图中的活动运用了哪些简单机械原理？
六年级简单机械
Quiz
•
Science
•
3rd - 5th Grade
•
Medium
CHONG Moe
Used 25+ times
FREE Resource
20 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
轮轴和螺旋
尖劈和杠杆
杠杆和齿轮
尖劈和轮轴
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
简单机械可分为几种？
5
6
7
8
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
以下哪一种工具属于第二类杠杆？
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
“斜面越长，斜面的倾斜度越小，就越省力。”
对
错
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
剪刀属于哪一类杠杆？
一
二
三
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
这种工具是以什么机械原理来操作？
螺旋
齿轮
轮轴
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
以下的工具都是以尖劈的原理操作，除了
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