Section 13.4
Solids
Practice Test
1.
In terms of the kinetic-molecular theory, why do substances expand when heated?
a.
The particles vibrate more and push other particles away.
b.
The particles vibrate less and push other particles away.
c.
The particles on the surface vibrate faster.
d.
The particles vibrate more, causing air pressure to compress the substance.
Hint
2.
What happens to a bimetallic strip when it is heated?
a.
it bends
b.
it becomes elastic
c.
its cohesive properties decrease
d.
it contracts
Hint
3.
Which example demonstrates elasticity?
a.
a broken stick
b.
a melted stick of butter
c.
a snapping rubber band
d.
a bent iron bar
Hint
4.
If an iron bar expands 0.1 cm when heated 20°C, how much would it expand if it were heated 40°C?
a.
0.05 cm
b.
0.2 cm
c.
1 cm
d.
0.1 cm
Hint
5.
Why is it important to take thermal expansion into account when building bridges?
a.
so the bridge materials can change state as the weather changes
b.
so the bridge materials don't deteriorate
c.
so the bridge materials expand and contract with the changes in weather
d.
so the bridge will not move at all
Hint
6.
Amorphous solids have no __________.
a.
shape
b.
liquid phase
c.
crystalline pattern
d.
volume
Hint
