Malaria is a disease which effects the
Heart
Lungs
Spleen
Kidneys
Food is normally digested in the
Liver
Stomach
Large intestines
Small intestines
True or false? Iron is attracted by magnets
True
False
What is the name of the point where light rays from infinity coverge after passing through a lens?
Center
Infinity
Parabola
Focus
How much heat is required to raise the temperature of 1g of water by 1 oC (degree centigrade) ?
1 Joule
100 Calories
1 calorie
100 Joules
What is the speed of sound in air in meters per second (at a pressure of one atmosphere and temperature of 25oC)?
110
230
490
330
The SI unit of electric current is ?
Amphere
Farad
Ohm
Mho
What type of lens is a magnifying glass?
Convex
Concave
Plano-Concave
Plano-Glass
The wire of an electric bulb is known as the ?
Heating Element
Filament
Luminous Wire
Radiator
The presence of charge on a substance can be confirmed by a ?
Gold Leaf Electroscope
Electrodes
Ammeter
Thermometer