Term
| 2. Differentiate between accuracy and precision of a measurement. |
|
Definition
| Accuracy refers to how close a measurement is to the true or accepted value, while precision refers to how consistent and reproducible a measurement is. |
|
|
Term
| 3. Communicate the accuracy of a measurement or calculated value by the use of significant digits. |
|
Definition
| The number of significant digits used in a measurement or calculated value communicates its accuracy. The more significant digits, the more accurate the value is considered to be. |
|
|
Term
| 4. Use physics convention when rounding calculation results. |
|
Definition
| When rounding calculation results in physics, use the convention of rounding to the same number of significant digits as the least precise measurement used in the calculation. |
|
|
Term
| 5. Express values in scientific notation. |
|
Definition
| Expressing values in scientific notation involves writing them as a number between 1 and 10 multiplied by a power of 10. This makes it easier to work with very large or very small numbers. |
|
|
Term
| 6. Use prefixes with SI base units to express measurements in non-SI units. |
|
Definition
| Prefixes such as kilo-, mega-, milli-, micro-, etc., can be used with SI base units to express measurements in non-SI units. For example, kilometers can be expressed as 10^3 meters (1 km = 1000 m). |
|
|
Term
| 7. Differentiate between a proportionality statement and equation. |
|
Definition
| A proportionality statement indicates that two variables are directly proportional or inversely proportional to each other, while a proportionality equation gives the exact relationship between the variables in terms of a constant of proportionality. |
|
|
Term
| 8. Interpret proportionality statements and equations to relate the magnitudes of variables. |
|
Definition
| Proportionality statements and equations can be used to relate the magnitudes of variables and predict how they will change if one of the variables changes. |
|
|
Term
| 9. Present a step-by-step solution to a maths-based word problem. |
|
Definition
| A step-by-step solution to a maths-based word problem involves reading and understanding the problem, identifying the relevant variables and equations, applying the equations to solve for the unknowns, and presenting the solution in a clear and organized manner. |
|
|
Term
| 10. Employ deductive reasoning in applying generally accepted physics laws to specific circumstances. |
|
Definition
| Deductive reasoning involves using general principles or laws to make predictions about specific circumstances. In physics, this can involve using known laws and equations to predict the behavior of objects in specific situations. |
|
|
Term
| 11. Differentiate between distance and displacement. |
|
Definition
| Distance refers to the total path traveled by an object, while displacement refers to the change in position of an object from its initial position to its final position. |
|
|
Term
| 12. Differentiate between instantaneous speed and average speed. |
|
Definition
| Instantaneous speed is the speed of an object at a specific instant in time, while average speed is the total distance traveled by an object divided by the total time taken to travel that distance. |
|
|
Term
| 13. Differentiate between speed and velocity. |
|
Definition
| Speed refers to the magnitude of an object's motion, while velocity refers to the magnitude and direction of an object's motion. |
|
|
Term
| 14. Explain why acceleration can involve a change in direction, a change in speed or both. |
|
Definition
| Acceleration is defined as the rate of change of velocity. Since velocity involves both speed and direction, acceleration can involve changes in either or both of these quantities. |
|
|
Term
| 15. Mathematically relate acceleration and velocity. |
|
Definition
| Acceleration can be related to velocity through the equation a = (v_f - v_i) / t, where a is acceleration, v_f is final velocity, v_i is initial velocity, and t is time |
|
|
