General Science 7th Class English Medium Online Test With Answers

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General Science 7th Class English Medium Online Test

Sr. # Questions Answers Choice
1 The temperature of melting ice in Fahrenheit scale is. 0 oF 32 oF 100 oF 212 oF
2 The temerature o boiling water in centigrade scale is. 0 oC 32 oC 37 oC 100 oC
3 Centigade scale is also called Fehrenheti scale Fake scale Absolute scale Celsius scale
4 The bulb of the thermometer is filled with. Oil Alcohol Water Salt
5 The degreee of hotness or coldness is called. Thermal contrction Heat Thermal Expansion Temperature
6 The wavelength of red colour is. 700 nm 800 nm 900 nm 600 nm
7 Dolphins can hear sound underwater from up to ............ away 15 km 20 km 25 km 30 km
8 An object produce a sound with a frequency of 50 Hz. Find its tiem period. 0.01 sec 0.03 sec 0.02 sec 0.04 sec
9 The lowest pointof a wave is................ Crest Amplitude Peak Trough
10 ------------ waves are produced in stretched string. Longitudinal wave Elecromagnetic wave Transverse wave None of these
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