the two teams apply force but the rope does not move

4) a ball rolling on ground stops after sometime.

Difference between uniform and non - uniform motion.

give an example to show that displacement can be negative?

An object thrown upwards reaches the highest point in 5s . Find the velocity with which it ws thrown . Also find the displacement ... Pls ans .... 2mrw is ma exam ......

S=ut+1/2at

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

a) Uniform acceleration

b) Non Uniform acceleration

c) Retardation

d) Constant speed

No link please.

example for acceleration against the direction of motion

can the equation v = u+at be used for a particle moving with nonuniform acceleration ?

3 difference between fundamental and derived physical quantities

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.

rest and motion are relative terms. Explain.

1) A scooter moving with a speed of 300m per 1 minute

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

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

Dispersion

Tyndall effect

Brownian movement

Oscillation

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

(a) speedometer (b) odometer

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

Why is the motion of a circulating fan non-uniform?

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.

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.

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

Difference between mass and weight

for a moving object, derive graphically relation between final velocity v, initial velocity u, acceleration a and time time t.a body can have zero average velocity but not zero average speed . justify

Q17. Velocity of a particle moving along a straight line varies with time as shown in the adjacent figure. Net forces acting on the particle are F

_{1}, F_{2}, F_{3}, F_{4}, and F_{5}in the intervals OA , AB , BC, CD and DE respectively. Identify the correct statement(a) F

_{1}increased with time.(b) F

_{5}_{ }is initially positive and then becomes negative(c) F

_{1}and F_{2}are in opposite directions(d) F

_{3}is negative.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?A car is moving on a straight road with a speed of 20 m/s .At t = 0 ,the driver of car applies the brakes after watching and obstacle 150 m ahead .After application of brakes ,the car retards with 2m/s

^{2}.Find the position of car from the obstacle at t = 15 secAn electric train is moving with a velocity of 120 km/ hr. How much distance will it move in 30 seconds.

all cars r provided with seat belts why?

what are the similarities between distance and displacement ?Give two examples of bodies having non-uniform motion

What is the momentum of a body of mass 200g moving with a velocity of 15m/s?

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.

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

what are the full forms of v, u, at, s, in chapter 8 motionA car accelerates uniformly from 18 km/h to 36 km/h in 5 seconds.

calculate the -

a)acceleration

b)distance covered by the car

A particle moves along a straight line with a constant acceleration a = +0.5 m/s 2 At t= 0 it is at x = 0, and its velocity is v = 0. Plot the velocity-time and position-time graphs for the period t = 0 to t = 5 s.