tion v more m C01: Physical Quantities, Units and Measurements 8 The following shows a pencil. (a) pencil sharpened section Describe how you would use a piece of string and a rule to determine the circumference c of the unsharpened section of the pencil. [3] nd pupp e e E (b) The student's value for the circumference c is 2.5 cm. Suggest a source of error in determining the circumference of the pencil. [1] ntit ble Ec et (c) Show the volume V of the unsharpened section of the pencil is V = c²x [3] ΑΠ 55 sn ar 2 72 C: or n/ el D a 7 9 (d) Express the volume VE of the sharpened section of the pencil in terms of c and y. pilasi to leeries to rignal on [3] State any assumptions made. lau besser A student is required to measure the thickness of a ream of 500 sheets of A4 size paper. He is supplied with a plastic rule, a digital micrometer screw gauge and a pair of digital calipers. (a) Choose the instrument that is most suitable to measure the thickness of the ream of paper. Give two reasons for your choice. [3] (b) Choose the instrument that is most suitable to measure the thickness of a piece of printing paper. Give one reason for your choice. [2] C01: Physical Quantities, Units and Measurements 10 A student uses a rule to measure a thin piece of wire. wire 0 1 cm 2 3 4 5 5 6 7 8 9 10 11 12 13 14 15 (a) State two errors in the student's measurement of the length of wire. [2] The student records the length of the wire as 12.8 cm. [E] The student is asked to measure the thickness of the wire using a pencil and the same rule. Suggest how this can be done as accurately as possible. [4] (b) The student finds out that the density of the wire is 2.7 g/cm³. Express 2.7 g/cm³ in kg/m³. [2] to V emulov or worl? гавтоха [E11 The length of a sheet of plastic is measured using a 15 cm rule. eq 8 5 Imm 1 2 سيلينا 3 3 5 7 8 10 11 12 13 14 L ins 15 sem of beiupe stipib e elun olfastq e riliw bei inebulz A H com al Jari Inemundeni or ezoori (s) re the sheet of plastic
tion v more m C01: Physical Quantities, Units and Measurements 8 The following shows a pencil. (a) pencil sharpened section Describe how you would use a piece of string and a rule to determine the circumference c of the unsharpened section of the pencil. [3] nd pupp e e E (b) The student's value for the circumference c is 2.5 cm. Suggest a source of error in determining the circumference of the pencil. [1] ntit ble Ec et (c) Show the volume V of the unsharpened section of the pencil is V = c²x [3] ΑΠ 55 sn ar 2 72 C: or n/ el D a 7 9 (d) Express the volume VE of the sharpened section of the pencil in terms of c and y. pilasi to leeries to rignal on [3] State any assumptions made. lau besser A student is required to measure the thickness of a ream of 500 sheets of A4 size paper. He is supplied with a plastic rule, a digital micrometer screw gauge and a pair of digital calipers. (a) Choose the instrument that is most suitable to measure the thickness of the ream of paper. Give two reasons for your choice. [3] (b) Choose the instrument that is most suitable to measure the thickness of a piece of printing paper. Give one reason for your choice. [2] C01: Physical Quantities, Units and Measurements 10 A student uses a rule to measure a thin piece of wire. wire 0 1 cm 2 3 4 5 5 6 7 8 9 10 11 12 13 14 15 (a) State two errors in the student's measurement of the length of wire. [2] The student records the length of the wire as 12.8 cm. [E] The student is asked to measure the thickness of the wire using a pencil and the same rule. Suggest how this can be done as accurately as possible. [4] (b) The student finds out that the density of the wire is 2.7 g/cm³. Express 2.7 g/cm³ in kg/m³. [2] to V emulov or worl? гавтоха [E11 The length of a sheet of plastic is measured using a 15 cm rule. eq 8 5 Imm 1 2 سيلينا 3 3 5 7 8 10 11 12 13 14 L ins 15 sem of beiupe stipib e elun olfastq e riliw bei inebulz A H com al Jari Inemundeni or ezoori (s) re the sheet of plastic
University Physics Volume 1
18th Edition
ISBN:9781938168277
Author:William Moebs, Samuel J. Ling, Jeff Sanny
Publisher:William Moebs, Samuel J. Ling, Jeff Sanny
Chapter1: Units And Measurement
Section: Chapter Questions
Problem 80AP: Consider the equation y=mt+b, where the dimension of y is length and the dimension of t is time, and...
Related questions
Question
![tion v
more
m
C01: Physical Quantities, Units and Measurements
8
The following shows a pencil.
(a)
pencil
sharpened
section
Describe how you would use a piece of string and a rule to determine the
circumference c of the unsharpened section of the pencil.
