Acceleration

Acceleration is the rate of change of velocity over time. In simpler terms, it's how quickly an object's speed or direction changes.

Formulas for Acceleration

There are two main formulas to calculate acceleration:

Acceleration = (Change in Velocity) / (Time taken)
Acceleration = (Final Velocity - Initial Velocity) / (Time taken)

Units of Acceleration

The standard unit of acceleration is meters per second squared (m/s²).

Types of Acceleration

There are different types of acceleration, including:

Linear Acceleration: Change in speed along a straight line.
Angular Acceleration: Change in rotational speed or direction.
Radial Acceleration: Change in direction of velocity in circular motion.

Study Guide

Here are some key points to remember when studying acceleration:

Acceleration is a vector quantity, meaning it has both magnitude and direction.
Acceleration can be positive (speeding up), negative (slowing down), or zero (constant velocity).
Understand the difference between average acceleration and instantaneous acceleration.
Practice using the acceleration formulas to solve problems.
Be familiar with real-world examples of acceleration, such as car acceleration, free-fall acceleration, and projectile motion.

◂Science Worksheets and Study Guides Eighth Grade. Fossils

Vocabulary/Answer key

Fossils

Vocabulary/Answer key

Fossils

The resources above cover the following skills:

Earth/Space Science: Students will use scientific skills and processes to explain the chemical and physical interactions (i.e., natural forces and cycles, transfer of energy) of the environment, Earth, and the universe that occur over time.

Earth History: Recognize and explain that fossils found in layers of sedimentary rock provide evidence of changing life forms.

Recognize how different types of fossils are formed, such as petrified remains, imprints, molds and casts.

Recognize and explain that the fossil record of plants and animals describes changes in life forms over time.