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Heating Curve 1

Total questions: 15

Worksheet time: 15mins

Name
Class
Date
1.
What line segment represents only the solid state?
a)
A-B
b)
B-C
c)
C-D
d)
D-E
2.
In which segment is the kinetic energy remaining constant?
a)
A-B
b)
B-C
c)
C-D
d)
E-F
3.
What state(s) of matter are present at D-E?
a)
Solid-liquid
b)
Liquid
c)
Liquid-gas
d)
Gas-Solid
4.
Which of these conditions is always true for an exothermic process?
a)
They leave the surroundings feeling cold
b)
They release energy into the surroundings.
c)
They absorb energy from the surroundings
d)
The reactants gain energy as they form the products
5.
In which region(s) of the graph does a phase change occur?
a)
Region 1, 3, & 5
b)
Region 2 & 4
c)
Region 1 only
d)
Region 1 & 2
6.
Which process takes the longest to occur?
a)
melting
b)
boiling
c)
freezing
d)
heating the solid
7.
This curve indicates what about the heat energy?
a)
heat energy is being added or absorbed
b)
heat energy is being removed
8.

Thermal energy always moves:

a)

From a high temperature object to a lower temperature object.

b)

From a lower temperature object to a higher temperature object.

c)

From an object with lower kinetic energy to an object with higher kinetic energy.

d)

From an object of higher mass to an object of lower mass.

9.

True or false: melting and freezing occur at the same temperature.

a)

True

b)

False

c)

I don't know

10.

Which of the following terms identifies the change from a liquid to gas?

a)

Vaporization or Evaporation

b)

Condensation

c)

Deposition

d)

Sublimation

11.
Phase change from a solid to a gas.
a)
sublimation
b)
deposition
c)
condensation
d)
evaporation
12.
Phase change from a solid to a gas.
a)
sublimation
b)
deposition
c)
condensation
d)
evaporation
13.
What happens to the energy of particles in a substance as it changes from gas, to liquid, to solid?
a)
KE decreases
b)
KE increases
c)
KE stays the same
d)
KE goes up and then goes down
14.

When sample is being heated , but the temperature remains constant , then this heat is used to

a)

convert the state to a more energetic state

b)

increase the kinetic energy of particles

15.

How many states of matter are there , when ice is heated form -30.0 C to 0.0 C ?

a)

1

b)

2

c)

3