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WorksheetsEnergy Test
Total questions: 50
Worksheet time: 52mins
The ability to do work by applying force is called
work
energy
force
net force
Which number shows kinetic energy at its maximum?
three
two
four
five
Stored energy or energy due to its position is called
mechanical energy
potential energy
kinetic energy
thermal energy
Which letter shows where is potential energy stored or at its maximum point?
Y
W
X
Z
Energy that transforms from potential to kinetic is neither_____ nor _______.
created, force
created, destroyed
force,motion
destroyed, law of conservation of energy
What is mechanical energy?
Mechanical energy is energy that gives us heat.
Mechanical energy is a form of energy.
Mechanical energy is a form of energy. It is all the energy that an object has because of its motion and its position.
Mechanical energy is made by the vibrations of objects.
________ is the transfer of energy from one particle of matter to another within an object or between two objects in direct contact
Conduction
Convection
Radiation
________ are materials that conduct heat well, like metals and tile flooring.
conductors
insulators
A positive and negative charge will....
Attract each other
Repel each other
Do nothing
What type of charge do electrons have?
No Charge
Positive
Negative
What type of circuit does the following diagram represent?
parallel
series
complex
non-repeating
Some materials can be temporarily magnetized ... Check all that apply
if put into a magnetic field
have an electric current through them.
when passing through an electric field.
when gamma rays intersect the material at a right angle.
In a parallel circuit, if one connection is broken, all of the connections stop working.
True.
False.
The picture showing the energy conversion
Electrical → light
is:
Work is done ___________
only when force is applied
on an object
cause the object to move
into the opposite direction
as applied force.
only when force is applied
on an object
cause the object to move
into the same direction
as applied force.
Formula of work:
W = F x t
W = F + t
W = F / d
W = F x d
Units of work is ___________
Newton (N)
watt (w)
joule (J)
Power is ___________
Is the rate of energy transfer.
Speed of doing work is work done in a certain time.
both
none
Power =
Work + time
Work / time
Work x time
Unit of power is:
Meters (m)
Watt (W)
Joules (J)
How can we increase efficiency?
Reduce the cold
Get more the friction
Drive slower
Reduce the friction
Which simple machine consists of a sloping surface, used for raising heavy objects, or sliding objects down?
Wedge
Inclined Plane
Pulley
Screw
Which of the items lifted below can be considered a wedge?
A Pencil
A hammer
An axe
Two inclined planes put together
Which simple machine is this?
Pulley
Wheel-and-axle
Inclined Plane
Lever
What simple machine makes work easier by using a wheel and rope to help move an object?
pulley
wheel & axle
inclined plane
What is this simple machine?
Inclined Plane
Lever
Gear
Wheel and axle
The material through which a wave travels
Mechanical Wave
Medium
Crest
Trough
What kind of wave is pictured below?
compressional wave
transverse wave
sound wave
mechanical wave
What type of wave is this?
Transverse
Longitudinal
Surface
Hair wave
What is a general definition of wave interference?
When a wave bounces off an object
When more than on wave meet and interact in the same medium
When a wave bends around a corner
When a wave creates static
In which of these types of media will sound travel fastest?
solid
liquid
gas
vacuum
Loudness of waves is measured in ____________.
Hertz
Decibels
Watts
meters/second
High frequency sounds have __________ pitch.
high
low
Which is true of a moving sound (doppler effect)?
Sounds moving toward a person are a higher frequency and heard louder.
Sounds moving toward a person are lower frequency and are heard softer.
Which is true of pitch?
the lower the pitch the lower the frequency
the lower the pitch the higher the frequency
the lower the pitch the greater the amplitude
the lower the pitch the lower the amplitude
Opposition to the flow of electrons
Current
Voltage
Resistance
Unit is Amps (A)
Current
Voltage
Resistance
This is the symbol for a(n) ..................?
single cell
bulb
battery
AC current source
Device that uses a magnet to point in the direction of earth's magnetic poles.
compass
magnetosphere
magnetite
electromagnet
