CBSE Class 8 forceandpressure — practice questions
20 free MCQs with worked solutions. Tap any question for the answer + explanation, or practice them all in the app.
Practice CBSE Class 8 forceandpressure in the app →In science, a push or a pull acting on an object is called:The SI unit of pressure is:Force per unit area acting perpendicular to a surface is called:The force that arises due to the action of muscles in our body is called:The force of friction on a moving object always acts:Which of the following is a NON-contact force?The pressure exerted by the envelope of air surrounding the earth is called:Two friends push a heavy box from the same side, applying forces of 30 N and 40 N in the same direction. What In a tug-of-war, team A pulls the rope with a force of 250 N while team B pulls it from the opposite side withWhy are shoulder bags designed with broad straps rather than thin ones?Knives, needles and nails are deliberately given sharp or pointed edges. The reason is:The figure below shows a man pushing a stationary car. Which statement best describes the situation?
![](httpA plastic bottle is filled with water and four small holes are made at the same height around its bottom. StreA rubber sucker is pressed firmly against a smooth flat surface, as shown. It is now very difficult to pull itA perpendicular force of 100 N is applied uniformly on a surface of area 0.5 m². The pressure exerted on the sThe air in a column above a 15 cm × 15 cm patch on a person's head exerts a downward force of about 2250 N (eqIn a famous 17th-century demonstration, two metallic hemispheres of 51 cm diameter were joined together and thTwo children push a 20 kg box on a smooth floor at the same time. Anil pushes with 50 N toward the east, whileThree blocks A, B and C are placed on the same table. They have the same weight of 60 N. Their contact areas wA south pole of a bar magnet is brought near the north pole of another bar magnet placed on rollers (see figur