HW1 – Grade F/G
Homework on metric units and reading scales
1.
Write down the metric unit that would be best to use to measure the following.
(a)
The distance from London to Newcastle
........................................................
(1)
(b)
The weight of an adult male
........................................................
(1)
(c)
The length of a football pitch
........................................................
(1)
(d)
The amount of liquid in a can of coke
........................................................
(1)
(Total 4 marks)
2.
Give the values shown by the arrows on these scales,
(a)
60
70
80
90
cm
Answer .................................................................. cm
(1)
(b)
Answer ................................................................... kg
(1)
500
(c)
60
70
80
50
90
400
40
100
30
110
300
20
10
kg
200
120
Wind speed
130
mph
0
140
Answer ................................................................. mph
(1)
(Total 3 marks)
The Robert Smyth School
1
3.
(a)
Write down the length of this stick.
0
1
2
3
4
5
6
7
8
9
10
11
centimetres
Answer .................................................... cm
(1)
(b)
Tom has a toy car.
0
1
2
3
4
5
6
7
8
9
10
11
centimetres
What is its length in millimetres?
.....................................................................................................................................
Answer ......................................... millimetres
(2)
(Total 3 marks)
4.
(a)
Nail
0
1
2
3
4
5
cm
6
7
8
9
10
How long is the nail?
Answer ................................................................ cm
(1)
(b)
200
300
400
On this number line, mark the position of 270.
(1)
(Total 2 marks)
The Robert Smyth School
2
5.
(a)
What value is shown by the pointer in each of these diagrams?
10
20
30
40
50
(i)
grams
Answer ............................................................. grams
(1)
1
2
3
4
5
(ii)
centimetres
Answer ................................................... centimetres
(1)
(b)
Write your answer to part (a)(ii) in millimetres.
......................................................................................................................................
Answer .................................................... millimetres
(1)
(Total 3 marks)
6.
(a)
Part of a scale is shown in the diagram below. It measures weight in grams.
50
40
Write down the weight shown by the arrow.
Answer ............................................... grams
(1)
(b)
20
The scale below measures volume in centilitres.
Put an arrow against the point on this scale which shows 14 centilitres.
(1)
(Total 2 marks)
10
The Robert Smyth School
3
7.
The diagram shows a weighing scale.
2
3
1
kg
0
(a)
4
Put a circle around the correct reading.
2
1
1
2
5
10
2
1
4
2
1
2
2
3
4
(1)
(b)
Write your answer to part (a) as a decimal.
Answer ....................................................
(1)
(c)
The weight increases by 1 kg.
Mark the new position of the arrow on the diagram.
(1)
(d)
Convert 5
1
kilograms into grams.
4
.....................................................................................................................................
Answer ....................................................grams
(2)
(Total 5 marks)
8.
The Kitti’s hog-nosed bat from Thailand is the smallest known mammal.
One of these bats is 33 mm long to the nearest millimetre.
What is its smallest possible length?
Answer .......................................................... mm
(Total 1 mark)
The Robert Smyth School
4
1.
(a)
Kilometres
B1
Accept correct abbreviations. i.e. km
(b)
Kilograms
B1
kg
(c)
Metres
B1
m
(d)
Millilitres, cubic centimetres or centilitres
ml, cl or cm3
B1
[4]
2.
(a)
76
B1
76 ± 0.2
(b)
340
B1
340 ± 2
(c)
87
B1
[3]
87 ± 0.5
3.
(a)
8.4
B1
allow ± 1 mm
(b)
69
B2
allow ± 1 mm (68 to 70) B1 6.9 or (their 6.9) × 10 or digits ...
68 ... to ... 70 SCI 79
[3]
4.
(a)
6.4
B1
(b)
Mark in the middle third of
260–280
B1
[2]
5.
(a)
(i)
32
(ii)
3.2
B1
B1 ft
Follow through their (i) ÷ 10
(b)
32
B1 ft
Follow through their (ii) × 10
[3]
6.
(a)
48
B1
(b)
 at 14
B1
[2]
The Robert Smyth School
5
7.
1
4
(a)
2
(b)
2.25
(c)
3
(d)
1
marked on diagram
4
5.25 × 1000
oe
5250
B1
B1ft
B1
M1
A1
[5]
8.
32.5
B1
[1]
The Robert Smyth School
6