Question

1. If we release a magnet held in our hand, it falls to the ground. The force responsible for this is: A muscular force C. electrostatic force B. magnetic force D. gravitational force 2. The magnitude of force is expressed in the unit of force called A. pascal C. newton B. kelvin D. Magdeburg 3. Which of the following is not a non-contact force? A. electrostatic force C. frictional force B. gravitational force D. magnetic force 4. Which of the following is not an example of the force of gravity? A, a leaf falling from a tree B, a boy pushing a cart on a level plane C. a diver jumping into a swimming pool. D. a stone falling from the top of a cliff S. The same force acts on four different objects having the areas given below, one by one, In which case the pressure exerted will be the maximum? A. 20 m C. 10 m2 B. 50 m2 D. 100 m²​

Answer 1

Answer:

1. (d) Gravitational force.

2. (c) Newton

3. (a) Electrostatic force

4. (b) A boy pushing a cart on a level plane.

5. (c) 10m^2 , because as area decrases the pressure increases.