Everyday Science MCQs

1. 1 g/cm3
2. 1.5 g/cm3
3. 2 g/cm3
4. none of these

Radioactivity was discovered by __________?

1. Kelvin
2. Thomson
3. Rutherford
4. Bacquerel

A device which converts chemical energy into electrical energy is called __________?

1. motor
2. generator
3. moving-coil meter
4. battery

The Sun is a __________?

1. Planet
2. Asteroid
3. Meteor
4. Star

The gas used in a refrigerator to cool water is___________?

1. Nitrogen
2. Carbon dioxide
3. Methane
4. Ammonia