[3]
nd pupp
e
e E
(b)
The student's value for the circumference c is 2.5 cm.
Suggest a source of error in determining the circumference of the pencil.
[1]
ntit
ble
Ec
et
(c)
Show the volume V of the unsharpened section of the pencil is V = c²x
[3]
ΑΠ
55
sn
ar
2
72
C:
or
n/
el
D
a
7
9
(d)
Express the volume VE of the sharpened section of the pencil in terms of c and y.
pilasi to leeries to rignal on [3]
State any assumptions made. lau besser
A student is required to measure the thickness of a ream of 500 sheets of A4 size paper.
He is supplied with a plastic rule, a digital micrometer screw gauge and a pair of digital
calipers.
(a) Choose the instrument that is most suitable to measure the thickness of the ream of
paper. Give two reasons for your choice.
[3]
(b) Choose the instrument that is most suitable to measure the thickness of a piece of
printing paper. Give one reason for your choice.
[2]](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F9aa52859-114a-4983-b7f3-67d5c7274750%2F316aa534-8115-4d17-bbc1-3b914dc3b1d6%2Fevg0d0e_processed.jpeg&w=3840&q=75)
Transcribed Image Text:tion v
more
m
C01: Physical Quantities, Units and Measurements
8
The following shows a pencil.
(a)
pencil
sharpened
section
Describe how you would use a piece of string and a rule to determine the
circumference c of the unsharpened section of the pencil.
[3]
nd pupp
e
e E
(b)
The student's value for the circumference c is 2.5 cm.
Suggest a source of error in determining the circumference of the pencil.
[1]
ntit
ble
Ec
et
(c)
Show the volume V of the unsharpened section of the pencil is V = c²x
[3]
ΑΠ
55
sn
ar
2
72
C:
or
n/
el
D
a
7
9
(d)
Express the volume VE of the sharpened section of the pencil in terms of c and y.
pilasi to leeries to rignal on [3]
State any assumptions made. lau besser
A student is required to measure the thickness of a ream of 500 sheets of A4 size paper.
He is supplied with a plastic rule, a digital micrometer screw gauge and a pair of digital
calipers.
(a) Choose the instrument that is most suitable to measure the thickness of the ream of
paper. Give two reasons for your choice.
[3]
(b) Choose the instrument that is most suitable to measure the thickness of a piece of
printing paper. Give one reason for your choice.
[2]
![C01: Physical Quantities, Units and Measurements
10 A student uses a rule to measure a thin piece of wire.
wire
0 1
cm
2
3
4
5
5 6 7 8
9 10 11 12 13 14
15
(a) State two errors in the student's measurement of the length of wire.
[2]
The student records the length of the wire as 12.8 cm.
[E]
The student is asked to measure the thickness of the wire using a pencil and the
same rule. Suggest how this can be done as accurately as possible.
[4]
(b) The student finds out that the density of the wire is 2.7 g/cm³. Express 2.7 g/cm³ in
kg/m³.
[2]
to V emulov or worl?
гавтоха
[E11 The length of a sheet of plastic is measured using a 15 cm rule.
eq
8
5
Imm 1
2
سيلينا
3
3
5
7
8
10
11 12
13
14
L
ins
15
sem of beiupe
stipib e elun olfastq e riliw bei
inebulz A
H
com al Jari Inemundeni or ezoori (s)
re the
sheet of plastic](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F9aa52859-114a-4983-b7f3-67d5c7274750%2F316aa534-8115-4d17-bbc1-3b914dc3b1d6%2Fbslyphj_processed.jpeg&w=3840&q=75)
Transcribed Image Text:C01: Physical Quantities, Units and Measurements
10 A student uses a rule to measure a thin piece of wire.
wire
0 1
cm
2
3
4
5
5 6 7 8
9 10 11 12 13 14
15
(a) State two errors in the student's measurement of the length of wire.
[2]
The student records the length of the wire as 12.8 cm.
[E]
The student is asked to measure the thickness of the wire using a pencil and the
same rule. Suggest how this can be done as accurately as possible.
[4]
(b) The student finds out that the density of the wire is 2.7 g/cm³. Express 2.7 g/cm³ in
kg/m³.
[2]
to V emulov or worl?
гавтоха
[E11 The length of a sheet of plastic is measured using a 15 cm rule.
eq
8
5
Imm 1
2
سيلينا
3
3
5
7
8
10
11 12
13
14
L
ins
15
sem of beiupe
stipib e elun olfastq e riliw bei
inebulz A
H
com al Jari Inemundeni or ezoori (s)
re the
sheet of plastic
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