S104
Card Set Information
Author:
Bodmass
ID:
198735
Filename:
S104
Updated:
2013-04-05 09:20:58
Tags:
S104 Maths
Folders:
Description:
S104
Show Answers:
Find the value of 2
^{-5}
=
=
=
= 0.03125
A container has a volume of 0.216 m
^{3}
.
Express this volume in cm
^{3}
1 litre = 1 dm
= 10 cm × 10 cm × 10 cm = 1000 cm
So 1l = 1000 cm
^{3}
0.216m
= 216 litres
So 216 x 1000 = 216,000 cm
^{3}
A container has a volume of 0.216 m
^{3}
.
Express this volume in litres
1 litre = 1 dm
^{3}
So 1 litre =
m
^{3}
So if 1 litre is
of 1m then 1 m = 1000 l
So 0.216 m
^{3}
= 1000 × 0.216 litres
= 216 litres
A cubic container has sides each of length 0.800 m.
Calculate the volume of the container.
You should give your answer in m
^{3}
and to three decimal places.
= 0.8 x 0.8 x 0.8
= 0.512 m
^{3}
A floorboard has length 2.0 m and width 16 cm. What is its area?
2.0m x 16cm
= 2.0m x 0.16m
= 0.32m
^{2}
=
= ?
14.5.6 x 7.123 should be answered with how many figures?
2 significant figures
Use the least precise number of sf when multiplying
12.123 / 4.15 should be answered with how many figures?
3 significant figures
Use the least precise sf quantity when dividing
789.123 + 123.4 should be answred with how many figures
To 1 decimal place
Alwys use the least amount of decimal places when adding
789.123 - 456.1 should be answered with how many figures?
To 1 decimal place
Always use the least amount of decimal places when subtracting
How would you show what Power is equal to in an equation?
Power = Energy/time
If 500 Joules are delivered in 20 seconds how much power is delivered?
P = E/t
Power = 500J / 20s
25 W (J s
^{-1}
)
What is the density of an item with 100 kg mass & 20 m3 of volume?
Density = mass / volume
Density = 100 kg / 20 m
^{3}
= 5 kg m
^{-3}