Select Board & Class
DIFFERENTIATE BETWEEN SCALAR AND VECTOR QUANTITIES .
5 examples of uniform and Non-uniform motion.??
what is the formula for retardation
list 10 scalar and 10 vector quantities related to motion.
What is the full form of CGS and SI?
give 5 examples of uniform circular motion ?
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
Please explain the derivation of the equations 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?
derive the third equation of motion : v2 - u2 =2as
Ram hired a 3 wheeler from bus stand to his house. The driver A of 3 wheeler followed the shortest path and reached the destination in 1/2 an hour and charged Rs 50 from Ram. On the same day Ram's sister also came her house after attending a function in other city. She also came hired a 3 wheeler the diver B of 3 wheeler took an hour to reach and charged Rs 150 from her.
a) Is the displacement , between Bus stand and Ram house is same in both case?
b) What value are shown by A ?
give 5 examples of uniform acceleration.
Can a body have zero velocity and still acceleration? give examples,Please answer by 7:30 pm today
Can the displacement be greater than the distance travelled by an object ?
if momentum of a body increases by 20 percent, then percentage increase in its kinetic energy is...
when a graph of one quantity versus another results in a straight line the quantities are:
a.] both constant
c.] directly proportional
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 + 1/2at2
derivation - equation of motion by graphical method
Can u give me 9th cbse fa1 sample paper
Abdul while driving ti school 'computes the average speed for his trip to be 20km/hr.on his return trip along the same the same route,there is less traffic and the average speed is 30 km/hr.what is the average speed of Abdul's trip?
what are the difference between uniform linear and uniform circular motion? explain with example.
differentiate between distance and displacement
at a time when it is cloudy .there may be frequent thunder and lighting .the sound of thunder take some time to reach you after you see the lighiting.
can you answer why this happen.measure this time interval using the digital wrist watch and stop watch.calucalate the distance of lighting nearing point, speed of sound in air is 346m/sec
Uniform circular motion is an accelerated motion . JUSTIFY THIS STATEMENT
Ques- The brakes applied to a car produce an acceleration of 6ms sq in the opposite direction to the motion. if the car takes 2s to stop after the application of brakes, calculate the distance it travels during this time.
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?
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
state four differences between distance and displacement
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
Difference between uniform and non - uniform motion.
give an example to show that displacement can be negative?
how do we measure magnitude of displacement from a v-t curve?
S=ut+1/2at2 prove by graphical method.
in a circular track (distance 400 m) an athelete runs 1/4 th of the ground .. so what would be the displacement????
explain different types of motion with dailylife examples.
An electric train is moving with a velocity of 120 km/ hr. How much distance will it move in 30 seconds.
example for acceleration against the direction of motion
3 difference between fundamental and derived physical quantities
give one example of each :
1. acceleration is in the direction of motion
2. acceleration is against the direction of motion
3. acceleration is uniform
4. acceleration is non uniform
rest and motion are relative terms. Explain.
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
Q18A body starts from rest and moves with a uniform acceleration of 5m/s2 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?
give some examples of accelerated motion in everyday life
Under what condition is the magnitude of average velocity of an object equal to it's average speed?
a body can have zero average velocity but not zero average speed . justify
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 :
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.
a boy hits a football high up into d air. He runs and catches d football before it hits d ground. Which of two, d boy or d football has greater displacement?
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.
What is the nature of the displacement versus time graph for non uniform motion ? Give an example.
What is To and Fro Motion? Explain with examples.
Difference between mass and weight
An object moving with a speed of 5 m/s comes to rest in 10 s, after the brakes are applied. What is the initial velocity?
A body covers 4m in 3rd second and 12m in 5th second. If the motion is uniformly accelerated, how far will it travel in the next 3 seconds?
An object is dropped from a height of 120m. The acceleration of the object is 10m/s2 downwards. Find the distance travelled by the object after (a)1s (b)2s and (c) 3s. What is the vilocity of the object after 3s?
what are the similarities between distance and displacement ?
Name the physical quantity that corresponds to the rate of change velocity????
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.
A car moving with a certain velocity comes to a halt if the retardation was 5m/s2. Find the initial velocity of the car.
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 -
b)distance covered by the car
Q what advantages does a graph have over a table having the same information in the form of numbers?
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
Copyright © 2021 Aakash EduTech Pvt. Ltd. All rights reserved.
E.g: 9876543210, 01112345678
We will give you a call shortly, Thank You
Office hours: 9:00 am to 9:00 pm IST (7 days a week)