
LIGHT
Quiz
•
Science
•
8th Grade
•
Practice Problem
•
Hard
Hoang Ong
Used 3+ times
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15 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The pictures below were drawn from one man's observations of the Sun's movement across the sky. Which picture shows the time of the day when the Sun was highest in the sky?
A
B
C
D
None of these
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Near the ceiling of a room the air is warmer. The warm air rises because of
Gần trần của một căn phòng, không khí ấm hơn. Không khí ấm áp bốc lên vì
Conduction
Convection
Radiation
Condensation
Melting
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The movement of water being heated in a pot on a stove is an example of
Chuyển động của nước được đun nóng trong nồi trên bếp là một ví dụ về
Conduction
Convection
Radiation
Condensation
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The reason behind to make the hollow table tennis ball to return to its normal condition after putting into hot water is that:
Lý do khiến quả bóng bàn trở lại trạng thái ban đầu sau khi nhúng vào nước nóng là bởi:
the plastic of the table tennis ball will melt quickly once touching heat and then return to the normal condition.
chất liệu dẻo của quả bóng bàn sẽ nhanh chóng tan chảy khi gặp nhiệt độ cao và trở lại trạng thái ban đầu.
the steam will penetrate into table tennis ball so the table tennis ball will rise to return to the normal condition.
hơi nước sẽ xâm nhập vào quả bóng bàn nên nó sẽ phồng và trở lại trạng thái ban đầu.
table tennis ball will rotate inside heat water so the rotation power helped the table tennis ball to become sphere.
quả bóng bàn sẽ xoay trong nước nóng nên năng lượng của sự xoay giúp nó trở lại hình cầu.
the air inside the table tennis ball will raise so the table tennis ball rise to return to the normal condition.
không khí bên trong quả bóng bàn sẽ nở ra nên nó phồng lên và trở lại trạng thái ban đầu.
the table tennis ball will become bigger and rounder but we cannot observe the bigger size by eyes.
quả bóng bàn sẽ trở nên to và tròn hơn nhưng ta không quan sát được bằng mắt thường.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
If the day were cool instead of hot, the rainwater on the streets would have disappeared?
Nếu thời tiết mát mẻ thay vì nóng, nước mưa trên đường sẽ bay hơi:
Slower
Faster
In the same amount of time/Với cùng 1 khoảng thời gian
Never
None of these
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The splitting of different colours of light in a prism is:
Sự phân tách các ánh sáng có màu sắc khác nhau trong lăng kính là:
Reflection of light
Phản xạ ánh sáng
Dispersion of light
Tán sắc ánh sáng
Diffraction of light
Nhiễu xạ ánh sáng
Refraction of light
Khúc xạ ánh sáng
None of the above
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What type of lenses does human eyes have similar function?
Mắt người có nguyên lí hoạt động tương tự loại thấu kính nào?
Convex mirror/Gương cầu lồi.
Plane mirror
Gương phẳng.
Concave mirror/Gương cầu lõm.
Convex lens/Thấu kính hội tụ.
Concave lens/Thấu kính phân kì.
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