# Speed vs Velocity

## Trending Questions

**Q.**The bob of a simple pendulum takes 1 second to go from one extreme position to the mean position. What is the time period of the simple pendulum?

- 4 s
- 6 s
- 8 s
- 2 s

**Q.**

What does it mean when a pendulum swings back and forth?

**Q.**

If a body covers three equal distances with speeds${v}_{1}{v}_{2}and{v}_{3}$_{ }then what is the average speed of the body?

**Q.**

The vibrations of a simple pendulum are also known as _________.

**Q.**

What is meant by one oscillation of a simple pendulum?

**Q.**Speed is related to displacement while velocity is related to distance.

- True
- False

**Q.**Rishi walks to his school which is at a distance of 4.5 km from his home in 45 minutes. On reaching he finds that the school is closed and comes back by bus and reaches home in 15 minutes. Find his average speed in km/h.

- 3
- 9
- 6
- 4.5

**Q.**

Two persons X and Y take $10hours$ and $12hours$ respectively to travel from Bangalore to Hyderabad, then the

average velocity of X is equal to the average velocity of Y.

average velocity of X is less than that of Y.

average velocity of X is more than that of Y.

We cannot compare their velocities.

**Q.**

A motorist traveled 190 km in 5 hours. His average speed for first 100 kilometres was 50 km/h. What was his average speed for the second 90 kilometres?

15 km/h

20 km/h

40 km/h

30 km/h

**Q.**

A person travelling with you in a bus is at rest. Do you agree with the statement?

**Q.**36 kmph =

- 4 m s−1
- 10 m s−1
- 9 m s−1

**Q.**

A bicyclist travels $21$miles in $1$hours and $45$minutes. What is her average velocity during the entire $1\frac{3}{4}$ hour time interval?

**Q.**

A car takes 4hrs to travel from Bangalore to Chennai whereas the flight takes only 30min to travel from Bangalore to Chennai. If the distance from Bangalore to Chennai by road is 400km and by air is 150km. Calculate the average speed and average velocity of flight and car.

The shortest distance between Banglore and Chennai is same as the distance by air.

Answer in the given order (in kmhr ):

Find the Average speed of Flight, the Average velocity of flight, the Average speed of the car, the Average velocity of the car.

300 , 300, 37.5 , 100

300 , 37.5, 100 , 100

300, 300, 200, 100

300, 300, 100, 37.5

**Q.**A boy starts from a point O and travels 50m in 30s. He returns back to the same point O in 20s. Calculate the average velocity of the boy.

- 1 ms−1
- 0 ms−1
- 2 ms−1
- 5 ms−1

**Q.**Avinash walks to his school which is at a distance of 3 km from his home in 30 minutes. On reaching he finds that the school is closed and comes back by bicycle with his friend and reaches home in 20 minutes. His average speed in km/h is

- 8.3
- 7.2
- 5
- 3.6

**Q.**36 kmph =

- 4 m s−1
- 10 m s−1
- 9 m s−1

**Q.**An auto travels for time 'T'. It travels with a uniform speed u in the first half and with a uniform speed of v in the second half of the given time interval. What will be the average speed of the train in the given time interval time 'T'?

- u+v2
- uv2
- 2uv
- uv

**Q.**36 kmph =

- 4 m s−1
- 9 m s−1
- 10 m s−1

**Q.**A car travels from point 'A' to point 'B' which are 160 km apart in 3 hours. The car comes back to point 'A' in 2 hours. Calculate the average speed of the car.

- 0 kmh−1
- 16 kmh−1
- 64 kmh−1
- 8 kmh−1

**Q.**Rate of change of displacement is called ________.

- speed
- velocity
- distance
- acceleration

**Q.**

A girl is cycling and she covers 0.5 km in 2 minutes, next 0.75 km in 3 minutes and last 1 km in 4 minutes. Select the options that correctly mention her average speed.

4.16 m s−1

0.25 m s−1

0.25 km min−1

4.16 km min−1

**Q.**

A car takes 4hrs to travel from Bangalore to Chennai whereas the flight takes only 30min to travel from Bangalore to Chennai. If the distance from Bangalore to Chennai by road is 400km and the air is 150km. Calculate the average speed and average velocity of flight and car. ( For flight, distance and displacement can be taken as equal)

Answer in the given order (in km/hr ):

Find the Average Speed of Flight, Average velocity of Flight, Average speed of car, Average velocity of car respectively.

300 , 300, 37.5 , 100

300 , 37.5, 100 , 100

300, 300, 200, 100

300, 300, 100, 37.5

**Q.**A body goes from C to D with a velocity of 20 ms−1 and comes back from D to C with a velocity of 30 ms−1. The average velocity of the body during the whole journey is _______.

- 25 ms−1
- 0
- 20 ms−1
- 21 ms−1

**Q.**

Which of the following statements is false?

If the speed of a body is zero, then its velocity also must be zero.

If average velocity of a body is zero, then its average speed need not be zero.

If the speed of a body is constant, then its velocity must be constant.

If the velocity of a body is constant, then its speed must be constant.

**Q.**Rishi walks to his school which is at a distance of 4.5 km from his home in 45 minutes. On reaching he finds that the school is closed and comes back by bus and reaches home in 15 minutes. Find his average speed in km/h.

- 6
- 4.5
- 3
- 9

**Q.**Avinash walks to his school which is at a distance of 3 km from his home in 30 minutes. On reaching he finds that the school is closed and comes back by bicycle with his friend and reaches home in 20 minutes. His average speed in km/h is

- 8.3
- 7.2
- 5
- 3.6

**Q.**Two trains moving in the same direction with the same speed will be :

- At rest with respect to each other.
- In motion with respect to each other.
- At rest with respect to an observer standing outside the train.
- In motion with respect to an observer standing outside the train.

**Q.**A car travels from Bangalore to Mumbai and returns back in 20 hours. What is the average velocity and average speed of the car if odometer reading of the car, when it started was 2200 km and when finished was 3800 km?

- Average Velocity = 0 kmph,

Average Speed =0 kmph - Average Velocity = 0 kmph,

Average Speed = 80 kmph - Average Velocity = 80 kmph,

Average Speed = 0 kmph - Average Velocity = 80 kmph,

Average Speed = 80 kmph

**Q.**

Write the following steps in sequence to determine the time period of a simple pendulum.

(A) Start the stopwatch when the bob is at the mean or extreme position and find the time taken by the pendulum to complete 20 oscillations.

(B) Take a simple pendulum of length (l) and a stopwatch.

(C) Move the bob of the pendulum to one side and release it.

(D) Divide the time taken for 20 oscillations by 20 and obtain the time period (T) of the simple pendulum.

BCAD

ACBD

CDAB

DACB

**Q.**An insect moves along the sides of a wall of dimension 12 m×5 m, starting from one corner and reaches the diagonally opposite corner. If the insect takes 10 s for its motion, then find the ratio of the average speed to the average velocity of the insect.

- 17:13
- 13:17
- 13:5
- 17:12