Unit 5.- Forces. Natural Sc 4

Unit 5.- Forces

Some useful vocabulary

• Ancient, appliance, axis, ball, bar, beginning, better, between, bike, brake, brick, circular, clay, complex, contact, copy, danger, easy, effect, effort, electrical, electricity, energy, factory, force, fuel, glass, glasses, goods, gravity, ground, health, heavy, huge, inclined, industry, instrument, invention, iron, juice, kind, knowledge, lever, lid, load, long, machine, magnet, medical, microscope, mobile phone, model, modern, non-contact, nut, object, optical, orange, paint, paper, part, plane, point of support, printing press, pulley, pyramid, ramp, resistance, rigid, roller, rope, satellite dish, scientist, scissors, seesaw, shape, sharply, simple, slope, source, space, spaceship, steam engine, stick, stone, telescope, tweezers, weapon, well, wheel, wheelbarrow

• Attract, build, carry, classify, float, help, hunt, invent, kick, let, lift, move, open, pick up, prepare, prevent, pull, push, raise, release, rotate, throw, transport, turn. 

• Would you like to be …?; We should never / always …

• Present simple; Past simple;

Vocabulary of the unit

Contact force= fuerza de contacto

Non-contact force= fuerza de no contacto

Push force= fuerza de presión

Pull force= fuerza de tracción

Balanced force= fuerza equilibrada

Unbalanced force= fuerza desequilibrada

Magnetism = magnetismo

Magnetic field = campo magnético

Iron filings= limadura de hierro

attract= atraer

repel= repeler

Gravity= gravedad

Weight= peso

Mass= masa

Upthrust= fuerza de flotación

sink= hundirse

float= flotar

Earth = Tierra

Moon = Luna