Ch-02: Vectors | MCQs

Ch-02: Vectors 

Multiple Choice Questions 

This chapter delves into the representation of vectors in 2-D space, breaking them down into two perpendicular components, which enables the calculation of various vector operations. A key concept explored in this chapter is the product of two vectors, also known as the dot product or scalar product, which results in a scalar value rather than another vector.

Ch-01: Measurement | MCQs

Ch-01: Measurement

Multiple Choice Questions [MCQs]

The document consists of multiple-choice questions related to physical quantities and measurements, covering topics such as SI units, dimensions, significant figures, and measurement accuracy. It includes questions about specific units, their definitions, and calculations involving uncertainties and conversions. The content is structured to test knowledge in physics, particularly in the context of measurement and dimensional analysis.

Unit-05: Clean Water and Sanitation

Unit-05: Clean Water and Sanitation
1	What are the effect of drinking unclean water and bad sanitation on communities?
Ans:	Drinking unclean water and having poor sanitation can lead to severe public health crises. Communities facing these issues suffer from increased incidences of waterborne diseases such as diarrhea, cholera and dysentery.

Unit-04: Butterflies

Unit-04: Butterflies
1	Discuss the theme of the story in your own words:
Ans:	The theme of the story is the loss of innocence and the harsh realities of life. The write appreciates the beauty of butterflies but sees how cruelly they are treated at the orphanage.

Unit-03: The Wind

Unit-03: The Wind
1	No one can see the wind. Discuss how we can feel its presence?
Ans:	We can feel the presence of the wind through its effects on our surroundings. The wind pushes against us, makes kites fly high, and moves birds in the sky. We can hear it blowing and feel it on our skin. The wind also moves leaves and trees.

Unit-02: Shooting Stars

Unit-02: Shooting Stars
1	Define meteors?
Ans:	Meteors are small pieces of comets that exploded long ago and travel through space. They follow large, looping paths similar to the original comet’s orbit. When they enter Earth’s atmosphere, friction makes them white-hot. This causes them to appear as bright streaks of light in the sky.

Unit-01: Family Values in Pakistan

Unit-01: Family Values in Pakistan
Exercise Question / Answers
1	Discuss the characteristics of family as a ‘bond of relationships’.
Ans:	The family as ‘bond of relationships’ has the following characteristics: It is not just a group of people living together who are joined by blood or marriage. It is made by people who are emotionally connected to each other. In ‘bond of relationships’ each relation is a source of strength to the other.