8I-Forces

Notes and definitions of the things I need to learn for the 50 minute test.

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If the forces are balanced...
The object is not moving or moving at a constant speed (the 2 arrows will be the same.)
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If the forces are unbalanced...
The object is either speeding up or slowing down (the two arrows will be a different length.)
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Weight...
Pulls you down in air/water.
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Upthrust...
In water, pushes you up.
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Drag...
In water, pushes you up
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Force:
Push, pull or twist energy
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The amount of space on a surface
Area
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Pressure
The force applied/experted on an area.
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The size of pressure depends on two things
Size of force and the size of area it's pushing on.
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Effort
Something that uses energy to push the load down
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Load
Needs energy to be pushed down
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Magnets...
Are often made of steel (which contains iron)
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Uses of magnets:
Fridge, vaccum cleaner, washing machines,microwave, computer etc.
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What determines the strength of an electromagnet?
Different number of coils, curret, shape.
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Other cards in this set

Card 2

Front

The object is either speeding up or slowing down (the two arrows will be a different length.)

Back

If the forces are unbalanced...

Card 3

Front

Pulls you down in air/water.

Back

Preview of the back of card 3

Card 4

Front

In water, pushes you up.

Back

Preview of the back of card 4

Card 5

Front

In water, pushes you up

Back

Preview of the back of card 5
View more cards

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