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- It's important to be able to measure time accurately in seconds. We also need to think about how we record time if an activity takes longer than 60 seconds, or 1 minute. Compare these amounts: 65 seconds is the same as 1 minute, 5 seconds. 90 seconds is the same as 1 minute, 30 seconds. 187 seconds is the same as 3 minutes, 7 seconds.
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How do we measure time?
How do you measure time using a clock?
How do you convert units of time?
Can time be measured in different units?
How can you measure time? You can use a timer or a stopwatch to time how long it takes to do something. Short things can be measured in seconds, like doing 10 jumps on the spot. Other...
We can use a clock to measure time. On a clock there is a minute hand, an hour hand and sometimes a second hand. So we can measure seconds, minutes and hours.
Knowing how to measure time is useful as it helps you to work out when your favourite TV show is on, how long to bake something in the oven for, or how to read a timetable to see which bus...
1 hour = 60 minutes = 60 x 60 or 3600 seconds. We know that the face of the clock is marked with the numbers from 1 to 12, which divide the clock face into 12 equal parts. These 12 parts are further divided into 60 small divisions. So, there are 5 small divisions between any two numbers on the clock face.
- What Is time?
- Measurement of Time Using A Clock
- Solved Examples on Time
In math, time can be defined as an ongoing and continuous sequence of events that occur in succession, from past through the present, and to the future. Time is used to quantify, measure, or compare the duration of events or the intervals between them, and even, sequence events.
1. Analog Clock or the 12-hour clock
We measure and define what time of the day it is using clocks. A clock in general has 12 numbers written on it, from 1 to 12. It has an hour hand and a minute hand. Some clocks have a third hand as well. It shows time in seconds and is the fastest-moving hand. The time is usually based on a 12-hour clock. The hour hand, the shorter of the two hands, completes 1 rotation (360°) in 12 hours in a normal 12-hour analog. The minute hand, the longer hand, completes 1 rotation through 360° in 60 min...
2. Digital Clock or the 24-hour clock
Generally, we use the 12-hour clock to measure time. But railways, airlines, armed forces, and newspapers use the 24-hour clock. On the 24-hour clock, the hours from midnight to the next midnight are marked 0 to 24. 1. On a 24-hour clock, we use 4 digits. 2. The two digits on the right show the minutes past an hour. 3. The two digits on the left show the number of hours. For example: 12:45 means it is 45 minutes past 12 hours 18:20 means it is 20 minutes past 18 hours A day starts at midnight...
Example 1: Fill in the blanks with A.M. or P.M. 1. I wake up at 6:30 ______ 2. Lunchtime in school begins at 1:00 ______ 3. I go to play in the evening at 5:00 ______ 4. I have dinner at 9:00 ______ Solution: 1. A.M. 2. P.M. 3. P.M. 4. P.M. Example 2:What time will it be 4 hours after 7:45 P.M. Solution:11:45 P.M. Example 3:Write the number of hour...
How to convert units of time using conversion table. In order to convert units of time, you need to: Check the units involved. Remember 1 minute = 60 seconds, 1 hour = 60 minutes and 1 hour = 3600 seconds, 1 day = 24 hours. Draw conversion table and label with correct units.
Tell and write time to the nearest minute and measure time intervals in minutes. Solve word problems involving addition and subtraction of time intervals in minutes, e.g., by representing the problem on a number line diagram.
