Why can't astronauts sit and sleep in space as they can on Earth?

Science Review Package - Final Semester

Quiz
•
Science
•
2nd Grade
•
Easy
Khánh Sín
Used 1+ times
FREE Resource
33 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
There is too much gravity in space.
There is no gravity in space.
There are no chairs and beds in space.
Answer explanation
Vì sao các phi hành gia không thể ngồi và ngủ trong không gian như trên trái đất?
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
It is .... for astronauts to sit and sleep in space.
easy
lazy
hard
Answer explanation
Thật khó để các phi hành gia ngồi và ngủ trong không gian.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Can gravity be felt in space?
No, it can't.
Yes, it can.
It can be seen working.
Answer explanation
Trọng lực có thể cảm nhận được trong không gian không?
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Gravity can not be seen, it can only be seen .... .
working
smiling
flying
Answer explanation
Trọng lực không thể nhìn thấy được, ta chỉ có thể thấy được nó hoạt động.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is gravity?
The force that pulls all objects towards the centre of the Earth.
The force that makes the objects move forward.
The force that makes the objects float away into space.
Answer explanation
Trọng lực là gì?
=> Là lực kéo tất cả các vật thể về phía trung tâm của trái đất.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What would happen if the Earth had no gravity?
Everything would stay in place.
Everything would float into space.
Everything would sink under the sea.
Answer explanation
Điều gì sẽ xảy ra nếu trái đất không có trọng lực?
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is friction?
an upwards push in the water
one object rubs against another
a force that holds everything close to Earth
Answer explanation
Lực ma sát là gì?
=> Là lực cản trở xuất hiện khi giữa các vật tiếp xúc, cọ xát với nhau.
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