P S Verma and V K Agarwal Solutions for Chapter: Model Test Paper 5, Exercise 1: SECTION-A
P S Verma Biology Solutions for Exercise - P S Verma and V K Agarwal Solutions for Chapter: Model Test Paper 5, Exercise 1: SECTION-A
Attempt the practice questions on Chapter 11: Model Test Paper 5, Exercise 1: SECTION-A with hints and solutions to strengthen your understanding. Science for Ninth Class (Part-3) Biology solutions are prepared by Experienced Embibe Experts.
Questions from P S Verma and V K Agarwal Solutions for Chapter: Model Test Paper 5, Exercise 1: SECTION-A with Hints & Solutions
Define the term ‘work’. Write the formula for the work done on a body when a force acts on the body in the direction of its displacement. Give the meaning of each symbol which occurs in the formula.
What do you understand by the kinetic energy of a body?
A body is thrown vertically upwards. Its velocity goes on decreasing. What happens to its kinetic energy as its velocity becomes zero?
A horse and a dog are running with the same speed. If the weight of the horse is ten times that of the dog, what is the ratio of their kinetic energies ?
An electric bell is suspended by thin wires in a glass vessel and set ringing. Describe and explain what happens if the air is gradually pumped out of the glass vessel.
Why cannot a sound be heard on the moon? How do astronauts talk to one another on the surface of moon?
A car travels at a speed of and returns with a speed of . Calculate the average speed for the whole journey.
Draw the sketches of two waves A and B such that wave A has twice the wavelength and half the amplitude of wave B.
