Quizz 1: Physics, branches and scientific method

What is the best definition of physics?

• The study of living organisms

• The study of matter, energy, and the interactions between them

• The study of celestial bodies

• The study of chemical reactions

Which of the following best describes the relationship between physics and mathematics?

• Physics uses mathematics as a language and a tool to explain natural phenomena

• Mathematics is a branch of physics

• Physics and mathematics are brother and sister

• Mathematics only deals with numerical values and physics with theoretical concepts

Which of the following is a branch of classical physics?

• Quantum mechanics

• Thermodynamics

• Nuclear physics

• Relativity

Modern physics includes the study of which of the following?

• Mechanics

• Optics

• Electromagnetism

• Quantum physics

What is the main purpose of the scientific method?

• Memorize scientific facts

• Make predictions without evidence

• Systematically investigate natural phenomena

• Test hypotheses with personal opinions

What is the first step of the scientific method?

• Form a hypothesis

• Observation and a question

• Conduct an experiment

• Collection and analysis of the data

Which of the following is the correct sequence of the steps of the scientific method?

• Observation, experiment, hypothesis, data analysis, conclusion and communication

• Observation, Question, Research, hypothesis, experiment, data collection and analysis, conclusion and communication.

• Hypothesis, observation, data analysis, experiment, conclusion and communication

• Observation, question, experiment, data collection, experiment, hypothesis, analysis of the data

In an experiment to study plant growth, the amount of water provided is an example of what type of variable?

• Dependent variable

• Independent variable

• Control variable

• Random variable

In the same plant growth experiment, what would be considered the dependent variable?

• Type of soil

• Amount of sunlight

• Height of the plant

• Type of fertilizer

What is the function of a control group in an experiment?

• Receive additional variables

• Provide a baseline for comparison

• Ensure that all variables are dependent

• Influence the results of the experiment