WorksheetsEnergy, Work, Machines
Total questions: 100
Worksheet time: 3hrs 2mins
Name
Class
Date
1.
Energy of motion is which type of energy?
a)
Potential
b)
Kinetic
c)
Sound
d)
Gravitational
2.
What type of energy is in this picture?
a)
Kinetic
b)
Potential
c)
Chemical
d)
Sound
3.
When plants convert the sun's energy into food, which type of energy is it?
a)
kinetic
b)
chemical
c)
thermal
d)
radiant
4.
What kind of energy is represented in this picture?
a)
Thermal
b)
Potential
c)
Nuclear
d)
Mechanical
5.
What kind of energy does this device use?
a)
Chemical
b)
Electrical
c)
Thermal
d)
Chemical
6.
What kind of energy is represented in the picture?
a)
Thermal
b)
Chemical
c)
Sound
d)
Nuclear
7.
A battery converts what type of energy to another?
a)
sound to kinetic
b)
light to heat
c)
mechanical to electrical
d)
chemical to electrical
8.
The glow sticks produce light for a short amount of time. The light from the glow stick is a conversion from what to what?
a)
thermal to light
b)
gravitational to potential
c)
radiant to electrical
d)
chemical to light
9.
Wind turbines and windmills convert what energy to another?
a)
Kinetic to electric
b)
Gravitational potential to electric
c)
Mechanical to potential
d)
Thermal to sound
10.
Work is:
a)
A transfer of energy by a force to move and object
b)
Something you get paid for
c)
Something you take home
d)
Makes you sweat
11.
What machine changes electrical energy into light and sound energy?
a)
battery
b)
lightbulb
c)
alarm clock
d)
apple
12.
On a roller coaster, where is maximum potential energy?
a)
At the bottom of a big hill
b)
When going around a corner
c)
When going upside down
d)
At the top of a big hill
13.
On a roller coaster, where is maximum kinetic energy?
a)
At the bottom of a big hill
b)
When going around a corner
c)
When going upside down
d)
At the top of a big hill
14.
The formula for work is:
a)
d = r x t
b)
p = m x v
c)
f = m x a
d)
w = f x d
15.
Energy that is stored in bonds between atoms is:
a)
Mechanical energy
b)
Chemical energy
c)
Kinetic energy
d)
Nuclear energy
16.
Energy caused by the movement in the particles of matter. It is a form of kinetic energy.
a)
Nuclear energy
b)
Sound energy
c)
Light energy
d)
Thermal energy
17.
Energy that comes from the nucleus of an atom. A form of potential energy.
a)
chemical energy
b)
Nuclear energy
c)
Sound energy
d)
Electrical energy
18.
According to which law of energy, energy can't be created or destroyed?
a)
First law of motion
b)
The law of tacos
c)
Laws of Energy
d)
law of conservation of energy
19.
The purpose of the panels is to change solar energy into ____________.
a)
light energy
b)
electrical energy
c)
chemical energy
d)
mechanical energy
20.
What machine changes chemical energy into heat, light and sound energy
a)
blender
b)
firecracker
c)
lightbulb
d)
apple
21.
2. A runner eats breakfast then he goes for a jog. Which of the following energy transformations occurred during the jog?
a)
Chemical energy to mechanical energy
b)
Mechanical energy to chemical energy
c)
Chemical energy to light energy
d)
Electrical energy to chemical energy
22.
A group of campers create a campfire by burning several wooden logs. Which statement best describes the energy transformations that occur when the logs burn?
a)
Chemical energy from the wood is converted into light and heat energy.
b)
Heat energy from the logs is converted into chemical and light energy.
c)
Chemical energy from the air is converted into mechanical and light energy.
d)
Heat energy from the air is converted into mechanical and light energy.
23.
A battery-powered flashlight is used by a camper so that she can she after dark on a camping trip. Which of the sequences below illustrates the transformation that occurs inside the flashlight?
a)
chemical energy → light energy → electrical energy
b)
chemical energy → electrical energy → light energy
c)
mechanical energy → chemical energy → electrical energy
d)
electrical energy → chemical energy → light energy
24.
