Chapter 1 (B - 1.3 to 1.6) - Mass, Density, Volume

Question 1

What is the period

Answer 1

Time it takes for 1 oscillation

Question 2

formula of denstiy

Answer 2

mass/volume

Question 3

How to measure the volume of a regular object

Answer 3

use that shape’s formula for volume

Question 4

How to measure volume of an irregular object

Answer 4

Submersion and displacement method or displacement can

Question 5

Explain submersion (volume of irreg)

Answer 5

Pour water in a measuring cylinder
read and record the initial volume

lower the obj in the measuring cylinder
read and record the new volume of water

the difference is the volume of the object

Question 6

Explain displacement can (volume of irreg)

when is it used

Answer 6

Used when the obj is too big for the measuring cylinder

Fill the can to the level of its spout - done by overfilling the can then letting the surplus water run out
Lower the object into the can
Collect the displaced water in a measuring cylinder
the volume of water displaced is the volume of the object

Question 7

When will an object float

Answer 7

when it is less dense than the fluid (liquid or gas) around it

Question 8

when will an object sink

Answer 8

when it is more dense than the fluid around it