Welcome to your Ncert - class 9- science - Chapter 8 – Force and Laws of Motion 1
Match the following with correct response.
Statement A: Gravitational force is the weakest force in nature
A hockey player pushes the ball on the ground. Why does the ball come to rest after travelling a certain distance?
Which of the following uses the principle of conservation of momentum?
Ayush hits a cricket ball which than rolls of a level ground after covering a short distance, the ball comes to rest. The ball slows to a stop because
How much force acts on body whose momentum is constant (i.e. = constant)?
A bullet weighing 50 gram leaves the gun with a velocity of 30m/s.the ratio of their momentum is:
When a toothpaste tube is squeezed, it's shape changes. The force responsible for this is an example of _______.
Principle of rocket is based on Newton's ......... law of motion.
A truck is moving on a frictionless surface with uniform velocity of 10ms −1 . A leak occurs in the water tank of the truck at the rate of 2kg −1 What is the speed of truck after 50 s, if the mass of truck is 100kg and mass of water in the truck initially was 100kg?
An object maintains its motion under the continuous application of ________force
Identify the incorrect statement.
What is the product of force and the time for which force acts known as?
Choose the correct statement from the following:
What happens when some children try to push a box on a rough floor?
If an object experiences a net zero unbalanced force, then the body
What is the direction of the unbalanced force acting on a body which is accelerating in a straight line?
What is the action reaction pair when we walk on the floor?
Time's up
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