1. When a ship floats on water (c)
(a) it displaces no water
(b) the mass of water displaced is more than the mass of the ship
(c) the mass of the water displaced is equal to the mass of the ship
(d) the mass of water displaced is less than the ship
2.Newton’s first law is also called as: (c)
(a)a law of movements
(b)a law of momentum
(c)a law of inertia
(d)a law of energy
3.Polio is caused by (b)
(a) bacteria
(b) Virus
(c) Protozoa
(d) Fungus
4. The passengers on a boat are not allowed to stand because : (a)
(a) this will raise the center of gravity and the boat to be rocked
(b) this will lower center of gravity and the boat will rock
(c) the effective weight of system increases
(d) of surface tension effects
5.Penicillin is isolated from: (a)
(a)Fungi
(b)Algae
(c)Virus
(d)Bacteria
