题目.(2013年安徽中考物理卷填空题第7题)如图1所示,静止在花朵上的是一种叫“全碳气凝胶”的固体材料,它是我国科学家研制的迄今为止世界上最轻的材料.一块体积为100 cm3的“全碳气凝胶”质量只有0.016 g,则它的密度为kg/m3.应该说,这是一道吸引眼球的题目.单是题目的插图就令人啧啧称奇,一朵娇嫩的花朵居然能够承受那么大的一块“全碳气凝胶”.首次看到该题目之后,无论是学生还 As shown in Figure 1, the still material on the flower is a kind of solid material called “All-Carbon Airgel”, which has been developed by Chinese scientists so far So far the lightest material in the world, a 100 cm3 “full carbon airgel” mass of only 0.016 g, its density is kg / m3. It should be said that this is an eye-catching topic. The illustrations on the subject are amazing, a delicate flower actually able to withstand such a big “The whole carbon aerogels.” For the first time to see the subject, both students