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WorksheetsEnergy and Simple Machines Test Review
Total questions: 68
Worksheet time: 34mins
Name
Class
Date
1.
A winding mountain road is an example of a(n)
a)
Lever
b)
Inclined Plane
c)
Wedge
d)
Wheel and Axle
2.
Wood burning, the sun and even electricity can be sources of _________
a)
Heat
b)
Solar
c)
Chemical
d)
Electrical
3.
If a book falls from a shelf, its energy is converted from potential energy to ______________ energy.
a)
Heat
b)
Electrical
c)
Potential
d)
Kinetic
4.
Energy of motion is ______ energy.
a)
Chemical
b)
Kinetic
c)
Potential
d)
Chemical
5.
An inclined plane with or two sloping sides forms a machine called a _______.
a)
Lever
b)
Ramp
c)
Wedge
d)
Fulcrum
6.
Stored energy is ________ energy.
a)
Chemical
b)
Potential
c)
Kinetic
d)
Thermal
7.
Radiant energy is ________ energy.
a)
Light
b)
Heat
c)
Chemical
d)
Nuclear
8.
A lever pivots about a point called a ___________.
a)
Balance
b)
Triangle
c)
Block
d)
Fulcrum
9.
Work is done when a force causes an object to _________.
a)
Cool Down
b)
Heat Up
c)
Stay Still
d)
Move
10.
What instrument is used to measure thermal energy?
a)
Spring Scale
b)
Thermometer
c)
Anemometer
d)
Balance
11.
Which is an example of thermal energy?
a)
Match
b)
Campfire
c)
Shirt
d)
Glass of Water
12.
This is energy from the sun.......
a)
Solar
b)
Heat
c)
Electrical
d)
Mechanical
13.
A bicycle would be an example of a ___________.
a)
Simple Machine
b)
Compound Machine
c)
Pulley
d)
Lever
14.
A slanted surface used to put an object in a truck is a(n) __________.
a)
Pulley
b)
Wedge
c)
Inclined Plane
d)
Lever
15.
What instrument is used to measure force?
a)
Balance
b)
Thermometer
c)
Wind Vane
d)
Spring Scale
16.
A grooved wheel that redirects force using a rope is a ____________.
a)
Pulley
b)
Wedge
c)
Wheel and Axle
d)
Inclined Plane
17.
An inclined plane wrapped around a cylinder post is a ___________.
a)
Wedge
b)
Ramp
c)
Screw
d)
Lever
18.
When two or more simple machines work together, this is called a ________________.
a)
Effort Machine
b)
Compound Machine
c)
Screw
d)
Simple Machine
19.
A bar that is free to pivot about a fixed point is a _______________.
a)
Wedge
b)
Ramp
c)
Fulcrum
d)
Lever
20.
A doorknob is an example of a ____________________.
a)
Lever
b)
Wheel and Axle
c)
Inclined Plane
d)
Pulley
21.
A bolt or a jar lid would be an example of what?
a)
A wheel and axle
b)
A screw
c)
A Lever
d)
An inclined plane
22.
The energy flowing in an electric circuit is what type of energy?
a)
Electrical
b)
Chemical
c)
Solar
d)
Heat
23.
Energy stored in particles of matter is called?
a)
Electrical Energy
b)
Heat Energy
c)
Solar Energy
d)
Chemical Energy
24.
Surrounding a magnet is a _______________ that applies a force without touching the object.
a)
Magnetic Domain
b)
Electric Current
c)
Magnetic Force
d)
Magnetic Field
25.
A magnet is useful in generating electricity because a magnetic force moves ____________.
a)
electrons
b)
protons
c)
neutrons
d)
metal atoms
26.
Heat always travels from _______ to _______.
a)
Least Dense to Most Dense
b)
Hot to Cold
c)
Cold to Hot
27.
What is the SI (metric) unit for force and weight?
a)
Joules
b)
Newtons
c)
Kilograms
d)
Tons
28.
Which is an example of a lever?
a)
Screw
b)
Wedge
c)
Stapler
d)
Ramp
29.
What is this a picture of?
a)
Spring Scale
b)
Balance Scale
c)
Wind Vane
d)
Sling Psychrometer
30.
Conduction is heat transferred by _______________
a)
Flow of material through a fluid
b)
Waves
c)
Direct Contact
d)
Water
31.
Convection is heat transferred by ____________________
a)
flow of a fluid through a material
b)
direct contact
c)
waves
d)
water
32.
Heat transferred by electromagnetic waves is ____________
a)
convection
b)
conduction
c)
electric
d)
radiation
33.
What unit of measure do you use when recording force?
a)
pounds
b)
newtons
c)
grams
d)
centimeters
34.
An example of a class 1 lever is a ________________
a)
baseball bat
b)
see saw
c)
broom
d)
wheel barrow
35.
An example of a class 2 lever would be a _____________
a)
baseball bat
b)
wheelbarrow
c)
see saw
d)
broom
36.
