6.2 Speed

• physics
• Middelbare school
• havo, vwo
• Leerjaar 2

6.2 Speed

Speed

What is speed?

The distance coverd in a certain amount of time.

Speed

What is speed?

The distance coverd in a certain amount of time.

v

s

t

/

velocity

time

spatium

Calculating speed

v = s / t 

s = distance in metres (m)

t = time in seconds (s)

v = speed in metres per seconds ( m/s) 

Converting distance

km to m ( x 1000)

m to km ( / 1000)

Converting time

minut to seconds ( x 60)

hour to minuts ( x 60)

hour to seconds ( x 3600)

seconds to hours ( / 3600)

Converting speed

....... m/s

....... km/h

x 3.6

/ 3.6

A man sprinter runs the hundred metres in 10.5 seconds.

calculate his average speed.

A man sprinter runs the hundred metres in 10.5 seconds.
calculate his average speed. (1 dec.)

A man sprinter runs the hundred metres, his average speed is 9.5 m/s. What's his speed in km/h?

A Lamborghini driver knows she can easily manage an average speed of 210 km/h  for a particular route. The route takes 7.5 hours. What approximate distance did she travel?

A Lamborghini driver knows she can easily manage an average speed of 210 km/h for a particular route. The route takes 7.5 hours. What approximate distance (km) did she travel?

A Lamborghini driver knows she can easily manage an average speed of 210 km/h for a particular route. What's the speed in m/s? (1 dec.)

This duck goes on a long hike for 50 km. Her average speed is about 2 km/h. How long does the trip takes her?

This duck goes on a long hike for 50 km. Her average speed is about 2 km/h. How long does the trip takes her?

This duck goes on a long hike for 50 km. Her average speed is about 2 km/h.
What's her speed in m/s? (1 dec.)

What's the distance you've travelled this morning to school?

Write down in your notebook,

distance travelled    ... km

(Googlemaps, travel by bicycle!)

How long did it take you this morning to travel to school?

Write down in your notebooek

time    ... minutes

(Googlemaps, travel by bicycle!)

What was your speed this morning?

Work

sum 6.2

do 14 / 20