# Physics Motion and Time Part 10 (Questions 1) Class 7 VII | Summary and Q&A

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January 29, 2016
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LearnoHub - Class 11, 12
Physics Motion and Time Part 10 (Questions 1) Class 7 VII

## TL;DR

This video discusses the classification of different types of motion and provides examples, as well as covers concepts such as time period and speed calculations.

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### Q: What are the different types of motion discussed in the video?

The video discusses rectilinear, circular, and oscillatory motion, providing examples for each type.

### Q: Is it true that every object moves with a constant speed?

No, this statement is false. Different objects have different speeds, and they can vary over time. This concept is known as non-uniform motion.

### Q: How is the time period of a pendulum determined?

The time period of a pendulum is the time taken to complete one oscillation. It remains constant for a given pendulum and is dependent on its length.

### Q: How do you calculate the speed of a train that covers a distance of 240 kilometers in 4 hours?

The speed of the train is calculated by dividing the distance traveled (240 kilometers) by the time taken (4 hours), resulting in a speed of 60 kilometers per hour.

## Summary & Key Takeaways

• The video classifies various types of motion, including rectilinear, circular, and oscillatory motion.

• It explores examples of each type of motion, such as a horse pulling a cart (rectilinear), a child on a merry-go-round (circular), and a child on a seesaw (oscillatory).

• The video also addresses common misconceptions, such as every object moving with a constant speed and the time period of a pendulum not being constant.