Class 10th
Get insights from 585 questions on Class 10th, answered by students, alumni, and experts. You may also ask and answer any question you like about Class 10th
- 585
Questions
- 0
Discussions
- 1
Active Users
- 6
Followers
Have a question about Class 10th? Ask our experts
Keep it short & simple. Type complete word. Avoid abusive language.
In Indirect Speech, pronouns change according to the perspective of the speaker and listener.
Direct: Pinky said to me, "I will help you."
Indirect: Pinky told me that she would help me.
Here, 'I' becomes 'she', and 'you' becomes 'me'.
Upvote 
Sentences with Direct speech reports the exact words of the speaker, as spoken by him/her, within quotation marks, while indirect sentences conveys the meaning of the message without quotation marks.
For example:
Direct: She said, "I am happy."
Indirect: She said that she was happy.
Upvote How does isotropy of molecular motion simplify the pressure equation?
How does isotropy of molecular motion simplify the pressure equation?
Through isotropy, we can say it enables equal distribution of velocity components in all directions. This allows us to replace directional velocity terms with a fraction of the total velocity squared. That basically simplifies the pressure formula to involve only rms speed.
Upvote Why is pressure proportional to the square of molecular speed in an ideal gas?
Why is pressure proportional to the square of molecular speed in an ideal gas?
This is because pressure is a result of how momentum transfers during collisions. We also know that momentum depends on velocity. The derivation shows that pressure is proportional to the average of squared velocities. That we know from the root-mean-square (rms) speed.
Upvote How does the viscosity of a dilute gas change with temperature, and is this similar to liquids?
How does the viscosity of a dilute gas change with temperature, and is this similar to liquids?
Surprisingly, the viscosity of a dilute gas behaves exactly opposite to what you might expect for liquids. Liquid viscosity generally decreases as temperature is lowered. The viscosity of a dilute gas increases as and when you raise its temperature. This counter-intuitive behaviour was clearly estab
Upvote Why don't gas molecules in a room simply fall to the ground due to gravity?
Why don't gas molecules in a room simply fall to the ground due to gravity?
It's because gas molecules constantly move around at super high speeds. They randomly bump into each other constantly. Gravity does pull on them. The pulling effect is not much, however. When we consider the distance from the floor to the ceiling, gravity's pull is overcome by the molecular kinetic
Upvote No preposition and prepositional phrases are not the same. Although very closely related, the two are different topics. Check below the key difference between a preposition and prepositional phrases:
- Preposition: A single word that shows a relationship between a noun/ pronoun and another word.
Example
Upvote Check out some good books for prepositional phrases:
Book | Author/ Publisher |
|---|---|
English Prepositions Explained | Seth Lindstromberg |
Practice Makes Perfect: English Prepositions Up Close | Jean Yates |
The Only Grammar Book You'll Ever Need | Susan Thurman |
English Grammar in Use | Raymond Murphy |
Understanding and Using English Grammar | Betty Schrampfer Azar |
Upvote Here are three examples of prepositional phrases:
- I found the sock under the bed.
- She stood by the river and wept.
- Jane walked slowly towards the house.
Upvote A prepositional phrase is a group of words that begins with a preposition (e.g. as in, on, under, with, etc.) and ends with its object. The object is often accompanied by modifiers that describe it.
Example: She stood under the shade.
Upvote