The diagram to the right show a rocket just before and after it lifts off. The rocket is powered by a fuel mixture that is contained within the rocket. Which sequence best identifies the energy transfers that take place as the rocket lifts off?
a)
Mechanical → light → chemical
b)
Chemical → mechanical → thermal
c)
Thermal → chemical → light
d)
Chemical → thermal → mechanical
25.
When a pendulum swings, at which point is the Kinetic Energy at its Max?
a)
1
b)
2
c)
3
d)
4
26.
All forms of energy can be described as which two types of energy?
a)
Thermal and Kinetic
b)
Motion and Gravitational
c)
Kinetic and Potential
d)
Electrical and Chemical
27.
What unit is Energy measured in?
a)
Newtons
b)
Joules
c)
Grams
d)
Volts
28.
What are the two factors that affect kinetic energy?
a)
Time and Energy
b)
Power and Mass
c)
Mass and Velocity
d)
Time and Work
29.
What are the two factors that affect (Gravitational) Potential Energy?
a)
Gravity and Time
b)
Distance and Force
c)
Mass and Height
d)
Power and Gravity
30.
A device that converts Electrical Energy to Radiant energy.
a)
A Blender
b)
A Light Bulb
c)
A Bicycle
d)
A Balloon
31.
Name the Energy conversion from the Sun to a growing apple tree.
a)
Nuclear → Electrical
b)
Gravitational → Thermal
c)
Chemical → Motion
d)
Radiant → Chemical
32.
Which type of energy is represented by a rubber band.
a)
Thermal
b)
Elastic
c)
Gravitational
d)
Sound
33.
At which point is Potential Energy at its max?
a)
W
b)
X
c)
Y
d)
Z
34.
Name the Energy Conversion of a fan that is turned on.
a)
Chemical → Radiant, Thermal and Sound
b)
Electrical → Thermal, Sound and Motion
c)
Gravitational → Thermal, Sound and Radiant
d)
Chemical → Elastic, Motion and Sound
35.
Name the Energy Conversion of putting fuel into a jet plane for it to fly at a constant height on a trip to Hawaii.
a)
Chemical → Thermal, Radiant, Motion and Sound
b)
Gravitational → Nuclear, Radiant, Motion and Sound
c)
Sound → Thermal, Radiant, Motion and Chemical
d)
Chemical → Elastic, Radiant, Motion and Gravitational
36.
What form of energy is represented by a rock sitting at the top of a cliff?
a)
Electrical
b)
Chemical
c)
Elastic
d)
Gravitational
37.
Name the Energy Conversion of a Clothing Dryer.
a)
Chemical→ Thermal and Radiant
b)
Electrical → Elastic, Thermal and Sound
c)
Gravitational → Nuclear, Sound and Thermal
d)
Electrical → Thermal, Motion and Sound
38.
Name the energy conversion that occurs when Charlie rides his skateboard up to the top of the ramp. (Look closely to where the arrow is pointing.)
a)
Chemical → Gravitational
b)
Electrical → Radiant
c)
Gravitational → Elastic
d)
Thermal → Electrical
39.
__________ energy is the energy due to motion.
a)
Kinetic
b)
Potential
c)
Neither
d)
Both
40.
__________ energy is the energy that is stored.
a)
Kinetic
b)
Potential
c)
Neither
d)
Both
41.
When a roller coaster stops, the energy is destroyed.
a)
True
b)
False
c)
Can't be determined
d)
Both are correct
42.
What form of energy is represented by fusion on the Sun?
a)
Atomic / Nuclear
b)
Electrical
c)
Chemical
d)
Gravitational
43.
The stored energy found in food, muscles, batteries and fuel are examples of which form of energy?
a)
Radiant energy
b)
Chemical energy
c)
Sound energy
d)
Thermal energy
44.
A device that converts Electrical Energy and into Thermal Energy.
a)
A Battery
b)
A Hair Dryer
c)
A Bicycle
d)
Your Stomach
45.
Conduction is heat transfer by -
a)
Touch
b)
Currents
c)
Waves
d)
Metals
46.
Convection is heat transfer by-
a)
Touch
b)
Currents
c)
Waves
d)
Metals
47.
Radiation is heat transfer by-
a)
Touch
b)
Currents
c)
Waves
d)
Metals
48.
In what direction do hot liquids and gasses move?
a)
Side to Side
b)
Down
c)
Up
d)
Back and Forth
49.
