What is speed

What is the correct definition for speed? (You can choose to option )

• Speed is the measure of how slow an object moves

• Speed is the measure of how an object moves

• Speed is the measure of how fast an object moves.

• Speed is the quantity that tells us how fast an object moves

Why vehicles should travel slowly when the floor is wet

• Because the road is wet so there is less friction between the car and the road.

• Because the road is wet so there is more friction between the car and the road

• There is not any concept of Friction.

To calculate speed which two measures we need to know :

• Distance and Time

• Distance and Velocity

• Velocity, Distance, Time

• Velocity, Time

What is the correct formula for speed :

(You can choose two option

• Speed=Distance

  Time

• Speed=Time

  Distance

• Average speed=Total distance travelled

  Total time taken

• Speed= Distance

  Velocity

A car travel 200m/s in 4s. What is its average speed?

A blue motorcycle travels 600 m in the 20s. A Green motorcycle travels 900 m in the 30s. Which motorcycle has a greater average speed?

• Blue

• Green

• Both have the same average speed

Select units for speed :

• km/h

• m/s

• m²

• cm3