An example of a class 3 lever would be a _______________
a)
baseball bat
b)
see saw
c)
wheelbarrow
d)
scissors
37.
A knife would be an example of a ____________
a)
wedge
b)
inclined plane
c)
pulley
d)
lever
38.
Energy is the ability to cause ___________ or to do work.
a)
change
b)
motion
c)
force
d)
pressure
39.
When heat is transferred from the heating element to the pot on the stove, this is _________
a)
Convection
b)
Conduction
c)
Radiation
d)
Circulation
40.
The temperature goes up indicating that the particles are moving faster. What type of energy is this?
a)
mechanical
b)
electrical
c)
heat
d)
chemical
41.
When you eat, chemical energy is converted into _____________ energy.
a)
electrical
b)
solar
c)
potential
d)
mechanical
42.
A(n) __________ is formed when a wire in an electric circuit is wrapped around an iron core producing a magnetic field.
a)
electromagnet
b)
motor
c)
magnet
d)
generator
43.
This changes electrical energy to mechanical energy.
a)
magnet
b)
motor
c)
generator
d)
electromagnet
44.
This produces an electric current when a coil of wire wrapped around an iron core is rotated near a magnet. It helps produce electricity for our homes.
a)
motor
b)
magnet
c)
generator
d)
electromagnet
45.
Which would be an example of a lever?
a)
screw
b)
stapler
c)
inclined plane
d)
ramp
46.
In which situation is there NO work being done?
a)
A car being pushed 100m
b)
A mouse pushing a crumb across the floor
c)
a 25N force applied over 6m
d)
a 10N force applied to a stationary wall
47.
The process that keeps heat from being transferred between things:
a)
convection
b)
insulation
c)
conduction
d)
radiation
48.
Scissors are made up of what put together?
a)
inclined plane and a second class lever
b)
first class lever with a second class lever
c)
first class lever joined to two wedges
d)
two second class levers and a wedge
49.
Electromagnets are used in ___________ to produce a rotating magnetic field that turns a rotor.
a)
TVs
b)
computers
c)
generators
d)
motors
50.
Thermal underwear keeps you warm because it ______________
a)
prevents radiation
b)
is a poor insulator
c)
prevents conduction
d)
is a good conductor
51.
A push or pull on an object is a __________
a)
force
b)
energy
c)
power
d)
work
52.
Which statement best summarizes the law of conservation of energy?
a)
Heat flows from warm to cold
b)
When work is done, energy is lost
c)
The fewer # of valence electrons the better
d)
If energy disappears in one form, it must reappear in another
53.
Usable chemical energy in food begins as _____________ energy.
a)
light
b)
sound
c)
heat
d)
mechanical motion
54.
If you slam on your brakes on your bike, some of the mechanical energy is changed into _______ energy.
a)
light
b)
heat
c)
kinetic
d)
potential
55.
Which best describes a convection current?
a)
up and down
b)
to the right
c)
circular
d)
to the left
56.
Which is NOT an example of work being done?
a)
Lifting a bag off the floor
b)
Pulling a sled across a field
c)
pushing a broken down car but can't get it to move
d)
pushing a box up a hill
57.
A machine that changes only the direction of a force has a mechanical advantage of ____.
a)
1
b)
2
c)
10
d)
100
58.
The amount by which a machine multiplies an input force is called the ________________.
a)
fulcrum
b)
resistance force
c)
efficiency factor
d)
mechanical advantage
59.
A device that does work with only one movement and changes the size or direction of a force is a(n) __________.
a)
screw
b)
effort machine
c)
compound machine
d)
simple machine
60.
What two factors affect kinetic energy?
a)
mass and height
b)
mass and speed
c)
mass and power
d)
mass and pressure
61.
What 2 factors affect potential energy?
a)
mass and height
b)
mass and speed
c)
mass and power
d)
mass and pressure
62.
A lever can be designed to reduce the amount of force required to lift a weight by ____________
a)
pulling harder
b)
pulling lighter
c)
increasing the force
d)
increasing the distance from the fulcrum to the point where effort is applied
63.
Movable pulleys are used to ________
a)
reduce the effort force
b)
increase effort force
c)
make effort harder
d)
make work harder
64.
What is produced by moving a permanent magnet through a coil of copper wire?
a)
electricity
b)
light
c)
electromagnet
d)
radiation
65.
What is produced by moving a permanent magnet through a coil of copper wire?
a)
electricity
b)
light
c)
electromagnet
d)
radiation
66.
What equipment moves magnets through a coil of wire at power plants?
a)
amplifier
b)
circuit
c)
motor
d)
generator
67.
Where are bar magnets the strongest?
a)
north pole
b)
south pole
c)
both poles
d)
center of magnet
68.
What is the mechanical advantage of using a lever?
a)
Small input force to large output force
b)
Large input force to small output force
c)
small input distance to long output distance
d)
large input distance to small output distance
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