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WorksheetsDBA Review
Total questions: 74
Worksheet time: 39mins
Name
Class
Date
1.
The Law of Conservation of Energy states:
a)
Energy can created or destroyed but not transformed
b)
Energy cannot be created or destroyed, it can only transformed
c)
Energy can't be created, destroyed or transformed
2.
Which energy transformation below matches?
Green plants?
Green plants?
a)
chemical to mechanical
b)
chemical to heat
c)
solar to chemical
3.
Potential or kinetic?
Stretched bow and arrow?
Stretched bow and arrow?
a)
kinetic
b)
potential
4.
Potential or kinetic?
Running?
Running?
a)
potential
b)
kinetic
5.
What characteristic do all renewable resources share?
a)
Produced by waste products
b)
Form underground from dead organisms.
c)
Replaced in a short period of time
d)
Allow energy to pass through them easily
6.
Which of the following is a fossil fuel?
a)
Wind
b)
Coal
c)
Solar
d)
Biomass
7.
Petroleum and natural gas form from...
a)
strong winds
b)
cooled magma
c)
radioactive materials
d)
remains of plants and animals
8.
Hydroelectric power produces electricity using.....
a)
Wind
b)
Sunlight
c)
Moving water
d)
Dung
9.
The careful use of a resource is....
a)
recycling
b)
pollution
c)
depositing
d)
conservation
10.
Energy from the sun is known as.........
a)
hydroelectric energy
b)
geothermal energy
c)
solar energy
d)
wind energy
11.
The energy resource that is most affected by change in weather is_____________?
a)
geothermal
b)
wind
c)
nuclear
d)
natural gas
12.
The cleanest burning fossil fuel is ______.
a)
coal
b)
oil
c)
wind
d)
natural gas
13.
Which of the following is a nonrenewable resource?
a)
milk
b)
coal
c)
biomass
d)
water
14.
Water is renewable because it.......
a)
can be frozen
b)
important to all life
c)
can be replaced constantly
d)
can evaporate
15.
Fossil fuels are classified as nonrenewable because they.......
a)
require expensive equipment
b)
take millions of years to replace
c)
can be found all over
d)
provide all the energy we use
16.
What is biomass?
a)
energy from the sun
b)
energy from water
c)
energy from wind
d)
energy from plant and animal waste
17.
What are two advantages of geothermal energy?
a)
cheap and a lot pollution
b)
expensive and a lot of pollution
c)
cheap and little pollution
d)
expensive and little pollution
18.
What is a disadvantage to Hydroelectricity?
a)
lots and lots of pollution
b)
Kills wild bird population
c)
Radioactive waste
d)
Increases potential for flooding
19.
What type of fossil fuel is mined from the ground?
a)
wind
b)
coal
c)
biomass
d)
air
20.
The type of energy that cattle create is ________?
a)
biomass
b)
solar
c)
natural gas
d)
nuclear
21.
If a river is located in a deep canyon, and has changing amounts of water , how can this be developed as an energy source?
a)
A dam could be built to store water
b)
A well could be dug to hold the water
c)
Wind turbines could be built on the banks.
d)
You could fish in the river.
22.
How will this object move?
a)
It won't move.
b)
It will move to the right.
c)
It will move to the left.
d)
It will move up.
23.
How will this object move?
a)
It won't move.
b)
It will move to the right.
c)
It will move to the left.
d)
It will move in both directions.
24.
What is the net force?
a)
30 N left
b)
25 N right
c)
5 N left
d)
55 N right
25.
What is the net force?
a)
40 N left
b)
0 N Balalnced
c)
400 N right
d)
40 N right
26.
Which could be an example of an unbalanced force?
a)
A plate sitting on a dining table
b)
A ball at the top of a hill that is not moving
c)
Earth orbiting the Sun
d)
A baseball that has been thrown to home plate.
27.
Calculate the Net Force.
a)
60N, Left
b)
40N, Right
c)
0N
d)
60N, Right
28.
Calculate the Net Force.
a)
40N, Left
b)
40N, Right
c)
0N, Balanced
d)
75N, Right
29.
You and your dad are moving the couch from one side to another. Your dad pushes with a force of 35 N to the right and you push with a force of 25 N right. What is the net force on the couch?
a)
60 N right
b)
10 N left
c)
60 n right
d)
50 N left
30.
What is the net force?
a)
10 N
b)
0 N
c)
25 N
d)
1 N
31.
Which pulley is least effective?
a)
double pulley
b)
crane
c)
double triple pulley
d)
fixed pulley
32.
Is it easier to pull using a single pulley or is it easier to use multiple pulleys working together?
a)
multiple pulleys
b)
single pulley
33.
More pulleys means more effort is needed to lift a piano.
a)
True
b)
False
34.
Which inclined plane makes work easiest?
a)
A very steep one
b)
A very long one
c)
A very wide one
d)
A very skinny one
35.
Is it easier to push a heavy object up a ramp or to lift a heavy object onto a truck?
a)
Push
b)
Lift
36.
Which of the following is an inclined plane?
a)
Saw
b)
Lightswitch
c)
Waterpark slide
d)
iPad
37.
How can and inclined plane help you?
a)
It can make food for you
b)
it can search online
c)
it can help you pull things up like a flag
d)
it can help you push or pull heavy things up or down
38.
What is an Inclined plane?
a)
A slope to make tasks easier
b)
A robot
c)
An airplane
d)
A pulley
39.
What two parts might make a pulley?
a)
wheel and axle
b)
wheel and wire
c)
wheel and screw
d)
wheel and fulcrum
40.
work is...
a)
energy from the sun
b)
a type of machine
c)
a force that moves an object
d)
a force that pulls you toward the earh
41.
