7/25/2019 Form 4T - Assessment 22 - 28 or 29 May 2015
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Date: .
Assessment 22
No. 1.
a. Explain what do you understand by the
mass of an object.
[1
.....
.
b. !rite down an e"uation that relates mass
and wei#ht.
[1
c. An astronaut of mass 1$$ %# tra&els from
Earth to the 'oon. (omplete the followin#
table) showin# your calculations clearly)where&er needed.
[*
'ass+%# !ei#ht+,Astronaut on
Earth
1$$
-------Astronaut in
empty
space
-------- -------
pace for calculations
,o. 2. A student is carryin# out a laboratory
experiment to calculate the density of the
material that constitutes a piece of roc%
a. !hat is the e"uation for density/[1
b. 0e measures the mass rst usin# which
apparatus/....................................................[1
c. he roc% is an irre#ular material. 0e uses:
1 a measurin# cylinder)
.
.
2. some water and)
.....
.
,ame:
..
*. a piece of strin#
.
.
to nd the &olume.
3rie4y describe abo&e) in the space pro&ided)
what he does with each of the material.[*
,o. *. A student in&esti#ates how a sprin#
responds to loads bein# added to it.
Draw a typical extension5load #raph) labellin#
with the followin# terms:
1. 6lastic beha&iour
2. Elastic beha&iour
*. Elastic limit
7. 8imit of proportionality
[9
