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