The diagram provided shows a fixed pulley system.A fixed pulley does not change the amount of effort needed to lift the load, but it does change the
a)
direction of the force.
b)
weight of the load.
c)
volume of the force.
d)
shape of the load.
42.
What is a disadvantage of using an inclined plane to lift a heavy object?
a)
The object must be moved a greater distance.
b)
It takes less effort to move the object.
c)
Many objects are difficult to lift straight up.
d)
Heavy objects usually take up more space.
43.
Which of the following decreases when an object is moved using an inclined plane?
a)
The distance the object moves
b)
The pull of gravity on the object
c)
The force needed to move the object
d)
The amount of space the object occupies
The amount of space the object occupies
44.
The diagram shows a movable pulley system. When moving a load, this pulley system changes the —
a)
direction of the force.
b)
amount of force needed.
c)
pull of gravity on the load.
d)
overall mass of the rope.
45.
A push or a pull
a)
Force
b)
Gravity
c)
Pulley
d)
Inclined Plane
46.
Unit of force.
a)
Meter
b)
Centimeter
c)
Newton
47.
When you carry a heavy box up a ramp, instead of lifting it directly onto a platform:
a)
The amount of work you have to do increases slightly
b)
The amount of work you have to do decreases slightly
c)
The amount of work you have to do decreases significantly
d)
The amount of work you have to do stays the same
48.
Natural Resources are
a)
materials in the environment that are harmful to people
b)
are materials in the environment that are useful to people
c)
neither nonrenewable or renewable resources
d)
not oil, water, oxygen, and sunlight
49.
Renewable resources are natural resources that
a)
take thousands/millions of years to produce
b)
once they are used up they can't be produced ever
c)
can be produced again in our lifetime (80 years)
d)
are coal, oil, natural gas
50.
The following are renewable resources
a)
coal, oil, biofuel
b)
trees, animals, water
c)
coal, oil, petroleum
d)
oxygen, soil, fossil fuels
51.
Nonrenewable resources are natural resources, such as fossil fuels, that will eventually be used up and can never be replaced
a)
True
b)
False
52.
Fossil Fuels are fuels
a)
formed from the decaying remains of plants only
b)
formed from the decaying remains of plants and animals that were compressed over a short period of time
c)
formed from the decaying remains of plants and animals that lived millions of years ago
d)
formed from decaying food
53.
Fossil fuels, minerals, and metals are
a)
nonrenewable resources
b)
renewable resources
54.
Alternative Energy sources
a)
take the place of nonrenewable resources
b)
take the place of renewable resources
55.
Some examples of alternative energy resources are
a)
wind, solar, fossil fuels
b)
biofuels, hydroelectric, geothermal
c)
metals, minerals, fossil fuels
d)
metals, solar, wind
56.
A disadvantage of wind energy is
a)
that the wind will blow too hard
b)
it will produce electricity
c)
it will help our environment
d)
at certain times, the wind may not be blowing
57.
Which of the following alternative energy resource uses dams and turbines?
a)
hydroelectric power
b)
geothermal
c)
biofuels
d)
solar
58.
Geothermal energy is
a)
heat energy naturally produced in earthquakes
b)
is heat naturally produced in space
c)
is heat naturally produced within Earth
d)
is heat energy naturally produced in the water
59.
Solar Energy is captured with solar panels
a)
true
b)
false
60.
Hydroelectric power is electricity made from the energy of
a)
moving water underground
b)
moving water all over the ground
c)
moving water in a wind turbine
d)
moving water in a dam
61.
A disadvantage of geothermal energy is
a)
it is renewable
b)
that it is dangerous because they tend be in areas where volcanoes are
c)
that it is heat naturally produced within Earth
d)
that the heat energy produces steam
62.
Biofuels are fuels made from
a)
fossil fuels
b)
organic matter
c)
organic fuels
d)
fossil matter
63.
In hydroelectric energy, the energy of moving water turns turbines that changes into
a)
Solar Energy
b)
Wind Energy
c)
Mechanical energy
d)
Electrical Energy
64.
Thermal Energy
a)
results in an object or a system having a temperature that can be measured, can be transferred in the form of heat
b)
the energy an object has before moving
c)
the energy an object has after moving
d)
the energy created when potential energy becomes kinetic energy
65.
Potential Energy
a)
Energy that gives off heat
b)
The type of energy an object has in motion
c)
The type of energy an object has before it gains motion
d)
none of these
66.
Chemical Energy
a)
energy that gives off heat
b)
energy released in motion
c)
energy released before motion occurs
d)
energy released in a chemical reaction
67.
Kinetic Energy
a)
energy of something before being in motion
b)
energy when something is in motion
c)
energy released in a chemical reaction
d)
energy that gives off heat
68.
Mechanical energy
a)
energy built up before being in motion
b)
energy released in a chemical reaction
c)
energy of motion
d)
sum of kinetic and potential energy
69.
When a soccer ball is on a field, the energy it has just before being kicked is called
a)
kinetic energy
b)
potential energy
c)
mechanical energy
d)
chemical energy
70.
According to the Law of Conservation of Energy, energy cannot be _________ or ____________.
a)
destroyed, destroyed
b)
created, saved
c)
created, destroyed
d)
lost, found
71.
If a runner is sweating as they run, what type of energy is causing the sweating?
a)
nuclear
b)
mechanical
c)
potential
d)
thermal
72.
What kind of energy comes from the Sun?
a)
chemical
b)
electrical
c)
solar
d)
mechanical
73.
What kind of energy does something have because of its height above the ground?
a)
gravitational potential
b)
elastic potential
c)
chemical
d)
radiant
74.
What kind of energy does something have because it is being stretched?
a)
gravitational potential
b)
elastic potential
c)
chemical
d)
radiant
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