Test: Force & Pressure- 1 - UPSC MCQ

The total force acting perpendicular on a given surface is called thrust. Thrust acting upon a unit area is called pressure.

In the given water tank, B and C are at the same levels. Hence, from taps B and C, water will flow out at the same pressure.

Rubbing creates an electrostatic charge, causing the balloon to stick, demonstrating electrostatic forces.

When a load is suspended from a spring, the load pulls the spring, causing it to stretch. This phenomenon can be explained by Hooke's law, which describes the relationship between the force applied to the spring and the resulting extension or compression of the spring. This demonstrates the concept of elastic deformation in materials subjected to external forces.

The two forces acting on the rocket immediately after leaving the launching pad are gravitational force and frictional force.

The statement is False.

When you push a ball gently along a level surface, it does move, even if only slightly. The movement depends on factors like the force applied, friction, and the smoothness of the surface.

The muscular force balances the gravitational force, keeping the bucket stationary, illustrating balanced forces.

Yes, magnets can exert a force on other magnets without touching them. This is because magnetic force is a non-contact force, meaning it can pull or push objects without physically touching them.

Explanation: Magnets have a magnetic field that surrounds them, with lines of force extending from the north pole to the south pole. This field allows magnets to interact with each other, even when they're not touching.

The athlete pushes against the ground to jump, showing how force can change motion.

Releasing the bulb creates a lower pressure inside, causing water to rise due to atmospheric pressure, demonstrating fluid dynamics.