Physics Chapter 2 Flashcards

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Questions and Answers

What is a coordinate system?

An equation to determine distance

A method to calculate velocity

A system that defines the zero point of the variable you are studying (correct)

A representation of motion over time

What is instantaneous velocity?

The speed and direction of an object at a particular instant.

What does magnitude refer to in physics?

Another term given for the size of a vector.

What is position in physics?

The location of an object relative to an origin. Signup and view all the answers

How is time interval calculated?

Final time minus initial time. Signup and view all the answers

What is average velocity?

Ratio of the change in position to the time interval during which the change occurred. Signup and view all the answers

What is the origin in a coordinate system?

A zero point in a coordinate system. Signup and view all the answers

What is a position-time graph?

A graph with time data on the horizontal axis and position data on the vertical axis. Signup and view all the answers

What is a vector?

A quantity with both magnitude and direction. Signup and view all the answers

What is a motion diagram?

A series of images showing the position of a moving object over equal time intervals. Signup and view all the answers

What is a resultant vector?

A vector that represents the sum of 2 or more other vectors. Signup and view all the answers

What does distance represent?

The length of a vector that represents how far an object is from the origin. Signup and view all the answers

What is a scalar?

A quantity that only consists of a magnitude without a direction. Signup and view all the answers

What is instantaneous position?

The location of an object at a particular instant. Signup and view all the answers

How is displacement calculated?

Final position minus initial position. Signup and view all the answers

What is average speed?

The absolute value of the slope on a position-time graph. Signup and view all the answers

What is a particle model?

A simplified motion diagram that shows the object in motion as a series of points. Signup and view all the answers

Study Notes

Coordinate Systems

Defines the zero point for the variables in motion studies.
Provides reference points for measuring and calculating positions and displacements.

Instantaneous Velocity

Represents speed and direction at a specific moment.
Allows for precise descriptions of motion in dynamics.

Magnitude

Refers to the size of a vector, crucial for understanding forces and motion.
Essential in differentiating between vectors and scalars.

Position

Indicates an object's location relative to a defined origin.
Integral in analyzing motion, as it affects velocity and displacement.

Time Interval

Calculated as the difference between final and initial time.
Critical for determining velocities and accelerations in motion.

Average Velocity

Derived from the change in position over the corresponding time interval.
Provides a measure of the overall effect of motion over time.

Origin

Acts as the reference point in a coordinate system, establishing a baseline for measurement.
Essential for defining positions and calculating displacements.

Position-Time Graph

Plots time on the horizontal axis and position on the vertical axis.
Visual tool for analyzing motion, illustrating relationships between time and displacement.

Vector

A quantity characterized by both magnitude and direction.
Fundamental in physics for representing forces, velocities, and accelerations.

Motion Diagram

Consists of several images showing an object's position at equal time intervals.
Useful for visualizing and interpreting the object's motion over time.

Resultant

A vector that combines two or more vectors into one.
Represents the overall effect of multiple forces or changes in position.

Distance

Measures the length of a vector, encapsulating how far an object is from the origin.
A scalar quantity, lacking directional information.

Scalar

Represents quantities described solely by magnitude.
Includes values like temperature, mass, and distance, without directional components.

Instantaneous Position

The precise location of an object at a given moment in time.
Useful for understanding dynamic scenarios in motion analysis.

Displacement

Calculated as the difference between final and initial position.
A vector quantity, indicative of the shortest path between two points.

Average Speed

Defined as the absolute value of the slope in a position-time graph.
Offers insight into how quickly an object is moving on average during a time interval.

Particle Model

Simplifies complex motion diagrams into points, representing an object in motion.
Facilitates easier analysis and understanding of dynamics in physics.

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Description

Explore key terms in Physics Chapter 2 with these flashcards. Each card helps reinforce your understanding of essential concepts like coordinate systems and instantaneous velocity. Perfect for studying and mastering the basics of motion and vectors.