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Duplicate of Energy Flashcards | StudBud
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Duplicate of Energy
Duplicate of Energy
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1
An apple that falls from a tree is the victim of
heat energy
life energy
gravitational energy
chemical energy
2
Which simple machine is the BEST choice for pushing a fallen boulder off a roadway?
screw
lever
inclined plane
wheel and axle
3
How does the height of an object affect the way it's going to fall?
the higher the object, the more mechanical energy
it doesn't affect the amount of kinetic energy
The higher the object, the more kinetic energy
the higher the object, the less kinetic energy
4
At which point does the ball have the most potential energy?
1
3
2
4
5
When you twist the lid on to your glue bottle you are using a
pulley
wheel and axle
screw
lever
6
What kind of energy is being used?
mechanical energy
potential energy
gravitational energy
heat energy
7
Which device directly converts chemical energy into electrical energy?
Wind-powered sailboat
Solar-powered calculator
Wood-burning stove
Battery-powered flashlight
8
What is potential energy?
the amount of energy you have when you wake up
how well you can do on a test
stored energy
energy of motion
9
What types of energy are shown here?
light and heat
solar and electric
potential
light and mechanical
10
At position A, there is
more potential energy, less kinetic.
no potential or kinetic energy
equal amounts of both potential and kinetic energy
more kinetic energy, less potential energy
11
How does the fixed pulley help him to make his work easier?
changing the speed
increase the effort used
changing the direction of force
making it easier to reach
12
At which position is there the most potential energy?
3
1
4
2
13
A skateboard at the top of a ramp has the most
transformational energy
potential energy
kinetic energy
electrical energy
14
When you turn a door handle to open a door you are using a
fulcrum
wheel and axle
lever
screw
15
what kinds of energy are used when you are chewing food?
light and chemical
solar and chemical
electrical and mechanical
chemical and mechanical
16
What is the process of heat transfer which is illustrated here?
convection
radiation
conduction
condensation
17
Which statement best describes the energy changes that occur when you sled down a steep hill?
Kinetic energy increases and potential energy decreases.
Both potential energy and kinetic energy increase
Both potential energy and kinetic energy decrease.
Kinetic energy decreases and potential energy increases.
18
What type of energy are geysers and hot springs examples of?
electrical energy
solar energy
geothermal energy
mechanical energy
19
Kinetic Energy is
the mass of an object
energy of motion
stored energy
how something feels
20
Energy from the sun reaches the earth by means of
conduction
reflection
radiation
convection
21
In which diagram does the bow have the MOST potential energy?
d
c
a
b
22
When energy is transformed or converted, it is
increasing
running out
changing from one type to another
being absorbed
23
A lightbulb uses
geothermal energy
mechanical energy
light energy
electrical energy
24
Which skier will move faster?
Skier 1
Skier 2
25
Heat transfer by conduction occurs when molecules
become less dense and rise
flow as currents through liquids
collide with other molecules
form waves that travel through space
26
A system is
an order of operations
an equation
a mathematical formula
a set of interacting parts forming a complex whole
27
What type of Simple Machine is this?
wedge
incline plane
screw
lever
28
Which simple machine is used to move elevator cars?
lever
screw
pulley
inclined plane
29
Energy can never be created or destroyed is the law of
motion
conservation of energy
attraction
gravity
