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science > Force > Flashcards

Force Flashcards

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Biology 101 flashcards
1
Q

Force

A

Something that can cause an object to change velocity or acceleration

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2
Q

Measurement of force

A

Newtons (n)

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3
Q

Different types of force

A

Gravity

Electric

Friction

Magnetic

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4
Q

Friction

A

Is a force that opposes a motion between two objects

It can be a nuisance eg.(slows things down when not wanted )

Friction can be useful (tyres and a road)

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5
Q

How to reduce friction

A

Lubrication-oil, Liquid, soap

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6
Q

Weight

A

Weight

  1. measured In newtons
  2. has Direction.
  3. weight of an object can change
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7
Q

Mass

A
  1. measured in grams and kilograms
  2. no direction
  3. mass of an object remains
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8
Q

Hookes law

A

If the force of the spring doubles so will the extension

Mass is he amount of matter in something

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