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Worksheets9-physics
Total questions: 15
Worksheet time: 11mins
What is density?
Density tells you how much mass there is in certain area
Density tells you how much volume there is in a certain mass
Density tells you how much mass there is in certain volumes
Equation for density
(a)
Equation for mass?
m=D x V
m=D/V
m=VxD
m=D x a
m= D/a
how we measure the volume of water ( name of the instrument)
(a)
How we find the mass of solid object?
Using a balance
Using measuring cylinder
Using measuring glass
Equation for volume?
D=m/V
V=m x D
V= D/m
V=m/D
V=D x m
Equation for volume of the object in the photo
V=wlh
V=m/d
V=wl
V=a3
How levers work.
Because some forces produce a turning force
Because some forces produces a gravitational force
Because some objects produces friction force
Three main parts of lever
Effort, fulcrum , force
Load , force , pivot
Pivot , force , effort
Fulcrum, load, pivot
Equation for moment.
M=F x d
M=F x s
M=d x F
M=s x F
Unit for force?
N
Nm
mkg/s2
m
Kg
Unit for density
kg/m3
g/cm3
Kg/m
g/cm
Unit for volume
kg
m
cm2
m3
m2
Unit for moment
Nm
m
N
Ncm
Turning effect of force is called ......
Moment
Force
Mass
Gravitational force
Turning force
