ASVAB General Science Practice Test 145930

Questions 5
Topics Element, Fronts, Moon, Stationary Front, Vectors

Study Guide

Element

An element is matter than cannot be separated into different types of matter by ordinary chemical methods.

Fronts

An air mass is a large body of air that has similar moisture (density) and temperature characteristics. A front is a transition zone between two air masses.

Moon

Tides are caused by the gravitational interaction of Earth and the Moon.

Stationary Front

When two air masses meet and neither is displaced, a stationary front is created. Stationary fronts often cause persistent cloudy wet weather.

Vectors

Velocity and displacement are vector quantities which means each is fully described by both a magnitude and a direction. In contrast, scalar quantities are quantities that are fully described by a magnitude only. A variable indicating a vector quantity will often be shown with an arrow symbol: \(\vec{v}\)