Natuurkunde

NatuurkundeSpeciﬁc gravity cubes For demonstrating the speciﬁc gravity of different materials. 6 different substances are included in the set: aluminium, iron, zinc, copper, lead and wood. The cubes measure 10 x 10 x 10 mm. Supplied in a plastic box. Item no. 150000 Speciﬁc gravity balls Take one in each hand and feel if they weigh the same. Can steel balls float? This set allows many interesting questions to be posed to stimulate students' imaginations. Item no. 152500 Hydrometer For determining the specific gravity of liquids. SG range: 1,000-2,000 g/cm3. Precision: 0.010 g/cm3. Length: 30 cm. Item no. 153010 Speciﬁc gravity blocks Box containing specific gravity blocks in 6 different materials: iron, lead, aluminium, zinc, copper and brass. Three sizes of each material are included. Item no. 150010 Speciﬁc gravity weights 3 different weights of the same volume: aluminium, copper and brass. The weights are equipped with a suspension hook and supplied in a plastic box. Item no. 151010 Speciﬁc gravity weight Brass weight for determining specific gravity and for measuring volumes. Height: 28 mm. Item no. 151080 Hydrometer with thermometer For determining the salt content of sea water. Temperature table included. Overall length: 26.5 cm. Item no. 153030 Alcohol meter Floating weight for measuring the alcohol content of liquids. Calibrated for 20 °C. Measurement range: 1 - 100 vol.% Graduation: 1/1 Length: 30 cm Item no. 153090 Speciﬁc gravity weights 6 different materials: aluminium, iron, zinc, bismuth, wood and cork. 3 of the weights have the same mass and diameter: aluminium, zinc and bismuth (41 gram, 22 mm). The other weights have different masses and sizes. The weights are easy to measure. Supplied in a plastic box. Item no. 151005 Thermometer, Galileo Based on the principle that the density of a liquid changes in proportion to its temperature. The temperature is displayed by means of small aluminium tags hanging from 7 small bulbs. The difference in the weight of the bulbs is less than 2/1,000 g, which yields a precision of 1 °C. When the temperature rises, the bulbs descend slowly; as the temperature falls, the bulbs rise up. The temperature is read from the tag on the lowermost floating bulb. Height: 44 cm. Measurement range: 18 to 24 °C Item no. 060003 6 6Side 2