What does physics study?
Matter, energy, and their interactions.
What is a hypothesis?
An educated, testable explanation or prediction.
What factor is changed during an investigation?
The independent variable.
What does mechanics study?
Motion and forces.
What is the SI base unit for length?
Meter (m).
What does accuracy describe in measurement?
How closely a measured value agrees with the accepted value.
What does precision describe in measurement?
How closely repeated measurements agree with one another.
How is a number expressed in scientific notation?
As a coefficient from 1 to 10 in magnitude multiplied by a power of ten.
What defines a derived unit in the SI?
A combination of SI base units.
What is 702.0 g in scientific notation, and how many significant figures does it have?
g, with four significant figures.
Answer 11 questions on Physics Foundations and Motion.
1. What does physics study?
2. A researcher investigates how electricity and magnetism are related. Which branch of physics best fits this work?
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