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Practice Questions: Clocks and Calendar | Science Olympiad for Class 5 PDF Download

Q1: If the time is 4:30, where would the hour and minute hands of the clock be?
Ans: 
The hour hand will be between 4 and 5, and the minute hand will be at 6.

At 4:30, the hour hand is halfway between 4 and 5, and the minute hand is at 6, representing 30 minutes.

Q2: What is the time shown if the hour hand is at 9 and the minute hand is at 3?
Ans:
9:15

The hour hand at 9 and the minute hand at 3 represents 15 minutes past 9, so the time is 9:15.

Q3: How much time passes between 2:15 PM and 5:00 PM?
Ans: 
2 hours 45 minutes

From 2:15 PM to 5:00 PM is a time difference of 2 hours and 45 minutes.

Q4: If today is Wednesday, what day will it be 15 days from now?
Ans: 
Thursday

15 ÷ 7 = 2 weeks and 1 extra day. Starting from Wednesday, after 15 days, it will be Thursday.

Q5: How many days are there in February during a leap year?
Ans:
29 days

In a leap year, February has 29 days instead of 28.

Q6: Find the difference in time between 8:20 AM and 10:55 AM?
Ans: 
2 hours 35 minutes

From 8:20 AM to 10:55 AM, the time difference is 2 hours and 35 minutes.

Q7: If today is Sunday, what day was it 20 days ago?
Ans: 
Monday

20 ÷ 7 = 2 weeks and 6 extra days. Counting 6 days back from Sunday gives Monday.

Q8: How many months in a year have 31 days?
Ans:
7 months

The months with 31 days are January, March, May, July, August, October, and December.

Q9: Is the year 2024 a leap year?
Ans:
Yes

2024 is divisible by 4, so it is a leap year.

Q10: What time is shown on the clock if the hour hand is at 10 and the minute hand is at 12?
Ans: 
10:00

The minute hand at 12 represents 00 minutes, and the hour hand at 10 means the time is exactly 10:00.

Q11: If a bus leaves at 9:25 AM and arrives at 12:15 PM, how long is the journey?
Ans:
2 hours 50 minutes

From 9:25 AM to 12:15 PM, the time difference is 2 hours and 50 minutes.

Q12: What day will it be 30 days after Friday?
Ans: 
Sunday

30 ÷ 7 = 4 weeks and 2 extra days. Counting 2 days forward from Friday gives Sunday.

Q13: How many days are there between March 10 and April 5?
Ans: 
26 days

There are 21 days in March (from March 10 to March 31) and 5 days in April (from April 1 to April 5), making a total of 26 days.

Q14: If today is Monday, what day will it be after 50 days?
Ans:
Tuesday

50 ÷ 7 = 7 weeks and 1 extra day. Counting 1 day forward from Monday gives Tuesday.

Q15: How many days are there in the month of April?
Ans: 
30 days

April is one of the months that has 30 days.

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FAQs on Practice Questions: Clocks and Calendar - Science Olympiad for Class 5

1. What are the different types of clocks we use in daily life?
Ans. We commonly use analog clocks, digital clocks, and smart clocks. Analog clocks have hour and minute hands, while digital clocks display time in numbers. Smart clocks can connect to the internet and may have additional features like alarms and notifications.
2. How do you calculate the angle between the hour and minute hands of a clock?
Ans. To calculate the angle, use the formula: Angle = |(30*hour - (11/2)*minutes)|. For example, at 3:00, the angle is |(30*3 - (11/2)*0)| = |90| degrees.
3. What is the significance of a leap year in the calendar?
Ans. A leap year has 366 days instead of the usual 365 days. It occurs every four years to help synchronize the calendar year with the solar year. This extra day is added to February, making it 29 days long.
4. How can we determine the day of the week for any given date?
Ans. We can determine the day of the week using methods like Zeller's Congruence or the Doomsday rule. These methods involve calculations based on the date, month, and year to find the corresponding day.
5. Why do we need to understand the concept of time zones?
Ans. Understanding time zones is important because the world is divided into different regions that experience sunrise and sunset at different times. This knowledge helps in scheduling meetings, travel plans, and communication across various parts of the world.
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