2.2 Quiz:Studying Matter And Energy

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Quizzes Created: 1 | Total Attempts: 98

Questions: 10 | Attempts: 98 | Updated: Mar 21, 2023

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Matter is seen as anything that has mass and occupies space. We cannot talk about matter without energy as energy can be used to produce matter. The quiz below is designed to help you revise what we covered in the previous class where we studies matter and energy. Give it a try!

Questions and Answers

1.

Which is not part of the scientific method
- A.
  
  Hypothesis
- B.
  
  Chillin'
- C.
  
  Drawing conclusions
- D.
  
  Experimation
Correct Answer
B. Chillin'

Explanation
The scientific method is a systematic approach used by scientists to investigate and understand the natural world. It involves several steps such as making observations, forming a hypothesis, conducting experiments, analyzing data, and drawing conclusions. "Chillin'" does not fit into the scientific method as it is not a step or process involved in conducting scientific research. Therefore, it is not part of the scientific method.

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2.

A theory or explanation that is based on observations and that can be tested is called a hypothesis
- A.
  
  True
- B.
  
  False
Correct Answer
A. True

Explanation
A hypothesis is a theory or explanation that is based on observations and can be tested. It is an essential part of the scientific method, as it allows scientists to make predictions and conduct experiments to gather evidence and support or refute the hypothesis. Therefore, the statement "A theory or explanation that is based on observations and that can be tested is called a hypothesis" is true.

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3.

Experiments __________________ always turns out as expected

Correct Answer
do not

Explanation
Experiments do not always turn out as expected because they involve variables and unknown factors that can influence the outcome. The nature of experimentation is to explore and test hypotheses, which means that unexpected results are common and can lead to new discoveries and insights. Therefore, it is important to acknowledge that experiments do not always yield the anticipated results.

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4
4.

A _____________ represents an object, a system, a process, or an idea

Correct Answer
model

Explanation
A model represents an object, a system, a process, or an idea. It is a simplified representation or simulation that helps us understand and analyze complex concepts or phenomena. Models can be physical, such as a scale model of a building, or conceptual, such as a mathematical equation that describes a biological process. They allow us to make predictions, test hypotheses, and gain insights into the behavior or characteristics of the real-world entities they represent. Models are widely used in various fields, including science, engineering, economics, and social sciences.

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4
5.

Sate the law of conservation of mass
6.

How does a hypothesis differ from a theory
7.

When a variable is kept constant from one experiment to the next it is called
- A.
  
  Science
- B.
  
  Chemistry
- C.
  
  Part of the scientific method
- D.
  
  Control
Correct Answer
D. Control

Explanation
When a variable is kept constant from one experiment to the next, it is referred to as a control. A control is an essential part of the scientific method as it allows researchers to compare the results of an experiment to a baseline or standard condition. By keeping one variable constant, scientists can isolate the effects of the other variables being tested, helping to determine the true cause and effect relationship.

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8.

____________________ was discovered by chance by William Perkin

Correct Answer
dye
synthethic dyes

Explanation
William Perkin discovered dye and synthetic dyes by chance.

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4
9.

Explain the scientific method in detail. Make sure to include all the steps.
10.

Dr. Roy Plunkett ________________ discovered teflon

Correct Answer
accidentally
didn't mean to

Explanation
Dr. Roy Plunkett discovered Teflon accidentally and didn't mean to. This implies that the discovery of Teflon was not a deliberate or intentional act by Dr. Plunkett. It suggests that he stumbled upon the discovery unexpectedly, possibly while conducting some other experiment or research. This accidental discovery adds to the significance of Dr. Plunkett's achievement in the scientific community, as it demonstrates the unpredictability and serendipity of scientific breakthroughs.

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4

2.2 Quiz:Studying Matter And Energy

Which is not part of the scientific method

A theory or explanation that is based on observations and that can be tested is called a hypothesis

Experiments __________________ always turns out as expected

A _____________ represents an object, a system, a process, or an idea

Sate the law of conservation of mass

How does a hypothesis differ from a theory

When a variable is kept constant from one experiment to the next it is called

____________________ was discovered by chance by William Perkin

Explain the scientific method in detail. Make sure to include all the steps.

Dr. Roy Plunkett ________________ discovered teflon