Measurements of time

What help us to measure time?

• Calendars
• To count the days I go to school
• To  count how many times I had swimming classes
• None of the above

how many years are in two decades?

• 10 years
• 100 years
• 20 years
• 200 years

An hour has

• 60 seconds
• 24 hours
• 60 minutes
• 24 minutes

How many years are there in three centuries?

• 100 years
• 30 years
• 200 years
• 300 years

To know if you are late for a class you look at...

• Calendar
• The watch
• The face of your teacher
• The time table

Tyreese sprinted down the hallway for a science project. He ran a total of 40 meters in 20 seconds. What was his average speed?

• 2 meters per second
• 20 meters per second
• 40 meters per second
• 10 meters for second

A runners races in the 100 meter dash.  It takes her 10 seconds to finish.  What is her average speed?

• 10 m/s
• 1000 m/s
• 100 seconds
• 10 seconds

What is the formula to calculate speed?

• S=t/d
• S=d/t
• S=d*t
• S=d*t

Which of the following is a unit of speed ?

• sec
• mi
• m/s
• min

A train travels 25 km in 0.5 hrs. How fast is the train going?

• 25 miles/hr

• 5 miles/hr

• 125 km/hr

• 50 km/hr