Explanation

• Force is the only option that can change an object's speed.
• According to Newton's second law of motion, force is directly related to an object's acceleration, which is the change in speed over time.

Explanation

• Laboratory thermometers typically have a lower temperature range than clinical thermometers, and are designed to measure temperatures in a laboratory setting.
• The lowest temperature in a laboratory thermometer is often around -10°C or even lower, depending on the specific thermometer.

Explanation

When handling a clinical thermometer, you should:

• Wash it before use (to ensure cleanliness and accuracy)
• Stay at one place (to avoid moving around and potentially breaking the thermometer)
• Place it in a cover after use (to protect the thermometer from damage and contamination)

But you should not Run while handling a clinical thermometer, as this could cause the thermometer to break or become damaged.

Explanation

Force can change an object's:

• Direction (by changing its trajectory)
• Size (by compressing or expanding it)
• Speed (by accelerating or decelerating it)

But force cannot change an object's mass.

Mass is a fundamental property of an object that remains constant, regardless of the forces acting upon it.

Explanation

A force is a Push or a Pull that causes movement.

Explanation

• Clinical thermometers, also known as medical thermometers.
• It typically have a narrow range of 35°C to 42°C.
• Which covers the normal body temperature range of humans (37°C ± 2°C).
• This allows for accurate measurements of body temperature in medical settings.

Explanation

• Laboratory thermometers typically have a range of 10°C to 110°C.
• It allowing for precise temperature measurements in a variety of laboratory settings.

Explanation

• Bacteria are unicellular organisms.
• They have cell wall but don't have proper nucleus.
• It doesn't contain chlorophyll.
• It is used to make medicines, yogurt and cheese.
• Algae are unicellular with proper cell wall and nucleus.
• It contain chlorophyll.
• It causes diseases: Cutleria, Ulva and Volvox.

Explanation

In 1969, Whittaker proposed a system of classification that divided all living organisms into five kingdoms:

1. Monera (bacteria and cyanobacteria)
2. Protista (protozoa, algae, and slime molds)
3. Fungi (mushrooms, molds, and yeasts)
4. Plantae (plants)
5. Animalia (animals)

Explanation

• The freezing point of water is 0°C (zero degrees Centigrade). 
• The boiling point of water is 100°C (one hundred degrees Centigrade).