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Lei de Arquimedes

QuestionAnswer
Um objecto pesa 8N fora de água e 5N quando está mergulhado em água. Qual o valor da impulsão? 3N
Um cubo pesa 6N e tem 5cm3 de Volume. Se colocarmos dentro de água, um cubo com o mesmo volume mas com o dobro do peso, a força de impulsão será..... igual, pois a impulsão só depende do volume e não do peso do objecto.
Um corpo pesa 5N fora de água. Se a impulsão for de 1N, qual é o peso do objecto dentro de água? 4N
Uma bola mergulhada em água tem um peso de 5N. Se a impulsão for de 4N, qual é o peso real da bola? 9N
O mesmo cubo mergulhado em água e em álcool,sofre uma impulsão menor em qual dos líquidos? álcool
A impulsão só depende de dois factores. Quais são? volume do objecto e densidade do fluido.
Um objecto tem um peso aparente de 8N. A força de impulsão quando mergulhado em água é de 2N. Qual é a massa do objecto? 1 Kg
Qual será o volume de um objecto que ao ser mergulhado em água sofre uma impulsão de 20N ? 2 dm3 ou 2 litro
Created by: anaalegria
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