Question 1 : <img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1d068f59b460d7261f2e5.PNG' />
In the above image, when the circuit is completed, the hammer strikes the gong. Which of the following force is responsible for the movement of hammer?
Question 2 :
State true or false: The force of gravitation exist between two astronauts in space
Question 3 : <img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1d069f59b460d7261f2e6.PNG' />
In the above image, a container is filled with water. Which of the following statements is correct about pressure of water?
Question 4 : <img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1d066f59b460d7261f2e2.PNG' />
In the above image, Two rods of the same weight and equal length have different thickness are shown.They are held vertically on the surface of sand.Which one of them will sink more?
Question 5 :
Two persons are applying forces on two opposite sides of a moving cart. The cart still moves with the same speed in the same direction.What do you infer about direction of the forces applied.?
Question 6 : <img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1d06ff59b460d7261f2ed.PNG' />
In the above image, a circuit is shown when the key is closed, the compass needle placed in the match box deflects. Name the force which causes this deflection.
Question 7 : <img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1d06cf59b460d7261f2ea.PNG' />
In the above image, a car is shown sticking to an electromagnet. Name the forces acting on the car?
Question 8 :
A man is pushing a cart down a slope. Suddenly the cart starts moving faster and he wants to slow it down. What should he do?
Question 10 :
Two objects repel each other. This repulsion could be due to
Question 11 :
State true or false: It is difficult to cut cloth using a pair of scissors with blunt blades.
Question 12 :
State true or false: Force of gravity act on dust particles
Question 13 : <img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1d06bf59b460d7261f2e9.PNG' />
In the above image, a man with a parachute is shown. Name the force which is responsible for his downward motion?
Question 14 :
Fruits detached from a tree fall down due to force of gravity. We know that a force arises due to interaction between two objects.Which of the following is(are) the objects interacting in this case?
Question 15 :
A gas filled balloon moves up. Is the upward force acting on it larger or smaller than the force of gravity?
Question 17 : <img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1d06af59b460d7261f2e7.PNG' />
In the above, image, A water tank has four taps fixed at points A, B, C, D is shown. The water will flow out at the same pressure from taps
Question 18 : <img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1d06df59b460d7261f2eb.PNG' />
In the above image, a man with a parachute is shown. Will he come down with the same speed without the parachute?
Question 19 : <img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1d06ef59b460d7261f2ec.PNG' />
In the above image, a car is shown sticking to an electromagnet. Out of all the forces acting on the car which one of them is larger?
Question 20 :
While sieving grains, small pieces fall down. Which force pulls them down?
Question 21 :
You spill a bucket of soapy water on a marble floor accicdentally . Would it make it easier or more difficult for you to walk on the floor?
Question 23 :
Iqbal has to push a lighter box and Seema has to push a similar heavier box on the same floor. Who will have to apply a larger force?
Question 24 :
If an object started moving, it would never stop if there were no friction.
Question 26 :
The frictional force also depends on the _____ of the object and the _______ of the fluid respectively.
Question 27 :
The frictional force on an object in a fluid depends on its ____ with respect to the fluid.
Question 28 :
We have two identical metal sheets. One of them is rubbed with sand paper and the other with ordinary paper. The one rubbed with sand paper shines more than the other due to which of the following reasons?
Question 29 :
What happens to the strength of frictional force when logs are lifted by placing logs under it?
Question 30 :
Iqbal has to push a lighter box and Seema has to push a similar heavier box on the same floor . Who will have to apply a larger force?
Question 32 :
If you roll a pencil from an inclined plane, then cover the surface by cloth and roll the pencil again. In which case does it travel the farthest distance?
Question 34 :
In a large commercial complex there are four ways to reach the main road. One of the path has loose soil, the second is laid with polished marble, the third is laid with bricks and the fourth has gravel surface. It is raining heavily and Paheli wishes to reach the main road. The path on which she is least likely to slip is
Question 36 :
To reduce friction, the shape of an aeroplane is made similar to which organism?
Question 39 : <img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1d070f59b460d7261f2ef.PNG' />
In the above image, a boy is shown pushing the box from right to left.The force of friction will act on the box
Question 40 :
Friction opposes relative motion between the surfaces of the book and the table. True or false?
