Unit 1: Kinematics

Distance is the total length of the path traveled by an object. It is a scalar quantity, meaning it has only magnitude and no direction.

Displacement is the change in position of an object from its initial position to its final position. It is a vector quantity, meaning it has both magnitude and direction.

The main difference between distance and displacement is that distance is the total length of the path traveled, while displacement is the change in position of an object.

Mass, temperature, time, speed, distance, energy, and power are all examples of scalar quantities.

Displacement, velocity, acceleration, force, and momentum are all examples of vector quantities.

Scalar quantities are represented by a single number and are usually measured in units such as kilograms, seconds, meters, and joules.

Vector quantities are represented by a vector, which is a quantity that has both magnitude and direction.

S = D/t, where S is speed, D is distance, and t is time.

V = x/t, where V is velocity, x is displacement, and t is time.

Speed is a scalar quantity that refers to how fast an object is moving, while velocity is a vector quantity that refers to the rate at which an object changes its position.

Acceleration is the rate of change of velocity with respect to time. It is a vector quantity, which means it has both magnitude and direction.

a = (v_f - v_i) / t, where a is acceleration, v_f is final velocity, v_i is initial velocity, and t is time.

The SI unit of acceleration is meters per second squared (m/s^2).

Uniform acceleration is when an object's acceleration is constant over time. This means that the object's velocity changes by the same amount in each unit of time.

Non-uniform acceleration is when an object's acceleration changes over time. This means that the object's velocity changes by different amounts in each unit of time.

Free fall is a special case of uniform acceleration where an object is falling under the influence of gravity.

d = (1/2)gt^2, where d is the distance fallen, g is the acceleration due to gravity, and t is time.

Uniformly accelerated motion is a type of motion where the acceleration of an object remains constant.

The BIG FIVE are a set of five equations used to solve problems involving uniformly accelerated motion.

To determine which way an object is moving