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

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January 29, 2016
by
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.

## Key Insights

• 🅰️ Motion can be classified into different types: rectilinear, circular, and oscillatory.
• 🏇 Examples of rectilinear motion include a horse pulling a cart on a straight road.
• 🙈 Circular motion is seen in the movement of a child on a merry-go-round.
• 👶 Oscillatory motion can be observed in a child on a seesaw or the vibrations of a hammer in an electric bell.
• 🐎 Every object doesn't move with a constant speed; speeds can vary and change over time.
• ⌛ The time period of a pendulum remains constant and is determined by its length.
• 🚄 The speed of a train is typically expressed in kilometers per hour or meters per second.

## Transcript

hello friends this video on motion and time part 10 is brought to you by example comm no more fear from exam so with this we have reached towards the end of this lesson so now we will quickly look at some of the questions question number 1 classify the following as motion along a straight line circular or oscillatory motion so just to remind you mo... Read More

## Questions & Answers

### 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.