1. Physics
An introduction

2. What is Physics?
Physics is the branch of science that involves the study of the physical world.
Physics is the study of matter and energy and their relationships.
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Section 1.1

3. Scientific Method
Scientific Method - the process of experimentation and explanation
No concept or model of nature is valid unless the predictions are in agreement with experimental results.
Hypotheses/Theories must withstand testing and may be modified or even rejected.
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Section 1.2

4. Galileo and the Scientific Method
Galileo is considered to be the father of modern experimental science.
The scientific method is a systematic way of going about solving a problem.
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5. The Senses Sight, Hearing, Smell, Taste, Touch
Sight and Hearing provide the most information to our brains about our environment.
Sensory Limitations – can be reduced by using measuring devices
Instruments extend our ability to measure and learn about our environment.
Our senses can also be deceived ->
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Section 1.3

6. Some Optical Illusions
Lines “a” and “b” are equal in length!
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Section 1.3

7. Optical Illusions The lines are all horizontal!
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Section 1.3

8. Some Optical Illusions
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Section 1.3

9. Some Optical Illusions
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Section 1.3