Scientific Instruments

What sounds are heard When using a stethoscope to listen to a heartbeat?

1. Closing of heart valves and blood flow
2. Heartbeats only
3. Breathing sounds
4. Only valve closing

Which instrument measures temperature by radiation?

1. Barometer
2. Thermometer
3. Pyrometer
4. Luxmeter

Which instrument is used to separate mixtures of chemicals?

1. Beaker
2. Centrifuge
3. Test tube
4. Thermometer

Which instrument receives radio waves from objects in space?

1. Radio Telescope
2. Telescope
3. Microphone
4. Electroscope

Which instrument measures the intensity of sound?

1. Audiometer
2. Thermometer
3. Luxmeter
4. Barometer

Which instrument is used to measure time?

1. Timer
2. Stopwatch
3. Clock
4. Chronometer

Which instrument detects the presence of electric charge?

1. Electroscope
2. Ammeter
3. Galvanometer
4. Voltmeter

What is used to view rapidly moving objects?

1. Stroboscope
2. Magnifying glass
3. Microscope
4. Camera

What instrument is used to measure distance, elevations, and bearings during surveys?

1. Thermometer
2. Barometer
3. Tachometer
4. Luxmeter

Which instrument determines the refractive power of lenses?

1. Thermometer
2. Retinoscope
3. Microscope
4. Magnifying lens