sci10 task 2

Vector

A quantity described by a magnitude and direction.

Scalar

A quantity described only by magnitude.

Example of Vector

Force, Acceleration

Scalar

Temperature, weight

Vector addition

Square and add both vectors, then get the square root of.

Missing vector

Subtract the known sides, then find the square root.

Drawn force vector diagrams

1. Identify objects of interest

2. Identify all forces acting directly

3. Draw a dot to represent object

4. Draw a vector to represent each force, draw it in the direction of the exerted force and label it

Distance

Total length of the path traveled

Displacement

Change in position

Speed

Rate at which a object covers distance

Velocity

Rate at which an object changes

F=Distance

Forces acting in reverse of each other.

S>O

Positive direction (Displacement)

S<O

Negative direction (Displacement)

V>O

Moving in positive direction (Velocity)

V<O

Moving in negative direction (Velocity)

M/S to KM/H

Multiply by 3.6

KM/H to M/S

Divide by 3.6

Acceleration

Change in velocity is the difference between final velocity and initial velocity.

If V is greater than I

The objects accelerating

If V is less than I

The objects decelerating

M/S²

Measures acceleration