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Potential and Kinetic Energy Test Review Flashcards | StudBud
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Potential and Kinetic Energy Test Review
Potential and Kinetic Energy Test Review
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1
If Elasta shoots a rubberband, how much elastic energy is left when the band in half way across the room?
25% is elastic and 75% is thermal energy
All the elastic energy is still there
No elastic energy because all the energy is transformed to kinetic energy
Half is elastic energy and half is transformed to kinetic energy
2
Potential energy includes all of the following EXCEPT
Gravitational (objects that could fall)
Electrical (electrons moving through a wire)
Chemical (energy stored in bonds)
Nuclear (stored in the nucleus of an atom)
3
How are scientific laws and scientific theories the same?
They are based on recent experiments only
They never change
They are based on scientific evidence
They always change
4
What type of energy transfomation occurs between the sun and trees?
Transforming sound energy into thermal (heat) energy
Transforming electromagnetic (light) energy into electrical energy
Transforming mechanical energy into electrical energy
Transforming electromagnetic (light) energy into chemical energy
5
Light, heat, and motion are indicators the object has
energy
density
volume
mass
6
Fill in the Blank: Potential energy is referred to as ___________ energy.
Kinetic
Mechanical
Stored
Motion
7
Does the static electricity cause the potential energy to increase or decrease as the balloon gets CLOSER to the paper?
There is no potential energy from the static
Potential energy increases and kinetic decreases
There's confetti and ballons! Let's have a party!
Potential energy decreases and kinetic energy increases
8
Elastic potential energy is _____ the further a rubber band is stretched.
increased
stays the same
decreased
9
What happens to the kinetic energy when the roller coaster comes to a stop?
It gets stored in the wheels until the roller coaster starts again
All the energy is destroyed
Kinetic energy is transformed to thermal and sound energy
Kinetic energy is transformed to potential energy
10
What happens when the kinetic energy of an object rubs together and creates friction?
it becomes thermal energy
it becomes nuclear energy
it becomes potential energy
it doesn't do anything
11
Which point on the roller coaster shows the LEAST amount of potential energy?
B
D
A
C
12
______ states that when one form of energy is transformed to another, no energy is lost.
Power
Law of Conservation of Energy
Gravitational Potential Energy
Electricity
13
Which point has the most total energy?
Point D
Point B
All points have the same total energy
Point C
14
Which ball has more potential energy?
Green
Red
Yellow
Blue
15
What happens between point C and point D?
Potential energy is converted to kinetic energy.
Kinetic energy is converted to potential energy.
Your frown is turned upside down
The total energy of the ball increases from Point C to Point D
16
If the speed of a roller coaster cart doubles, the kinetic energy ______________.
stays the same
quadruples
triples
doubles
17
Is the roller coaster cart matter or energy?
The cart is only energy because it is moving
It's a ghost cart. It is not matter or energy
The cart is only matter because it has mass and volume
The cart is both matter and energy
18
If a pendulum has 30 joules of PE at the top of its swing, how much kinetic energy should it have at the bottom?
60 joules
120 joules
30 joules
15 joules
19
At what point does the skateboarder have the most potential energy?
3
1
Potential energy is the same at all points
2
20
What type of energy transfomation occurs between the sun and a solar panel?
Transforming electromagnetic (light) energy into chemical energy
Transforming mechanical energy into electrical energy
Transforming electromagnetic (light) energy into electrical energy
Transforming sound energy into thermal (heat) energy
21
What energy transformation happens when you toast bread?
nuclear energy to electrical energy
chemical energy to electrical energy
electrical energy to thermal energy
electrical to chemical energy
22
What 2 aspects of objects impact Kinetic Energy the most?
Velocity and Location
Mass and Velocity
Velocity and Speed
Mass and Weight
23
This picture illustrates that all matter has...
gas
atoms
cells
mass
24
If 100 joules of electrical energy is put into a lamp, how much energy will the lamp put out?
70 j of light energy and 20 j of kinetic (motion) energy
50 j of light energy and 50 j of nuclear energy
70 j of light energy and 30 j of thermal energy
50 j of sound energy
25
What type of energy is released during the fusion or fission of atoms?
Radiant
Thermal
Nuclear
Chemical
26
Which has more potential energy?
Two magnets that are farther apart and attracted to each other
Two magnets that are very `close and attracted to each other
Two magnets that are touching and attracted to each other
There is no potential energy between magnets0
27
How are scientific laws and scientific theories different?
A law is backed by years of observations and research and a theory isn't
A law states what always happens and a theory explains why things happen
A theory states what always happens and a law explains why things happen
A theory is short and can involve equations while laws are explanations
28
Which type of energy travels through space in waves?
electrical energy
chemical energy
electromagnetic energy
sound energy
29
What happens to Kinetic Energy as Potential Energy is decreased?
It stays the same
Creates an explosion
Increases
Decreases
30
Fill in the Blank: Kinetic energy is defined as energy in ____________.
Florida
Motion
Physics
Stored
31
What type of potential energy is stored in the bonds of your food and gasoline?
Thermal
Electrical
Nuclear
Chemical
32
Kinetic energy in an object is the same as what other kind of energy?
Thermal
Electromagnetic
Nuclear
Mechanical
33
What type of energy transfomation happens when you turn on a flashlight?
electrical energy to electromagnetic
electrical energy to thermal
chemical energy to electrical energy
all transformations listed
34
Why does point C have the most potential energy?
It is the highest off the ground
It's traveling the fastest
It believes it can fly
It has the most mass
35
2 boulders are rolling down a mountain at 7 m/s...why does boulder A have more Kinetic Energy?
It's Windy
Boulder A has LESS Mass
Boulder A has MORE Mass
Both Boulders have the SAME Mass
36
How can you increase the potential energy of a bow an arrow?
Fire It
Knock the Arrow
Pull it Back
