Science Study Block

Notes

SECTION A (1X20=20 Marks) I. Choose the correct options: 1. Which of these microorganisms is used in the production of bread? (a) Amoeba (b) Yeast (c) Paramecium (d) Virus 2. Friction always acts in the ________ direction to the motion of an object. (a) Same (b) Perpendicular (c) Opposite (d) Circular 3. The SI unit of pressure is: (a) Newton(b) Joule (c) Pascal (d) Watt 4. An instrument used to measure atmospheric pressure is: (a) Thermometer (b) Barometer (c) Ammeter (d) Voltmeter 5. Which of the following is an example of a non-contact force? (a) Muscular Force (b) Frictional Force (c) Magnetic Force (d) Tension 6. The center of a cyclone is a calm area called the: (a) Heart (b) Eye (c) Core (d) Nucleus 7. Pure matter which consists of only one kind of atoms is called: (a) Mixture (b) Compound (c) Element (d) Solution8. Increased wind speed is accompanied by: (a) Increased air pressure (b) Reduced air pressure (c) No change in pressure (d) Heavy rain 9. A disease caused by Bacteria is: (a) Typhoid (b) Measles (c) Polio (d) Chickenpox 10. The force exerted by a charged body on another charged body is: (a) Gravitational force (b) Electrostatic force (c) Magnetic force (d) Friction...