Log inSign up for FREE
Library

[8th Grade] Week 6 Quiz

Last updated 11 months 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
  • Weight 重量
  • Mass 质量
1

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？

1

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

1

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

1

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。

  1. Oil (0.91 g/mL)
  2. Water
  3. Corn syrup (1.33 g/mL)
  4. Honey (1.36 g/mL)
1

You have a collection of rocks and you think one of them might be gold. You already know the density of gold is 19.3 g/cm3. You have measured the mass of each of the rocks already. What should you do next to find out if any of the rocks is gold? Use the following key words: water, displacement, difference, density, calculate
你收集了一些石头，你认为其中一块可能是金子。你已经知道金子的密度是 19.3 克/立方厘米。您已经测量了每块石头的质量。下一步该怎么做才能知道其中是否有金子？使用以下关键词：水、位移、差异