Kinetic energy

?
What is kinetic energy?
the energy of movement
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What is the formula?
Kinetic energy(joules)=1/2 times mass (kg) times speed2 (m/s)
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The more it weighs and faster?
the bigger kinetic energy
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Kinetic energy transferred is?
work done
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Conservation of energy states that energy can never be?
created or destroyed-only converted into different forms
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A moving car has lots of kinetci energy-to slow a car down this kinetic energy needs to be converted into?
other types of energy
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To stop a car , the kinetic energy (1/2mv2) has to be converted into?
heat energy as friction between the wheels and the brake pads causing the temps of the brakes to incrase
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What is the formula for kinetic energy transferred?
Kinetic energy transferred (1/2mv2)=work done by brakes (f times d)
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What is the formula?
1/2mv2 (mass of cars and passengers in kg) (speed of car in m/s)=f (maxium braking force in N) times d (braking distance in m)
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Falling objects convert ep to?
ek
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What happens when something falls?
Its potential energy is converted into kinetic energy
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What is the formula?
kinetic energy gained=potential energy lost
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Some ek is transfererd into?
heat and sound
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When meteors and space shuttles enter the atmosphere , they have?
a very high kinetic energy
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Friction due to collision with particles in the atmosphere transfers some of their?
kinetic energy to heat energy and work is done
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The temps can become so extreme that most meteors make it through to earths surface called?
meteorites
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Space shuttles have?
heat sheilds made from special materials which lose heat quickly allowing the shuttle to re enter the atmosphere without burning up
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Other cards in this set

Card 2

Front

What is the formula?

Back

Kinetic energy(joules)=1/2 times mass (kg) times speed2 (m/s)

Card 3

Front

The more it weighs and faster?

Back

Preview of the front of card 3

Card 4

Front

Kinetic energy transferred is?

Back

Preview of the front of card 4

Card 5

Front

Conservation of energy states that energy can never be?

Back

Preview of the front of card 5
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