(English Medium) ICSE Class 9 - CISCE Question Bank Solutions for Physics

Can you suggest a real-life example about the motion of a body from the following velocity – time graph?

A packet is dropped from a stationary helicopter, hovering at a height ‘h’ from ground level, reaches the ground in 12s. Calculate

1. the value of h
2. final velocity of packet on reaching the ground. (Take g = 9.8 ms⁻²)

A stone thrown vertically upwards takes 3 s to attain maximum height. Calculate

1. initial velocity of the stone
2. maximum height attained by the stone. (Take g = 9.8 ms⁻²)

Which one of the following is not renewable energy technology?

What is nuclear energy? Name the process used for producing electricity using the nuclear energy.

Explain, why nuclear fusion is not being used to meet day to day energy needs.

What is nuclear waste? What are hazard of nuclear waste to living beings? How is nuclear waste disposed off?

What do you mean by degradation of energy? Explain it by taking two examples of your daily life.

The conversion of part of energy into a unuseful form of energy is called ___________

What do you mean by greenhouse effect? 

Name three green house gases. 

The green house gas is : 

Without green house effect, the average temperature of Earth's surface would have been :