Time

Front

What is the definition of time in physics?

Back

Time is a measure of the duration of events and the intervals between them, often considered as a continuous progression from the past, through the present, and into the future.

Front

What are the units of time commonly used?

Back

The most common units of time are seconds, minutes, hours, days, weeks, months, and years.

Tags

CCSS.4.MD.A.1

Front

How do you convert hours into minutes?

Back

To convert hours into minutes, multiply the number of hours by 60.

Tags

CCSS.4.MD.A.1

Front

What is the 12-hour clock system?

Back

The 12-hour clock system divides the 24-hour day into two periods: AM (from midnight to noon) and PM (from noon to midnight).

Front

What is the 24-hour clock system?

Back

The 24-hour clock system runs from 00:00 (midnight) to 23:59, eliminating the need for AM and PM.

Tags

CCSS.L.1.6

CCSS.L.3.6

CCSS.L.K.5A

CCSS.W.2.3

CCSS.W.3.3C

Front

How do you read a clock showing 7:00?

Back

A clock showing 7:00 indicates that the hour hand is on 7 and the minute hand is on 12.

Tags

CCSS.1.MD.B.3

Front

What does it mean when a clock shows 5:30?

Back

When a clock shows 5:30, it means the hour hand is between 5 and 6, and the minute hand is on 6, indicating 30 minutes past 5.

Tags

CCSS.1.MD.B.3

Front

How do you calculate the time difference between two times?

Back

To calculate the time difference, subtract the earlier time from the later time, converting hours and minutes as necessary.

Tags

CCSS.3.MD.A.1

Front

What is the significance of the minute hand on a clock?

Back

The minute hand indicates the number of minutes past the hour, moving around the clock face to complete a full rotation every hour.

Tags

CCSS.1.MD.B.3

Front

What is the significance of the hour hand on a clock?

Back

The hour hand indicates the current hour, moving slowly around the clock face to complete a full rotation every 12 hours.

Tags

CCSS.4.MD.A.1