potential and kinetic energy

Flashcard
•
Science
•
8th Grade
•
Hard
+1
Standards-aligned
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15 questions
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1.
FLASHCARD QUESTION
Front
What is kinetic energy?
Back
Kinetic energy is the energy that an object possesses due to its motion. It is calculated using the formula KE = 1/2 mv², where m is mass and v is velocity.
Tags
NGSS.MS-PS3-1
2.
FLASHCARD QUESTION
Front
What is potential energy?
Back
Potential energy is the energy stored in an object due to its position or configuration. It is often associated with gravitational potential energy, which is calculated using the formula PE = mgh, where m is mass, g is the acceleration due to gravity, and h is height.
Tags
NGSS.MS-PS3-2
3.
FLASHCARD QUESTION
Front
How does potential energy change as an object falls?
Back
As an object falls, its potential energy decreases while its kinetic energy increases, assuming no energy is lost to air resistance or other forces.
4.
FLASHCARD QUESTION
Front
What happens to the total mechanical energy in a closed system?
Back
In a closed system, the total mechanical energy (the sum of potential and kinetic energy) remains constant, assuming no external work is done on the system.
5.
FLASHCARD QUESTION
Front
What is the relationship between kinetic and potential energy in a pendulum?
Back
In a pendulum, as it swings from its highest point to its lowest point, potential energy is converted into kinetic energy, resulting in maximum kinetic energy at the lowest point and maximum potential energy at the highest points.
Tags
NGSS.MS-PS3-4
NGSS.MS-PS3-5
6.
FLASHCARD QUESTION
Front
What is the formula for calculating kinetic energy?
Back
The formula for calculating kinetic energy is KE = 1/2 mv², where m is the mass of the object and v is its velocity.
Tags
NGSS.MS-PS3-1
7.
FLASHCARD QUESTION
Front
What is the formula for calculating potential energy?
Back
The formula for calculating gravitational potential energy is PE = mgh, where m is the mass, g is the acceleration due to gravity, and h is the height above a reference point.
Tags
NGSS.MS-PS3-2
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