Science 1206 Unit 3: Motion Key Concepts for Chapter 5 Test

These flashcards cover key concepts and definitions related to motion and significant figures, important for understanding Chapter 5 concepts.

Accuracy

The degree to which a measurement or calculation agrees with the true value.

Precision

The degree to which repeated measurements provide the same result.

Scalar

A quantity that only has magnitude (size) and no direction.

Vector

A quantity that has both magnitude and direction.

Acceleration

The rate of change of velocity per unit time.

Velocity

The speed of an object in a given direction.

Distance

A scalar quantity that refers to how much ground an object has covered.

Displacement

A vector quantity that refers to the change in position of an object.

Average Speed

The total distance traveled divided by the total time taken.

Uniform Motion

Motion at a constant speed in a straight line.

Speed

The distance traveled per unit of time, a scalar quantity.

Slope

The steepness of a line on a graph, calculated as the rise over the run.

d-t graph

A distance-time graph that represents the distance an object has traveled over time.

Scientific Notation

A way of expressing large or small numbers as a multiple of 10.

Significant Figures

Digits in a number that carry meaningful information about its precision.

Conversion

The process of changing a quantity from one unit to another.

Acceleration Units

Measured in meters per second squared (m/s²).

Speed Units

Measured in meters per second (m/s) or kilometers per hour (km/h).

Distance Units

Measured in meters (m) or kilometers (km).

Displacement Units

Measured in meters (m) or kilometers (km).

Time Units

Measured in seconds (s) or hours (h).