Download Matching Vocabulary: Kinetic energy Potential energy Elastic

Matching Vocabulary:
Kinetic energy
Elastic potential energy
Work-Energy Theorem
Equations:
Potential energy
Gravitational potential energy (GPE)
Mechanical energy
_____________ An object which has mass is in motion with some velocity. Everything you see
moving has this.
Kinetic energy:
kinetic energy of an object is directly proportional to
the square of its speed. Ex: For a threefold increase in
speed, the kinetic energy will increase by a factor of nine
Quantity
Variable
Unit
Variable
Unit
Variable
Unit
____________The energy associated with the work done by the net force does not disappear after
the net force is removed or becomes 0, it is transformed into the potential or kinetic energy of the
system.
_____________ Mechanical energy is the energy that is possessed by an object due to its motion or
due to its position.
_____________The energy associated with an object due to the object’s position relative to a
gravitational source.
_____________The energy stored in a compressed or stretched spring.
_____________ Ability to do work by virtue of position or condition. In other words, the amount of
work the object capable of doing based on its position.
Gravitational potential energy:
There is a direct relation between gravitational
potential energy and the mass of an object and
the height of an object.
Quantity
Read each of the following statements and identify them as having to do with kinetic energy (KE),
potential energy (PE) or both (B).
Elastic potential energy:
Quantity
Which would ALWAYS be true of an object possessing a kinetic energy of 0 joules?
a. It is on the ground. b. It is at rest. c. It is moving on the ground
d. It is moving. e. It is accelerating. f. It is at rest above ground level
g. It is above the ground. h. It is moving above ground level.
Work-energy theorem:
Which would ALWAYS be true of an object possessing a potential energy of 0 joules?
a. It is on the ground. b. It is at rest. c. It is moving on the ground
d. It is moving. e. It is accelerating. f. It is at rest above ground level
g. It is above the ground. h. It is moving above ground level.
Calculate the height of a 65 kg object that possesses 54 J of potential energy
Calculate the speed of a 5.2 kg object that possesses 26.1 J of kinetic energy
Thinking about relationships:
A toy car is moving along with 0.40 joules of kinetic energy. If its speed is doubled, then its new
kinetic energy will be _______.
a. 0.10 J b. 0.20 J c. 0.80 J d. 1.60 J e. still 0.40 J
A young boy's glider is soaring through the air, possessing 0.80 joules of potential energy. If its
speed is doubled and its height is doubled, then the new potential energy will be _______.
a. 0.20 J b. 0.40 J c. 1.60 J d. 3.20 J e. still 0.80 J