Science Final
In science,________ may change
Facts
The scientific method is a method for _______________.
Gaining knowledge
If you move a substance from one container to another and its volume changes, its a ______.
Gas
The scientific spirit is based upon ______________________________.
Hypotheses of well known philosophers
In science, an answer to your question/problem is a __________.
Hypothesis
Scientists repeat experimental findings in order to ___________________________________.
Improve upon experimental design or eliminate unseen errors
Reducing friction on a machine _________________.
Increases its efficiency
When a pair of balanced forces acts on an object, the net force result is _________________.
Equal to zero
What is an example of constant acceleration due ONLY to a change in direction?
Traveling around a circular track
The type of force measured by a grocery store spring scale is ________.
Weight
The atomic mass of an element is __________________________________________________.
A weighted average of the masses of an elements isotopes
As you push a cereal box across a tabletop, the sliding friction acting on the cereal box ______________________________________.
Acts in the direction opposite of motion
How can you make the work output of a machine greater than the work input?
By increasing the output distance
What is an example of a physical change?
Sawing a piece of wood in half
v=d/s is the equation that defines _______.
Speed
Give an example that is a scientific hypothesis.
The moon is made of green cheese
When an unbalanced force acts on an object, __________________________.
The object accelerates
If experimental findings are not reproducible, __________________________________.
The results are not considered valid