What is a molecule?

• The smallest particle of matter

• Indivisible particle

• Complex substance

• Mixture

What is diffusion?

• Spreading of particles

• Movement of particles

• Hardening of particles

• Evaporation of particles

What is the state of matter?

• Gas, force, mass

• Wood, water, pressure

• Gas, liquid, solid

• Water, steam, ice

What is the unit of measurement for distance or path?

• km/h; m/s; s

• m, dm, cm

• kg, g, t

• N, kN, mN

What is the formula for determining speed?

• v = s·t

• v = s / t

• s = v·t

• t = s / v

An automobile is traveling at a speed of 90 km/h. How far will it travel in 2 hours?

• 200 km

• 400 km

• 180 km

• 150 km

What are the units of mass?

• t; kg; g

• m; dm; cm

• hour, s, day

• N, kN, mN

What is the formula for density?

• ρ = s / t

• ρ = m / V

• s = v·t

• m = ρ·V

A body with a volume of 0.004 m³ is submerged in water. What is the mass of this body? (Density of water is 1000 kg/m³)

• 5 kg

• 8 kg

• 4 kg

• 6 kg

What is the weight force equal to?

• F = g·m

• F = S / t

• t = S / F

• F = m / g