Scientific Study

Which of the following is derived unit?

• Mole

• Ampere

• Hertz

• Kelvin

What is the SI unit of electric current?

• Ohm

• Ampere

• Watt

• Volt

Which of the following is a fundamental unit in the International System of Units (SI)?

• Newton

• Second

• Pascal

• Joule

What is the SI unit of energy?

• Watt

• Newton

• Hertz

• Joule

Tags

NGSS.HS-PS3-4

a.       A science experiment is conducted to investigate the effect of light intensity on the growth of plants. The researcher hypothesizes that increasing the light intensity will lead to increased plant growth. To ensure accurate and reliable results, the researcher sets up the experiment with the following design:    

Type 1: Plants exposed to high light intensity (12 hours of direct sunlight per day).

Type 2: Plants exposed to normal light intensity (6 hours of direct sunlight per day). Both types of plants are given the same amount of water and nutrients, and the temperature is kept constant. The height of the plants is measured after two weeks.

      What is the objective of including type 1 plants in this experiment?

• i) To control for the influence of varying light intensities on plant growth.

• ii) To ensure uniform water and nutrient supply to all plants.

• iii) To assess the hypothesis that elevated light intensity results in enhanced plant growth.

• iv) To maintain a consistent temperature throughout the experiment.

Tags

NGSS.MS-ETS1-1

NGSS.MS-LS1-5

A science experiment is conducted to investigate the effect of light intensity on the growth of plants. The researcher hypothesizes that increasing the light intensity will lead to increased plant growth. To ensure accurate and reliable results, the researcher sets up the experiment with the following design:    

Type 1: Plants exposed to high light intensity (12 hours of direct sunlight per day).

Type 2: Plants exposed to normal light intensity (6 hours of direct sunlight per day). Both types of plants are given the same amount of water and nutrients, and the temperature is kept constant. The height of the plants is measured after two weeks.

Which type of variable is Height of the plant?

• Independent Variable

• Dependent Variable

• Controlled variable

• Extrgenous Variable

Tags

NGSS.MS-LS1-5

A science experiment is conducted to investigate the effect of light intensity on the growth of plants. The researcher hypothesizes that increasing the light intensity will lead to increased plant growth. To ensure accurate and reliable results, the researcher sets up the experiment with the following design:    

Type 1: Plants exposed to high light intensity (12 hours of direct sunlight per day).

Type 2: Plants exposed to normal light intensity (6 hours of direct sunlight per day). Both types of plants are given the same amount of water and nutrients, and the temperature is kept constant. The height of the plants is measured after two weeks.

Which type of variable is intensity of light?

• Dependent Variable

• Independent Variable

• Controlled Variable

• Extraneous Variable

Tags

NGSS.MS-ETS1-1

1. In a research project analyzing the influence of caffeine on reaction time, what type of variable is reaction time?

• Independent Variable

• Dependent Variable

• Controlled Variable

• Extraneous Variable

What basic units are involved in Newton?

The variable whose value depends upon the value of another variable and the experimenter cannot predict or determine its value directly. is called......

• Independent Variable

• Dependent Variable

• Controlled

  Variable

• Unknown Variable