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WorksheetsEnergy
Total questions: 60
Worksheet time: 21mins
the ability to do work
(a)
the energy an object has due to its motion
(a)
energy that is stored as a result of position or shape
(a)
potential energy that depends upon an object's height above a reference point
(a)
the potential energy of an object that is stretched or compressed
(a)
the energy associated with the motion and position of everyday objects
(a)
the total potential and kinetic energy of all the particles in an object
(a)
the energy stored in chemical bonds
(a)
the energy associated with electrical charges
(a)
a form of energy consisting of changing electric and magnetic fields
(a)
the energy stored in atomic nuclei
(a)
the law that states that energy cannot be created or destroyed but can be changed from one form to another
(a)
a source of energy that exists in limited quantities and, once used, cannot be replaced except over the course of millions of years
(a)
rich deposits of hydrocarbon mixtures that formed from the remains of organisms
(a)
a source of energy that can be replaced in a relatively short period of time
(a)
energy obtained from flowing water
(a)
sunlight that is converted into usable energy
(a)
thermal energy beneath Earth's surface
(a)
the chemical energy stored in living things
(a)
a cell that generates electricity from a controlled reaction between hydrogen and oxygen
(a)
the practice of finding ways to use less energy or to use energy more efficiently
(a)
Which one(s) of the options below is not an example of kinetic energy?
thermal energy
electrical energy
electromagnetic energy
chemical energy
nuclear energy
Energy is the ability to do (a) .
Which of the following statements are true about work and energy?
Energy in food is converted into muscle movement.
Energy is present only when there is motion.
Both work and energy are usually measured in joules.
One joule equals one meter per newton.
What are the two main types of energy?
potential energy
kinetic energy
mechanical energy
chemical energy
thermal energy
How are work and energy related?
Energy is the rate of doing work.
Work is a form of energy.
Energy is the ability to do work.
Energy is created by work.
The acceleration of gravity on Earth is (a) m/s2.
If 2 joules of work is done in raising a 0.02-kilogram apple to your mouth, how far is it lifted?
(a)
What is the potential energy of a 30-kilogram child who climbs 15 meters up a tree?
(a)
What is the gravitational potential energy of a 5-kilogram rock that is 5 meters above Earth's surface?
(a)
What is the formula used to calculate for gravitational potential energy?
PE=m⋅g⋅h
PE=g⋅hm
PE=hmg
PE=mgh
The potential energy of an object that is stretched or compressed is known as (a) .
Gravitational potential energy of an object increases as its height increases.
True
False
An object's gravitational potential energy depends on its (a) , its height, and the acceleration due to gravity.
The work done by a rock climber going up a cliff decreases her potential energy.
True
False
Potential energy is energy that is stored as a result of (a) or shape.
A pitcher throws a 0.145-kg baseball at a velocity of 30.0 m/s. How much kinetic energy does the ball have?
(a)
Calculate the kinetic energy of a 0.25-kg toy car traveling at a constant velocity of 2 m/s.
(a)
Which one of these formulas can be used to calculate an object's kinetic energy?
KE=21mv2
KE=mv2
KE=mv2
You can determine the kinetic energy of an object if you know its mass and its volume.
True
False
The energy of motion is called (a) .
The (a) states that energy cannot be created or destroyed but it may change forms.
Which of the following examples has some form of potential energy?
a stationary wind-up toy with a compressed spring
a skier poised to take off at the top of a hill
a descending roller coaster car
a car driving on a flat road
For a mechanical change in an isolated system, the mechanical energy at the beginning equals the mechanical energy at the end of the process, as long as friction is negligible.
True
False
When an object slows down because of frictional force acting on it, an amount of energy is destroyed that is equivalent to the decrease in kinetic energy of the object.
True
False
At what point during a pole-vaulter's jump is his gravitational potential energy the greatest?
when he leaves the ground
at his greatest height
when he hits the ground
As an object falls, the gravitational potential energy of the object is converted into (a) .
A moving object slows down because friction causes a continual conversion of kinetic energy into __________.
thermal energy
potential energy
mechanical energy
nuclear energy
According to the law of conservation of energy, energy can be created or destroyed.
True
False
When a wind-up toy is set in motion, elastic potential energy that was stored in a compressed spring is converted into the (a) of the toy's moving parts.
Energy can be converted from one form to another.
True
False
Which of the following are examples of nonrenewable energy resources?
oil
coal
natural gas
biomass
flowing water
Renewable energy resources include hydroelectric, solar, (a) , wind, biomass, and nuclear fusion.
Resources that exist in limited quantities and, once used, cannot be replaced except over the course of millions of years are called (a) energy resources.
Hydrogen fuel cells generate electricity by combining hydrogen with oxygen.
True
False
One disadvantage of hydroelectric power is that it is among the most expensive energy sources.
True
False
Which of the following statements are true about renewable energy?
Wind and solar energy are both renewable energy resources.
Renewable energy resources can be used to generate electricity and to heat homes.
Renewable energy resources are always more efficient than nonrenewable resources.
An energy resource that can be replaced in a reasonably short period of time is called a(n) (a) resource.
Fossil fuels are evenly distributed throughout Earth.
True
False
Which of the following are fossil fuels?
oil
coal
trees
water
the sun
