Speed Vs Slow

Q.

Define speed. What is the SI unit of speed?

Q.

A bike travels 80 km with the speed of $40kmph$ and another 60 km with the speed of $30kmph$. Find the average speed of the bike.

1. $30kmph$

2. $35kmph$

3. $40kmph$

4. $45kmph$

Q. A boy takes $2$ hours to reach his school from the house which is $3km$ away from it and takes $90$ minutes to come back from school to his house. Calculate the average speed of the boy.

1. $\text{Average speed}=11m{s}^{-1}$
2. $\text{Average speed}=31m{s}^{-1}$
3. $\text{Average speed}=\frac{21}{10}m{s}^{-1}$
4. $\text{Average speed}=\frac{10}{21}m{s}^{-1}$

Q.

Himanshu starts from his home at 8:00 AM and reaches office by 9:00 AM. His office is $25km$ away from his house. What is his actual speed at 8:45 AM?

1. More than $25km{h}^{-1}$

2. $25km{h}^{-1}$

3. Less than $25km{h}^{-1}$

4. Cannot be determined

Q.

Define the term speed.

Q. The speed of a body is $5m{s}^{-1}$. The time it would take to cover a distance of 6 $km$ is ___ .

1. $\frac{1}{3}$ hour
2. $\frac{2}{3}$ hour
3. 1 hour
4. $\frac{1}{5}$ hour

Q. If the speed of a car is $20m{s}^{-1}$, what is the speed in $km{h}^{-1}$?

1. $36$
2. $72$
3. $108$
4. $90$

Q. Which quantity indicates that a body is moving faster as compared to another body?

1. Weight
2. Speed
3. Mass
4. Volume

Q.

Average speed is defined as

1. distance by time

2. displacement by time

3. time by displacement

4. time by distance

Q. If the time taken by a train moving at $100km{h}^{-1}$ to cover a certain distance is $0.5$ hours, what should be the speed of the train in order to cover the same distance in $0.2$ hours?

1. $250km{h}^{-1}$
2. $350km{h}^{-1}$
3. $500km{h}^{-1}$
4. $450km{h}^{-1}$

Q. Calculate the distance travelled by the object at a speed of 15 $m{s}^{-1}$ for $2$ seconds.

1. $30m$
2. $15m$
3. $7.5m$
4. $60m$

Q.

In order to cover a certain distance in a shorter time span, the object should have a greater _________.

1. mass

2. speed

3. frequency

4. time period

Q.

If the speed of a moving object is $5kmph$ then, how much distance will it cover in $10$ hours?

1. $50km$
2. $60km$
3. $25km$
4. $40km$

Q. A train is moving at a constant speed.
If the train covers $50km$ in $2$ hours, how much time would it take to cover $100km$?

1. $2h$
2. $8h$
3. $6h$
4. $4h$

Q. Name the device which is used to measure the distance travelled by a vehicle.

1. Metre scale
2. Speedometer
3. Thermometer
4. Odometer