LABORATORY APPARATUS

What is the purpose of using an optical bench set in scientific experiments?

• To measure temperature

• To study magnetic fields

• To investigate light properties

• To analyze chemical reactions

How does an optical bench set help minimize parallax error?

• By providing a stable platform for experiments

• By reducing the intensity of light source

• By increasing the magnification of lenses

• By measuring the speed of light accurately

Which of the following serves as a magnetic switch in a circuit?

• #13 Reed Switch

• #14 Button Switch

• #15 Slide Switch

• #16 light switch

It is a circuit component that is used to automatically switch on a lamp/bulb with the absence of light.

• Metal Detector

• Photosensitive Resistor

• IC for Alarming

• Snap connector

What is the primary advantage of using the PASCO Carbon Dioxide Sensor in scientific investigations?

• Reliable data collection

• Requires frequent calibration

• Limited sensitivity to environmental changes

• Designed exclusively for outdoor use

How would the levels of carbon dioxide and oxygen change during a period of intense photosynthesis (daytime)?

• Increased carbon dioxide and decreased oxygen

• Increased carbon dioxide and increased oxygen

• Decreased carbon dioxide and increased oxygen

• Decreased carbon dioxide and decreased oxygen

What is the most commonly used microscope?

• Electron Microscope

• SEM

• Compound Microscope

• TEM

When was the first microscope invented?

• 1950

• 1590

• 1951

• 1591

What are the 2 factors that influence force of friction?

• Weight and nature of surface

• Area and height

• Weight and height

• Area and height

What type of solution uses water as a solvent?

• Supersaturated solutions

• Saturated solutions

• Hypotonic solutions

• Aqueous solutions