Physics H 01 Scientific Thinking

Measurements that are close to the actual value

• Accurate
• Precise
• Percent error
• Data

Measurements that are close together

• Accurate
• Precise
• Percent error
• Data

An approximation of a number, based on reasonable assumptions

• Estimate
• Anomalous data
• Reasonable data

This variable uses the vertical or Y axis in a line graph

• Dependent variable

• Independent variable

• Constant

This variable uses the horizontal or X axis in a line graph

• Dependent variable

• Independent variable

• Constant

The distance to the sun is 1.496 x 10¹¹ meters. The speed of light is 3.00 x 10⁸ m/s. A minute is defined to be 60 seconds. How many seconds does it take light to reach the Earth from the Sun?

You can solve this problem precisly using

• Dimensional analysis

• Estimation

• Reading fortune cookies

• Order of magnitude analysis

Expresses a fundamental principle of science

• Scientific law
• Scientific theory
• Problem statement
• Hypothesis

A well-substantiated explanation of some aspect of the natural world..

• Scientific law
• Scientific theory
• Problem statement
• Hypothesis

What is wrong with reporting a length of 22.4072643 cm using a common ruler?

• The percent error is too high
• There are not enough significant figures
• There are too many significant figures
• There is nothing wrong with this measurement

This measurement, 340 inches, has how many significant figures?

• 1
• 2
• 3