Lesson 1066 of 1524
Acceleration
The kinematic equations in this section are valid only for constant acceleration
Practice this chapterThe kinematic equations in this section are valid only for constant acceleration The kinematic equations show how time, displacement, velocity, and acceleration are related for objects in motion
Acceleration is the rate of change of velocity. Its magnitude is expressed in units of m/s 2
kinematic equations — the five equations that describe constant acceleration motion in terms of time, displacement, velocity, and acceleration. constant acceleration — acceleration that does not change with respect to time. kinematic equations in this section — valid only for constant acceleration. acceleration due to gravity — acceleration of an object that is subject only to the force of gravity; near Earth’s surface this acceleration is 9.80 m/s 2.
Worked example
What does “kinematic equations” mean in Acceleration?
- 1Use the wording this chapter gives for kinematic equations.
- 2The book says: the five equations that describe constant acceleration motion in terms of time, displacement, velocity, and acceleration.
- 3Do not use the meaning of constant acceleration. That term means acceleration that does not change with respect to time.
Result: the five equations that describe constant acceleration motion in terms of time, displacement, velocity, and acceleration
Why. That is the meaning this chapter gives for kinematic equations.
Do not swap kinematic equations and constant acceleration. kinematic equations means the five equations that describe constant acceleration motion in terms of time, displacement, velocity, and acceleration. constant acceleration means acceleration that does not change with respect to time.
Practice margin
This chapter
A fresh set from this chapter only. Choose 10 or 20. Multiple choice and fill-in, with no repeat inside the set.