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WorksheetsPE and KE
Total questions: 30
Worksheet time: 27mins
What is Energy?
The ability to do work or cause a change.
The ability not to do work or cause no change.
•Whenever work is done energy is __________ that object.
transferred to
moving away from
cicle
flow
What do YOU think the unit for energy is?
Watt
Kg
mass
Joules
Definition of KE is ______________
the energy of static
the energy of motion.
KE depends on 2 things............
Mass and Velocity
Mass and kg
Speed and Velocity
What will happen with Kinetic Energy when mass increases
and when velocity increases?
KE will stay the same
KE will drop
KE will increase
The formula for KE is .............
KE = ½ mv2
KE = mv2
KE = ½ mv
An object has kinetic energy because it is _______________.
square
round
static
in motion
GPE = ___________
mmh
mgh
mGh
MGH
Elastic Potential Energy: (EPE) is in_______________objects
bended
stretched / compressed
hot
long
which point has the most kinetic energy
g
f
b
d
A moving skateboard is an example of what kind of energy?
Potential
Kinetic
What type of energy is greatest when the cannonball is at point C?
kinetic energy
potential energy
elastic energy
awesome sauce
An automobile is sitting on a hill which is 20 m higher than ground level. Find the mass of the automobile if it contains 362,600 J of potential energy.
1.850 J
1850 g
18 g
1850 J
Calculate the potential energy of a rock with a mass of 55 kg while sitting on a cliff that is 27 m high
14 J
1453 J
15453 kg
14553 J
Find the mass of a car that is traveling at a velocity of 60 m/s North. The car has 5,040,000 J of kinetic energy.
280 kg
28 kg
2800 kg
2.8 kg
Solve for h.
PE= 74 J
mass= 3.8 kg
gravity= 9.8 m/s2
height= ?
1.99 m
199
19.9 m
19 m
Solve
PE= 52 J
mass= ?
gravity= 9.8 m/s2
height= 18 m
.29 kg
1.76 m
2.9 kg
176.4 m
Figure the PE.
mass= 3 kg
gravity= 9.8m/s2
height= 40m
1176
1716 J
1176 J
1761
Kinetic energy can be calculated using the formula
KE = 1/2mv2. What is the kinetic energy of a bicycle that has a mass of 20 kg and is traveling at a velocity of 10 m/sec?
10 J
100 J
1000 J
10000 J
Choose the answer that has the most ELASTIC POTENTIAL energy.
a rubber band pulled back all the way
a rubber band pulled back part of the way
a rubber band laying on a table
Which would have the LEAST gravitational potential energy (GPE)?
A ball sitting on the ground
Moon viewed from the Earth
An airplane flying 30,000 feet above the ground
A rock sitting on top of Mt. Everest
How could you increase the gravitational potential energy of an object without changing its mass and gravity?
Make the object larger
Lower the object towards the ground
Raise the object farther off the ground
Allow the object to roll on the ground
What is the kinetic energy of a 1,600kg Mustang travelling at 15 m/s (33mph)
180000 J
294 J
1225 J
3920000 J
