When a chocolate bar is cut in half, its density is
halved
doubled
unchanged
If a loaf of bread is compressed its
density decreases
density increases
neither of these
Compared to a bar of pure gold, the density of a pure gold ring is
much more.
slightly more.
less.
the same.
If the mass of an object were doubled while its volume remained the same, its density would
be four times as great.
double.
be half.
stay the same.
Compared to the density of a kilogram of feathers, the density of a kilogram of lead is
less
more.
If you hold two objects that have the same weight density, then they
have equal mass densities.
may have unequal mass densities.
are equal in weight.
A strong spring is stretched 10 cm by a suspended block. If the block's weight is doubled, the spring will stretch to
15cm.
Its elastic limit.
40cm.
20cm.
An un-stretched hanging spring is 50cm long. Suspending a 100-N block from it increases its length to 60cm. Adding another 100-N block makes the spring's new length
100cm
60cm.
120cm
70cm
80cm
