Physics Final Revision Flashcard

Front

What is the average velocity over an infinitesimally small-time interval?

Back

Instantaneous velocity

Answer explanation

Instantaneous velocity refers to the average velocity over an infinitesimally small time interval, capturing the object's speed and direction at a specific moment.

Front

The slope of the tangent line on position vs. time graph is the ....................................

Back

instantaneous velocity

Answer explanation

The slope of the tangent line on a position vs. time graph represents the instantaneous velocity, as it indicates the rate of change of position with respect to time at a specific moment.

Front

The straight line through a pair of infinitely close points on a curve is

Back

tangent line

Front

............................ is the rate at which the value of function changes with time.

Back

Time derivative

Front

What is a vector that is the time derivative of velocity?

Back

Acceleration

Front

What is the motion with constant acceleration?

Back

Constant accelerated motion

Answer explanation

Constant accelerated motion refers to motion where the acceleration remains unchanged over time.

This results in a linear graph (straight line).

Front

What is the average acceleration over an infinitesimally small time interval?

Back

Instantaneous acceleration

Answer explanation

Instantaneous acceleration refers to the average acceleration over an infinitesimally small time interval, capturing the acceleration at a specific moment, unlike average acceleration which considers a larger time frame.

Front

What is the slope of the tangent line at each instant on a velocity vs. time graph?

Back

Instantaneous acceleration

Front

An object falling without resistance under the influence of Earth’s gravity is in ...............

Back

free fall

Answer explanation

An object falling under the influence of Earth's gravity, without resistance, is in free fall. This means it accelerates due to gravity, distinguishing it from uniform motion or constant velocity, which imply no acceleration.

Front

A constant acceleration toward the center of the earth is called

Back

acceleration due to gravity