Methods of Science
The study of the physical world: energy, matter and how they are related.
What is Physics
Regulated by the International Bureau of Weights and Measures in France, it establishes the standard of seven base quantities.
What is SI Unit?
A comparison between an unknown quantity and a standard.
What is a measurement?
The factor that is manipulated during an investigation.
What is an independent variable?
A representation of an idea, event, structure or object that helps people better understand it.
What is a model?
Although physicists do not follow a rigid set of steps to get an answer, their investigation follows similar steps.
What is the scientific method?
The base unit used to describe 'luminous intensity'.
What is candela?
The degree of exactness of a measurement.
What is precision?
On a graph, this is drawn as a straight line. [What type of relationship is this?]
What is a linear relationship?
A statement about nature that proves to be true in all cases
What is a scientific law?
This is a possible explanation for a problem using what you know and have observed.
What is a hypothesis?
Analyze & Sketch, Solve for the Unknown, Evaluate your Answer.
What are the steps in problem solving in Physics?
A measurement mistake that happens when you look at a scale or an object from an incorrect angle.
What is parallax error?
When a graph is not in a straight line, the variables are described as having a _________.
What is a nonlinear relationship?
A popular scientific theory that attempts to explain how life of Earth came to be.
What is the Big Bang Theory?
When the hypothesis is not supported after conclusions, we must go back to this stage.
What is 'form a hypothesis'?
The valid digits in a measurement. It often tells us how accurate a number is.
What are significant figures?
What is accuracy?
The central starting point where the horizontal x-axis and the vertical y-axis cross.
What is the origin?
What is the base quantity that has a base unit called mole?
What is 'amount of substance'?
An explanation of things or events based on knowledge gained from many observations and investigations
What is a scientific theory?
The method of treating the units as algebraic quantities that can be cancelled. We use this to check whether you have set up a problem correctly.
What is dimensional analysis?
A button or feature on a scale that zeros out the weight of a container so you measure only the contents inside.
What is tare?
In an experiment, a spring is stretched using a mass. The amount of stretch that the spring experiences describes the _______________. [Hint: a factor that can change or be measured]
What is the dependent variable?
A quantity that shows both magnitude and direction.
What is a vector quantity?