In what direction to cold liquids and gasses move?
a)
Side to Side
b)
Up
c)
Down
d)
Back and Forth
50.
What type of heat transfer takes place through open space?
a)
Conduction
b)
Convection
c)
Radiation
d)
Currents
51.
What type of material makes the best conductor?
a)
Food
b)
Wood
c)
Styrofoam
d)
Metal
52.
What type of material makes the best insulators?
a)
Aluminum
b)
Copper
c)
Styrofoam
d)
Metal
53.
What type of heat transfer takes place in liquids and gasses?
a)
Conduction
b)
Convection
c)
Radiation
d)
Direct Contact
54.
What type of heat transfer takes place in solids?
a)
Conduction
b)
Convection
c)
Radiation
d)
Currents
55.
Which example below is an example of conduction?
a)
Boiling macaroni
b)
The attic is warmer than the basement
c)
The Sun heating the Earth
d)
Touching hot sand with your feet
56.
Which example below is an example of convection?
a)
Standing on a hot metal bridge
b)
The attic is warmer than the basement
c)
The Sun heating the Earth
d)
Touching hot sand with your feet
57.
Which example below is an example of radiation?
a)
Standing on a hot metal bridge
b)
The attic is warmer than the basement
c)
The Sun heating the Earth
d)
Touching hot sand with your feet
58.
As you touch a hot stove the heat transfers -
a)
from your hand to the stove
b)
from the stove to your hand
c)
It doesn't transfer
d)
from the stove to the air
59.
Hot objects begin to cool as-
a)
cooler air is transferred to the hot object.
b)
thermal energy in the object is transferred to the surrounding air.
c)
atoms in the object react with the oxygen in the air.
d)
thermal energy in the object cancels out energy in the air
60.
Convection could occur in which of the materials below?
a)
A block of wood
b)
The ocean
c)
A bowl of ice cream
d)
In space
61.
Which sentence explains why a cold metal spoon placed in a pot of boiling water becomes hot?
a)
Thermal energy is transferred from the spoon to the water.
b)
Thermal energy is transferred from the water to the spoon.
c)
Thermal energy in the water is transformed into kinetic energy in the spoon.
d)
Thermal energy in the spoon is transformed into kinetic energy in the water.
62.
What evidence demonstrates that convection currents are at work?
a)
Food coloring spreads throughout a glass when the water in the glass is stirred
b)
Smoke rises from a lighted candle wick
c)
The handle of a pan on a stove gets hot
d)
Your face feels warm sitting beside a fire
63.
This is an example of-
a)
Conduction
b)
Convection
c)
Radiation
d)
None of the above
64.
This is an example of-
a)
Conduction
b)
Convection
c)
Radiation
d)
None of the above
65.
This is an example of-
a)
Conduction
b)
Convection
c)
Radiation
d)
None of the above
66.
This is an example of-
a)
Conduction
b)
Convection
c)
Radiation
d)
None of the above
67.
This is an example of-
a)
Conduction
b)
Convection
c)
Radiation
d)
None of the above
68.
Heat transfer always goes from-
a)
Cold to Hot
b)
Hot to Cold
c)
Heat doesn't transfer
d)
Freezing to Cold
69.
If someone does 70,000 J of work with a power of 14,000 watts, what is the amount of time it was done in?
a)
5 seconds
b)
50 seconds
c)
0.200 seconds
d)
980,000,000 seconds
70.
If 150 Joules of work is needed to move a box 10 meters, what force was used?
a)
1500 N
b)
15 N
c)
1.5 N
d)
150 N
71.
How much work is done in holding a 15 N sack of potatoes while waiting in line at the grocery store for 3 minutes?
a)
15 J
b)
45 J
c)
0 J
d)
5 J
74.
A person weighing 600 N gets on an elevator. The elevator lifts the person 6 m in 10 seconds. How much power was used?
a)
360 W
b)
60 W
c)
3600 W
d)
600 W
73.
What is the equation for power?
a)
P = Work/time
b)
P = Force/time
c)
P = time/distance
d)
P = Work * time
74.
A person weighing 600 N gets on an elevator. The elevator lifts the person 6 m in 10 seconds. How much power was used?
a)
360 W
b)
60 W
c)
3600 W
d)
600 W
75.
800 Newtons of force moving a distance of 20 meters will be how much work done?
a)
40 J
b)
1,600 J
c)
400 J
d)
16,000 J
76.
