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WorksheetsEnergy
Total questions: 17
Worksheet time: 9mins
When two identical cars, one traveling twice as fast as the other, brake to a stop using old-fashioned brakes, the faster car will skid
the same distance
twice as far
four times as far
more than four times as far
After a car is raised in a service station, we say the car has increased
Gravitational Potential Energy
Kinetic Energy
Chemical Energy
Elastic Potential Energy
A model airplane moves three times as fast as another identical model airplane. Compared with the kinetic energy of the slower airplane, the kinetic energy of the faster airplane is
the same for level flight
twice as much
more than four times as much
Raising an auto in a service station increases its gravitational potential energy. Raising it four times as high increases its potential energy by
half
same
twice
four times
A dog and a mouse run down the road with the same KE. The faster moving one is the
can't say
both run at the same speed.
mouse
dog
A circus performer diving off a tall pole has just as much kinetic energy as potential energy relative to the ground, when she
reaches the bottom of her dive.
is half way to the bottom.
first begins her dive.
is one-quarter the way to the bottom.
Whereas impulse involves force and time, work involves force and
energy
distance
power
acceleration
The formula for calculating kinetic energy is 1/2 mass times_________squared
velocity
weight
inertia
time
Raising a heavy load requires work. Raising it twice as high requires
half as much work.
the same work.
twice the work.
four times the work.
The formula for calculating Gravitational Potential Energy is Mass X _____ X height
gravity
gravy
weight
volume
A pendulum bob swings to and fro. Its kinetic energy and its potential energy relative to the bottom of its swing are the same at
the bottom
one-quarter the vertical distance between the bottom and top of the swing.
one-half the vertical distance between the bottom and the top of the swing.
at the top of the swing.
What is the formula for calculating momentum
E=mc²
Ñ=F(€)
p=mv
m=mv
A moving freight car slams into another identical freight car at rest. The two cars stick together and move along the track. The speed of the coupled cars compared with the initial speed of the first car is
the same
one quarter
one half
double
The kinetic energy of a cannonball fired from a cannon is
less than the kinetic energy of the recoiling cannon.
greater than the kinetic energy of the recoiling cannon.
the same as the kinetic energy of the recoiling cannon.
none of these.
Mechanical Energy applies to
kinetic energy
potential energy
conservation of momentum
both potential and kinetic
An empty truck traveling at 10 km/h has kinetic energy. How much kinetic energy does it have when it its speed is doubled?
The same KE.
More than four times the KE.
Twice the KE.
Four times the KE.
If a charging elephant has kinetic energy, it must also have
work
potential energy
momentum
none of the above
