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Physics > Force Moments Work And Power > Flashcards

Force Moments Work And Power Flashcards

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1
Q

Force

A

Is anything which causes an object to change its velocity

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2
Q

Velocity

A

Is the speed in a given direction

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3
Q

Forces are measured in

A

Newtons

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4
Q

Push

A

Changes the velocity of an object

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5
Q

Pull

A

Changes the velocity of an object

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6
Q

Weight

A

Moves objects towards the ground

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7
Q

Friction

A

Slowst down moving objects

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8
Q

Electric

A

Causes charges particles to move

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9
Q

Magnetic

A

Causes magnetic materials to move

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10
Q

To measure force we use a

A

Newton spring balance

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11
Q

Forces always occur in pairs

A

For every force there is an equal and opposite force

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12
Q

Friction

A

Is the force that prevents easy movements between two objects in contact

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13
Q

High friction

A

Sand paper, car tyres ,rough soled shoes

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14
Q

Low friction

A

Wet soap ,ice and glass

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15
Q

Lubricant

A

Is anything that reduces friction

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16
Q

Friction (advantages

A 
Helps u stop
Brakes your car 
Removes rough surfaces(sand paper)
Helps you to walk -gives u grip to stop slipping 
Tyres wont spin while driving
17
Q

Friction (disadvantages)

A

Wear down new shoes
Can get carpet burns if you fall
Braces cause blisters

18
Q

Force

A

Mass x acceleration

19
Q

Weight

A

Mass x ( acceleration due to) gravity

Physics (6 decks)

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