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Mass, Weight, Inertia, Density Mass-or-Weight - Coggle Diagram
Mass, Weight, Inertia, Density
Mass
What does a spring balance measure?
What is the definition of mass?
What is the unit and symbol for mass?
Link between mass and weight
Mass is a
scalar
, while weight is a
vector
.
Mass is
constant
regardless of the object's location, while weight depends on the
gravitational field strength
.
Link between mass and inertia
What does mass tell us about the inertia of an object?
Look at this simulation
and click "Motion"
Inertia is the object's resistance to changes in its state of motion.
The
greater the mass
of the object, the larger the force required to move it, the
greater its inertia
.
Weight
What is the definition of
weight
? Watch
the video
to revise!
What is the unit and symbol for weight?
What are the differences between mass and weight?
The formula for weight
is given by:
W
=
mg
What is a
gravitational field
?
Revise here:
What is the gravitational field strength?
The
amount of gravitational force per unit mass
unit: N/kg
symbol:
g
The value of
g
on Earth is
10 N/kg
Inertia
What is the definition of inertia?
Examples of inertia at work
How do we explain how inertia causes objects to move / stop moving?
(
WS4.1
)
Density
(
WS4.2
)
What is the definition of density?
How do we calculate the average density of a composite object?
How to convert between two different units for density?
Do heavy objects always sink?
No!
Watch this video
to see how heavy fruits can float while lighter fruits can sink.
How do we measure the density of irregular objects?
