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Class 7 Science Chapter 8 Mindmap - Measurement of Time and Motion

Class 7 Science Chapter 8 Mindmap - Measurement of Time and Motion

The document Class 7 Science Chapter 8 Mindmap - Measurement of Time and Motion is a part of the Class 7 Course Science Olympiad Class 7.
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FAQs on Class 7 Science Chapter 8 Mindmap - Measurement of Time and Motion

1. What are the basic units of measurement for time and motion?
Ans. The basic unit of measurement for time is the second (s). Other common units include minutes and hours. For motion, the basic unit of measurement is distance, which is often measured in meters (m), kilometers (km), or centimeters (cm). Speed is also a key concept in motion, typically measured in meters per second (m/s) or kilometers per hour (km/h).
2. How do we measure time accurately?
Ans. Time can be measured accurately using various devices such as clocks and stopwatches. Clocks can range from simple mechanical designs to sophisticated atomic clocks that measure time based on the vibrations of atoms. Stopwatches are used for precise timing of events, allowing us to measure short intervals accurately.
3. What is the relationship between speed, distance, and time?
Ans. The relationship between speed, distance, and time is described by the formula: speed = distance/time. This means that if you know the distance traveled and the time taken, you can calculate the speed. Conversely, if you know the speed and time, you can determine the distance traveled.
4. Why is it important to understand measurements of time and motion?
Ans. Understanding measurements of time and motion is crucial because it helps us analyze and predict the behavior of moving objects. This knowledge is applied in various fields such as physics, engineering, and everyday life, allowing us to make informed decisions based on how fast something moves or how long it takes to travel a certain distance.
5. What tools can be used to measure motion?
Ans. Tools used to measure motion include rulers or measuring tapes for distance, stopwatches for timing, and speedometers for measuring speed in vehicles. Additionally, motion sensors and accelerometers are used in more advanced applications to track movement and calculate speed and acceleration continuously.
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