[8th Grade] Week 6 Quiz

Last updated over 1 year ago

6 questions

1

Categorize these concepts as either relating to weight or to mass

将这些概念归类为与重量或质量有关的概念

measured in grams or kilograms
以克或公斤为单位
measures the force of gravity
测量重力
can be measured using a spring scale
可使用弹簧秤测量
can be measured using a balance and standardized objects (such as the standard 1 kg object)
可使用天平和标准物体（如 1 千克标准物体）进行测量
does not change if you measure it on a different planet
在不同的星球上测量也不会改变

{\frac{390 grams}{1} \times \frac{1000 grams}{1 kilogram}}

none of these

{\frac{390 grams}{1} \times \frac{1 kg}{1000 grams}}

{\frac{390 grams}{1} \div \frac{1 kilograms}{1000 gram}}

{\frac{390 grams}{1} \div \frac{1 grams}{1000 kilogram}}

Categorize these concepts as either relating to weight or to mass

将这些概念归类为与重量或质量有关的概念

measured in grams or kilograms
以克或公斤为单位

measures the force of gravity
测量重力

can be measured using a spring scale
可使用弹簧秤测量

can be measured using a balance and standardized objects (such as the standard 1 kg object)
可使用天平和标准物体（如 1 千克标准物体）进行测量

does not change if you measure it on a different planet
在不同的星球上测量也不会改变

Weight 重量

Mass 质量

Which illustrates the correct calculation to convert 390 grams into a quantity in kilograms?
将 390 克换算成千克的正确计算方法是什么？

{\frac{390 grams}{1} \times \frac{1000 grams}{1 kilogram}}

none of these

{\frac{390 grams}{1} \times \frac{1 kg}{1000 grams}}

{\frac{390 grams}{1} \div \frac{1 kilograms}{1000 gram}}

{\frac{390 grams}{1} \div \frac{1 grams}{1000 kilogram}}

Which of these quantities is a measurement of density?
其中哪个量是密度的测量值？

100 g/cm3

none of these measure density 这些都不能测量密度

1000 pounds/ft

10 kg/L

3.141 pounds per square inch

99 kg/m3

22.2 g/mL

The density of gold is 19.3 g/cm3. What is the mass of 200 cm3 of gold?

10.36 grams

38.6 grams

3860 grams

19.3 grams

none of these

Order these objects based on the order they would appear if they separated into layers in a cup.
根据这些物体在杯中分层的顺序排列它们。

Water

Corn syrup (1.33 g/mL)

Oil (0.91 g/mL)

Honey (1.36 g/mL)