Ch 1.
S+T
S+T
What skills do scientists use?
Scientists use skills like observing, inferring, predicting, classifying, evaluating, and making models to study the world.
What is the difference between a cost and benefit?
A cost is a result,a benefit is a positive result.
What is volume?
Volume is the quantity of three-dimensional space enclosed by a closed surface, for example, the space that a substance (solid, liquid, gas, or plasma) or shape occupies or contains.
When is an object in motion?
An object is in motion when its distance from another object is changing. Whether an object is moving or not depends on your point of view.
How is work defined?
Work, in physics, measure of energy transfer that occurs when an object is moved over a distance by an external force at least part of which is applied in the direction of the displacement.
What are quantitative observations?
Quantitative observation is an objective collection of data which is primarily focused on numbers and values.
Why is scientific literacy important?
Science literacy is important because it provides a context for addressing societal problems.
What is mass?
Mass is both a property of a physical body and a measure of its resistance to acceleration when a net force is applied.
How do you calculate speed?
To solve for speed or rate use the formula for speed, s = d/t which means speed equals distance divided by time.
What is power?
Work, in physics, measure of energy transfer that occurs when an object is moved over a distance by an external force at least part of which is applied in the direction of the displacement.
What are qualitative observations.
Qualitative observations are made when you use your senses to observe the results.
How do you analyze scientific claims?
Scientific claims need to be falsifiable and empirically testable.
What is weight?
science and engineering, the weight of an object is the force acting on the object due to gravity.
How do you describe velocity?
Velocity is defined as a vector measurement of the rate and direction of motion. Put simply, velocity is the speed at which something moves in one direction.
What is mechanical adjective?
What attitudes can help you think scientifically?
curiosity,honesty,creativity,open mindedness,skepticism,good ethics and awareness of bias. wanting to learn more about what scientists study.
How do you research a scientific question?
What is density?
the degree of compactness of a substance.
How do you graph motion?
Plotting distance against time can tell you a lot about motion.
What is efficency?
The state or quality of being efficient.
What is scientific inquiry?
Scientific inquiry refers to the diverse ways in which scientists study the natural world and propose explanations based on the evidence derived from their work.
How does society affect the work of scientists?
Society helps determine how its resources are deployed to fund scientific work, encouraging some sorts of research and discouraging others.
What is an estimate?
An estimation is an approximation of a value. We estimate when we do not need an exact answer but just one that is close enough.
What is acceleration?
Acceleration is the rate of change of velocity.
How do inclined planes work?
An inclined plane is a simple machine that consists of a sloping surface connecting a lower elevation to a higher elevation