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Ciências
Anos 3–4
Gr6-W6-L3
Compartilhado por Amro Abdoun
há 1 hora
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1
How do gas particles move inside a container?
A
They only move when you shake the container.
B
They stay still in one place.
C
They move randomly and bump into each other and the walls.
D
They move in straight lines without ever hitting anything.
2
What causes gas pressure inside a container?
A
The color of the gas particles.
B
The gas particles pushing on the walls when they collide with them.
C
The temperature of the room outside the container.
D
The weight of the container itself.
3
In a syringe investigation, you pull the plunger back to make the space inside bigger. What happens to the gas pressure inside?
A
The pressure stays the same.
B
The pressure disappears.
C
The pressure decreases.
D
The pressure increases.
4
You push the plunger of a syringe to make the space inside smaller. Why does the pressure increase?
A
The gas particles get bigger.
B
The gas particles hit the walls more often because they are squeezed into a smaller space.
C
New gas particles are created.
D
The gas particles stop moving.
5
A gas is compressed into half its original volume at the same temperature. What do you predict will happen to the pressure?
A
The pressure will not change.
B
The pressure will become zero.
C
The pressure will be about twice as much.
D
The pressure will be about half as much.
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