PHYSICS Flashcards
Science
A way of understanding the world, based on
observable evidence, reasoning, and repeated
testing.
Scientific Method
- Observation
- Question
- Hypothesis
- Prediction
- Experiment and analysis
- Conclusion
- Communication
3 Variables
- Dependent
- Independent
- Controlled
Dependent
The variable that is measured/observed in the experiment
Independent
The variable that is changed in the experiment
Controlled
The variable that stays the same in the experiment
Attitudes of scientist
- Curiosity
- Open-minded
- Objectivity
- Creativity
- Perseverance
Curiosity
Always trying to seek, discover, and know more.
Open Minded
To be able to look at different possibilities
Objectivity
Not influenced by feelings and declaring results based on facts.
Creativity
Thinking out of the box, finding new ways and
solutions
Perseverance
Never giving up
Physical quantity
A physical property that can be measured and
described/expressed by a number
Based quantity
Physical quantity that cannot be defined in any other physical quantity
Example based quantity
Length, mass, time, temperature, electric current
Derived quantity
Physical quantities which are obtained from the base quantities
Example derived quantity
Volume, density, velocity, force, acceleration
Scalar
A scalar is a physical quantity that has only a magnitude.
Vector
A vector is a physical quantity that has both a
magnitude and a direction.
Mass
solid:using a balance
Liquid=final mass-mass of empty container
Volume
regular solid: lengthxbreadthxheight
Irregular solid:Final volume - liquid volume
Liquid=using graduated cylinder
Density formula
mass/volume
