Scientific Instruments Online Test

1. Hydrometer is the device that measure ?

2. Why ammeter is used ?

3. A light microscope uses lenses to make the objects looks much bigger. What this increase in size is called ?

4. Sailors and other travellers used a device to find close to the North and South geographic poles. How is known the device ?

5. Which instrument is used to receive radio waves from objects in space ?

6. Thermometer is used to ?

7. Who invented chronometer ?

8. Name the device that is used to measure the humidity ?

9. For which purpose seismograph is used ?

10. Which instrument  is used to measure the pressure of air ?

11. For which purpose instrument Centrifuge is used ?

12. Mention the instrument that is used to split light into its spectrum ?

13. Which instrument is used for estimating the height of an aircraft above sea level ?

14. Which instrument is used to measure minute electrical currents ?