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WorksheetsWork, Energy, Power Review
Total questions: 20
Worksheet time: 7mins
When a roller coaster is at the top of a hill it has
high potential energy
high kinetic energy
low potential energy
equal amounts of kinetic and potential energy
When a roller coaster is at the bottom of a hill it has
high potential energy
high kinetic energy
low kinetic energy
equal amounts of kinetic and potential energy
The sum of potential energy and kinetic energy equals
work
transformation
thermal energy
mechanical energy
The spring constant of an object tells you?
What type of spring you are dealing with
How long the spring will be when it stretches
It gives you a value on how easy or hard it is to change the objects length.
A spring constant gives you how long the spring is at equilibrium
Thermal
Chemical
Sound
Nuclear
thermal
radiant
sound
mechanical
newton
watt
joule
newton
The faster you do work to move an object, the more power you have.
In which of these cases is NO work being done?
A car brakes
A student pushes a locked door that does not move
a student slides his chair into another room
A student throws a ball
A drawn bow possesses mechanical energy in the form of _______________. After the arrow is released, the energy is transformed into _________________.
potential energy; mechanical energy
elastic potential energy; kinetic energy
gravitational potential energy; kinetic energy
elastic kinetic energy; mechanical kinetic energy
A pole vaulter runs forward, plants his pole, rises in the air and lands. What point represents his greatest amount of gravitational potential energy?
when he initially lands
as he runs forward to plant the pole
At the highest point
Right when he leaves the ground
The rate at which work is done is called....
power
energy
mechanical energy
pulse
If an object is in freefall, the kinetic energy of the object is...
increasing
decreasing
constant
If an object is in freefall, the total mechanical energy of the object is...
increasing
decreasing
constant
A toy car rolls to a stop on level ground. Which is true?
KE increases
PE decreases
KE decreases
PE increases
KE decreases
PE = 0 joules
KE Increases
PE = 0 joules
Which of the following is an example of positive work?
Friction
Air resistance
Breaking
A push or pull
