8. A student compresses a sponge. a) What happens to the volume of the sponge? Explain. b) What happens to its mass? Explain. c) What happens to the density? Explain.

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Chapter1: Units, Trigonometry. And Vectors
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8. A student compresses a sponge. a) What happens to the volume of the sponge?
Explain. b) What happens to its mass? Explain. c) What happens to the density?
Explain.
9. A rectangular block of metal has dimensions of .02 m x .03 m x .04 m. a) If the mass
of the block is .214 kg, find its density. b) Examine table 12.1 in your book. What metal
is this block? c) Find the weight density of the block.
10. Look up the density of gold in table 12.1 of your book (or online is fine.) a) What
would be the mass of 1 cubic meter of gold? b) Find the mass of a rectangular block of
gold with dimensions .035 m x .040 m x .025 m. c) What is the weight density of gold?
d) Find the weight of a rectangular block of gold with dimensions
.035 m x .040 m x .025 m.
11. When a force is applied to a spring it stretches by 8 cm. a) By how much would the
spring stretch if a force half as big was applied to it? b) What would be the stretch if a
force three times the original force was applied to the spring? c) What type of
relationship exists between the force and the amount the spring stretches?
Transcribed Image Text:8. A student compresses a sponge. a) What happens to the volume of the sponge? Explain. b) What happens to its mass? Explain. c) What happens to the density? Explain. 9. A rectangular block of metal has dimensions of .02 m x .03 m x .04 m. a) If the mass of the block is .214 kg, find its density. b) Examine table 12.1 in your book. What metal is this block? c) Find the weight density of the block. 10. Look up the density of gold in table 12.1 of your book (or online is fine.) a) What would be the mass of 1 cubic meter of gold? b) Find the mass of a rectangular block of gold with dimensions .035 m x .040 m x .025 m. c) What is the weight density of gold? d) Find the weight of a rectangular block of gold with dimensions .035 m x .040 m x .025 m. 11. When a force is applied to a spring it stretches by 8 cm. a) By how much would the spring stretch if a force half as big was applied to it? b) What would be the stretch if a force three times the original force was applied to the spring? c) What type of relationship exists between the force and the amount the spring stretches?
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