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12 questions
The thermal energy of a substance is called the........
Maternal energy
External energy
Paternal energy
Internal energy
The internal energy of a substance is made up of these two parts:
elastic energy and potential energy
internal energy and vibration energy
potential energy and kinetic energy
kinetic energy and elastic energy
When we increase the kinetic energy of particles we also increase their .............?
mass
temperature
size
area
When a substance is getting hotter, which internal energy store is increasing?
gravitational
potential
kinetic
elastic
When we melt a substance we transfer energy to the substance to break the .................... between the particles.
bombs
moulds
wounds
bonds
The temperature at which a substance changes state from a solid to a liquid is called the ...............?
melting point
boiling point
evaporation point
turning point
Between which two points is iron a solid?
A to B
B to C
C to D
D to E
E to F
During which two sections of the graph does the temperature stay constant? (You must choose two answers)
A to B
B to C
C to D
D to E
E to F
What state is iron in between C and D?
solid
liquid
gas
plasma
At what point do the particles have the most kinetic energy?
A
C
D
F
What is the melting point of iron?
0 oC
1500 oC
2800 oC
3300 oC
What is happening at point D?
The iron has disappeared
The iron has stopped melting
The iron is getting colder
The iron is starting to boil