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WorksheetsEnergy Review
Total questions: 28
Worksheet time: 14mins
Energy in the form of motion is potential energy.
True
False, Kinetic
False, Mechanical
False, Thermal
According to the law of conservation of energy, mechanical energy can be changed to heat energy.
True
False, mass
False, momentum
False, life
A rock at the edge of a cliff has kinetic energy because of its position.
True
False, thermal
False, potential
False, radiant
When you put on the brakes of a bicycle, friction causes some of the mechanical energy to change to thermal energy.
True
False, speed
False, radiant energy
False, space
According to the law of conservation of energy, energy can be created or destroyed.
True
False, cannot
False, won't
False, has
Energy that is stored is kinetic energy.
True
False, thermal
False, Sound
False, potential
Energy stored in food you eat is chemical potential energy.
True
False, radiant
False, kinetic
False, mechanical
Elastic energy is the total potential and kinetic energy in a system.
True
False, radiant
False, mechanical
False, electric
Energy is measured in joules.
True
False, Newtons
False, kg
False, Watts
A book sitting on a shelf has gravitational potential energy.
True
False, chemical
False, kinetic
False, electrical
Friction changes the useful work of a machine into mechanical energy.
True
False, electric
False, chemical
False, thermal
The kinetic energy of an object increases as its ____ increases.
gravitational energy
potential energy
specific heat
velocity
Increasing the speed of an object ____ its potential energy.
does not affect
increases
decreases
changes
The SI unit for energy is the ____.
calorie
joule
meter/sec
kilogram
You can calculate kinetic energy by using the equation ____.
KE (J) = m (kg) * 9.8 m/s2 * h (m)
KE (J) = w (m) * h (m)
KE (J) = 1/2 m (kg) * v2 (m2/s2)
KE (J) = 9.8 m/s2 * 1/2 m (kg)
You can calculate gravitational potential energy by using the equation ____.
GPE (J) = 1/2m (kg) * 1/2h (m)
GPE (J) = m (kg) * 9.8 m/s2 * h (m)
GPE (J) = h (m) * 9.8 m/s2
GPE (J) = 1/2h (m) * w (m)
Which of the following devices does not make use of electrical energy?
upright piano
radio
toaster
digital camera
A bus engine transfers chemical potential energy into ____ so that the bus moves.
thermal energy
gravitational potential energy
electrical energy
kinetic energy
According to the law of conservation of energy, the total amount of energy in the universe ____.
remains constant
changes constantly
increases
decreases
If a weight lifter is holding barbells above his head, what does he have to do to perform work?
stand still
move barbells sideways
step forward
lower barbells
If an object has energy, this means that the object has the ability to cause ____________________.
nothing
change
movement
energy
If you double the velocity of an object, you increase its kinetic energy by a factor of ____________________.
one
two
three
four
Stored energy is called ____________________ energy.
kinetic
potential
thermal
radiant
A fire warms you by transferring ____________________ energy.
electrical
thermal
radiant
sound
On a swing your potential and kinetic energies change, but your ____________________ energy does not.
thermal
sound
mechanical
radiant
According to the law of conservation of energy, energy can change ____________________, but it cannot be created or destroyed under ordinary conditions.
direction
position
form
location
When you move your hand or foot, your body has converted potential energy into ____________________ energy.
radiant
sound
kinetic
mechanical
Work, like energy, is measured in ____________________.
kilograms
watts
joules
newtons
