- Gamma Rays are similar to X-Rays.
- When the resultant of all the forces acting on a body is zero the body is said to be in a state of Equilibrium.
- The Separation of ordinary light into its constituent colours is known as Dispersion.
- If a body weighs 600 kg on the surface of the earth then the weight of the same body on the surface of moon will be 1/6th i.e. 100kg.
- When a bullet penetrates into a target, the kinetic energy of a bullet is converted into Mechanical Energy.
- The process of digestion begins in Mouth.
- Sometimes when white blood corpuscles greatly increase in number, they cause a disease called Leukaemia.
- The principle of wireless telegraphy was discovered by Signor Marconi.
- The planet nearest to sun is Mercury.
- Pressure cooker works on the principle that the boiling point of a liquid increases with the increase of pressure.
- Copper is the best conductor of electricity.
- Blood cells are manufactured by bone marrow of the body.
- The smallest organism which causes disease is virus and even smaller is called viroids.
- Neutron, electron and Proton have neutral, negative and positive charges respectively.
- Of all the flying machines that man has made only Rockets are suitable for space flight.
- Transistors do not need a warm up period because they have no Filaments.
- If an object gives off its own light, it is said to be Luminous.
- An electric heater would be most likely to produce I.R Radiations.
- The Kelvin scale of temperature is called the absolute scale.
- The type of radiation that is unaffected by magnetic field is called Gamma Rays.
- If we know the mass of an object and the force applied on it, it is possible to calculate acceleration of the object.
- Active transport in animals and plants required metabolic energy and Concentration Gradient to carry the substances across cell membrane electrical gradient.
- Diseases that spread through air are called Air Borne diseases.
- When iron is less in body, the quantity of Haemoglobin in cell decreases.
- Arteries become hard due to deposition of Fats and Cholesterol in them.
- The science of study of old age is called Gerontology.
- The instrument used for measuring the velocity is called Anemometer.
- The science which deals with the bird is called Ornithology.
- The function of the thermostat in a refrigerator is to maintain temperature.
- Blotting paper absorbs ink because the action of capillary.
- Mirage is an example of Reflection of Light.
- The age of a tree can be determined by counting Rings of stem.
- In a normal resting man, the rate of heart beat is 72 per minute.
- In Pakistan copper is found in Saindak.
- American space shuttle Mercury Atlas-6 is the first winged space ship to orbit and return to airport landing.
- Myopia is a defect of vision which does not permit to see clearly the distant objects.
- The brightest planet is Venus.
- Urea s not a phosphorous fertilizer.
- Ibn Baitar was a renowned Muslim Botanist.
- Cellulose is natural polymer.
- Vitamin A & D are not water soluble.
- Amoeba is a unicellular animal.
- Solar eclipse occurs in full moon.
- Leprosy is a disorder of the Nervous System.
- Chlorofluorocarbons (CFCs) cause decomposition of ozone.
- Quartz is chemically a Silicate or Silicon dioxide.
- Chicken egg is composed of One Cell.
- Visible light energy has the wave length range of 400-700 nm.
- Standard pressure is 760 mm-Hg.
- Iron corrodes due to the formation of Iron Oxide.
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