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Physics - Chapter 4
Question | Answer |
---|---|
What is the term for the combination of all the forces that act on an object? | net force |
In general, ____ is a state of balance | equilibrium |
____ is either a push or a pull. | force |
What is the name of the force that acts to resist the relative motion of objects or materials that are in contact | friction |
___________ is the reluctance of any body to change its state of motion. | inertia |
You get a newton of force when you multiply this unit by m/s2. | kilogram |
Another name for Newton's first law of motion | law of inertia |
a measure of an object's inertia | mass |
SI unit of force | newton |
This law states that every body continues in its state of rest or of motion in a straight line at a constant speed unliess acted on by a net force | Newton's First Law of Motion |
For an object at rest on a horizontal surface, the upward force that balances the weight of the object. | normal force |
Another name for the normal force | support force |
the measure of the pull of gravity on an object | weight |
ancient scientist that said all motion was natural or violent | Aristotle |
Scientist who was the first to say the earth moved around the sun | Copernicus |
Scientist who noticed that if you roll a ball down a ramp, it will rise up another ramp to the same height as it began its journey | Galileo |
Scientist that had 3 laws of motion | Newton |
mass times acceleration equals this | force |
its value is 9.81 m/s2 | acceleration due to gravity |