1
What is the formula to find time?
Time = Distance ÷ Speed
What is the standard unit of distance in science?
metre
Formule for find average speed
average distance divide by average time
What does it mean “per”?
each
How will we calculate a speed?
Distance:time
A car travels 100 km at a speed of 50 km/h. How long does it take?
Time = 100 ÷ 50 = 2 hours
What is the standard unit of time in science
second
What the standard speed
metre per second
What is formula of speed?
Distance/time
What is the unit for speed?
m/s
A train travels 240 km at 80 km/h. Find the time.
Time = 240 ÷ 80 = 3 hours
What is the standard unit of speed in science
m/s
The car speed is 200 m/s and car travel 10 seconds find the distance
2000m
What is formula of distance?
Speed*time
A car travels 200 km in 4 hours. What is its average speed?
50km/h
A bus travels 150 km at 60 km/h. How many minutes does the journey take?
2 hours 30 minutes
A car travels at 50 km/h. What does 50 km/h mean?
It travels a distance of 50 km every hour
A car travels 450 meters in 1 minute. What is its speed in m/s?
7.5 m/s
What is constant means?
Constant means not changing.
A piogen files for 7 hours at a speed of 70km/h. Calculate the distance in kelometers.
490km
A car travels 90 km at 45 km/h and then 60 km at 30 km/h. How much total time does the trip take?
Time₁ = 90 ÷ 45 = 2 hours
Time₂ = 60 ÷ 30 = 2 hours
A bus travels at 120 km in a time of 40 s. Find the average speed
Speed=Distance/Time
Speed=120/40
Speed=3m/s
A motorist drives 1 hour at 45 km/h, and 1 hour at 65 km/h. What is the average speed?
55km/s
What is average speed?
average speed is
sometimes used because the speed of
an object during a journey
A car travels 120 km at 60km/h, then 120 km at 40km/h. What is the total average speed?
48km/h