Note:
Use Q1, Q2, Q3 and Q5 from Speed Distance Time from GCSE and Q1/FSQ6 from Density Mass and Volume.
Q4
The mass of a piece of metal is 6.3 kg.
The volume is 2.4 m^3.
What is the density?
Answer: 2.625 kg/m^3
Wrong Answers:
0.381 kg/m^3
15.12 kg/m^3
3.15 kg/m^3
WORKING:
\rho=\dfrac{m}{v}
\rho=\dfrac{6.3}{2.4}=2.625 kg/m^3
Q7
The density of a piece of wood is 480 kg/m^3.
The mass of this material is 60 kg.
Calculate the volume of this piece of wood.
Answer: 0.125 m^3
Wrong Answers:
8 m^3
0.8 m^3
28.8 m^3
WORKING:
\rho=\dfrac{m}{v}
v=\dfrac{m}{\rho}=\dfrac{60}{480}=0.125 kg/m^3
Q8
The density of honey is 1.45 kg/l.
David uses 50 ml of honey when making a honey and chocolate tart.
What is the mass in kg of the honey that he uses?
Answer: 0.0725 kg
Wrong Answers:
72.5 kg
0.725 kg
29 kg
WORKING:
50 ml = 0.05 litres.
m=\rho\times v
m=1.45\times0.05=0.0725 kg