What is the unit of measurement for Power?
a)
Joules
b)
Newtons
c)
Watts
d)
Meters
77.
45,000 Joules of work done in 90 seconds results in how much power?
a)
50 watts
b)
500 watts
c)
5000 watts
d)
4,050,000 watts
78.
An Xbox consumes 15.7 watts while in standby mode. If you leave it in standby mode for 86,400 seconds (one day), how much work was done?
a)
1,356,490 J
b)
1,356,480 J
c)
1,356,470 J
d)
1,356,460 J
79.
If you push a coffee mug 1.4 m using a force of 5 N, the work done on the mug is?
a)
7 J
b)
6 J
c)
8 J
d)
9 J
80.
If Keegan does 508 J of work pushing a cart 29 m, how much force did he apply?
a)
16.48 N
b)
18.31 N
c)
15.89 N
d)
17.52 N
81.
A person performs 1,500,000 J of work while walking. The person has a weight of 750 N. How far did the person walk?
a)
20 m
b)
200 m
c)
2000 m
d)
20,000 m
82.
How far does a car that weighs 5,000 N go if 18,000 J of work is done on it?
a)
3.8 m
b)
3.7 m
c)
3.2 m
d)
3.6 m
83.
What is power?
a)
transfer a force through a distance
b)
the rate of speed
c)
the rate of work being done
d)
transfer of space over time
84.
Work done = Force x _________
a)
a. distance
b)
b. acceleration
c)
c. velocity
d)
d. speed
85.
A Mustang has more horsepower than your mom's minivan. What does this mean?
a)
The Mustang has a higher topspeed.
b)
The minivan has a worse gas mileage.
c)
The Mustang can do work faster.
d)
The Mustang will die.
86.
Force is a _____ or _______
a)
simple or complex
b)
push or pull
c)
up or down
d)
in or out
87.
What is effort (input) distance?
a)
the force required by a machine in order to accomplish work (the force you put on the machine)
b)
the force which an effort force must overcome in order to do work on an object via a simple machine.
c)
the distance an input force moves a machine
d)
the output work times the input distance
88.
What is resistance (output) distance?
a)
the force required by a machine in order to accomplish work (the force you put on the machine)
b)
the force which an effort force must overcome in order to do work on an object via a simple machine.
c)
the distance an input force moves a machine
d)
the distance through which the output force is exerted
89.
What is the mechanical advantage of this pulley system?
a)
2
b)
3
c)
4
d)
5
90.
Using a lever, Joe is able to lift a 10,000 N car off of the ground with a force of 1000 N. What is the mechanical advantage of the lever?
a)
1
b)
10
c)
100
d)
1000
91.
How does a single fixed puled, like the one seen here, help you do work?
a)
changes the direction of the force
b)
increases the amount of applied force
c)
decreases the amount of applied force
d)
allows you to pull the rope a shorter distance
92.
The mechanical advantage of this inclined plane is.....
a)
2.4
b)
3.4
c)
4.4
d)
5.4
93.
Where should the fulcrum be placed in order for the student to use the least amount of effort possible?
a)
point A
b)
point B
c)
point C
d)
point D
94.
What is the mechanical advantage of the LAST inclined plane in the picture?
a)
1
b)
2
c)
3
d)
4
95.
Flagpole
a)
wedge
b)
pulley
c)
incline plane
d)
wheel and axle
96.
Stairs
a)
wedge
b)
pulley
c)
inclined plane
d)
wheel and axle
97.
Lightbulb
a)
wedge
b)
pulley
c)
incline plane
d)
screw
98.
What is the definition for mechanical advantage?
a)
the number of times a machine increases the input force
b)
the number of times a person can lift a weight
c)
how much work is done in a given amount of time
d)
the rate of doing work
99.
If you use a crowbar to get the lid off of a bucket, what simple machine are you using?
a)
Inclined Plane
b)
Pulley
c)
Wheel and Axle
d)
Lever
100.
Jeff is a landscaping contractor and lifts a rock weighing 600 pounds by wedging a board under the rock. Jeff weighs 150 pounds and puts all of his weight on the lever. How much mechanical advantage did the lever provide to Jeff in lifting the rock?
a)
0
b)
2
c)
4
d)
8
100 %
