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Worksheets2.3 Work, Energy & Power
Total questions: 14
Worksheet time: 16mins
Which requires more WORK – a person WALKING up stairs OR a person RUNNING up stairs?
walking
running
they require equal work
no work is required for either because the movement is vertical
Which requires more POWER – a person WALKING up stairs OR a person RUNNING up stairs?
walking
running
they require equal power output
no power is required at all
Which does not illustrate kinetic energy?
It is expressed in Joule.
It depends upon the objects’ mass and speed.
It is the energy an object possesses due to its motion.
It depends upon the objects’ mass and objects’ height.
As speed increases, kinetic energy
Increases
Decreases
Stays the same
Increase then decrease
If a 4 kg cat is running at 3 m/s what is its kinetic energy?
18 J
18
12
12 J
The kid at the top of the roller coaster car pictured here has
100% Potential Energy
0% Kinetic Energy
75% Potential Energy
25% Kinetic Energy
50% Potential Energy
50% Kinetic Energy
0% Potential Energy
100% Kinetic Energy
Elastic Potential
Gravitational Potential
At halfway down the track
C
D
E
The formula for gravitational potential energy (GPE) in an object is U = mgh.
Which object will have the largest value for its GPE?
Work causes a change in
Sweat
Energy
Calories
Force
Where is kinetic energy at its maximum?
a
b
c
d
