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Fen bilimleri
5–6. sınıf
Gr 6 - L1 - Thermal Energy
Paylaşan: Amro Abdoun
56 dakika önce
10 S
0 kez alındı
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1
What is thermal energy?
A
The total energy of motion of all particles in a substance
B
The energy stored in the bonds between atoms
C
The temperature of a substance measured in degrees Celsius
D
The energy an object has due to its position
2
What happens to the particles in a substance when it is heated?
A
They stop moving completely
B
They change into different types of particles
C
They move slower and come closer together
D
They move faster and spread apart
3
When a substance is cooled, what happens to its temperature?
A
The temperature stays the same
B
The temperature first increases then decreases
C
The temperature increases
D
The temperature decreases
4
Which statement best explains why a balloon expands when placed in warm water?
A
The air particles inside lose energy and slow down
B
The air particles inside gain thermal energy and move faster, pushing outward
C
The balloon material melts and stretches
D
The water particles enter the balloon and fill it up
5
If you remove thermal energy from a gas, what will happen to the motion of its particles?
A
The particles will move slower
B
The particles will move in a straight line only
C
The particles will move faster
D
The particles will stop moving instantly
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