STEM - Tổng kết lớp 4
Quiz
•
Science
•
9th Grade
•
Practice Problem
•
Easy
Test A
Used 16+ times
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32 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Khi robot cần di chuyển trên bề mặt tuyết, bộ phận quan trọng nhất là:
Khớp nối linh hoạt
Bánh răng quay
Thanh gạch trang trí
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Trong mô hình máy lọc không khí cần mô tơ để làm gì?
Phát nhạc
Tạo luồng gió hút không khí
Kết nối mạng Wi-Fi
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Để đo được tốc độ gió, robot cần sử dụng:
Gạch miếng
Cánh quay (quạt gió) và trục
Chốt gài
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Nếu muốn robot di chuyển theo đường dích dắc, ta cần lắp:
Khớp cứng
Bánh xe gắn lệch trục
Bánh răng đồng tâm
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Bánh răng lớn quay chậm hơn bánh răng nhỏ vì:
Có nhiều răng hơn
Nhẹ hơn
Không xoay được
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Chốt màu nào thường dùng để gắn 3 mảnh linh kiện?
Chốt vàng
Chốt xanh
Chốt đen ngắn
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Trong mô hình máy lọc không khí, lưới lọc được mô phỏng bằng:
Thanh cong
Tấm lọc trong khẩu trang
Bánh răng
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