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Science > Science Forces and Speed > Flashcards

Science Forces and Speed Flashcards

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1
Q

What is a force?

A

A push, pull or a twist

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2
Q

Air resistance/drag

A

The force on an object moving through the air that causes it to slow down (also known as drag).

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3
Q

balanced

A

Forces acting on an object that are the same size but act in opposite directions.

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4
Q

compress

A

To squash into a smaller space

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5
Q

contact force

A

A force that acts when an object it in contact with a surface, air, or water

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6
Q

deform

A

To change shape

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7
Q

drag force

A

The force acting on an object moving through the air or water that causes it to slow down.

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8
Q

driving force

A

The force that is pushing or pulling something

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9
Q

elastic limit

A

The point beyond which a spring will not return to it’s original length when the force is removed.

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10
Q

electrostatic force

A

The force acting between two charged objects

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11
Q

equilibrium

A

Balanced

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12
Q

ectension

A

The amount by which an object gets longer when a force is applied.

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13
Q

field

A

A region where something feels a force.

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14
Q

friction

A

The force that resists movement because of contact between surfaces.

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15
Q

gravity

A

A non-contact force that acts between two masses

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16
Q

Hooke’s Law

A

The law that says that if you double the force on an object the extension will double.

17
Q

interaction pair

A

When two objects interact there is a force on each one that is the same size.

18
Q

kilogram(kg)

A

A unit of mass, symbol kg

19
Q

lubrication

A

A substance that reduces friction between surfaces when they rub together.

20
Q

magnetic force

A

The force between two magnets, or a magnet and a magnetic material.

21
Q

mass

A

The amount of matter (stuff) a thing is made up of.

22
Q

Newton (N)

A

The unit of force, symbol N.

23
Q

newton meter

A

A piece of equipment used to measure weight in Newtons.

24
Q

non-contact force

A

a magnetic, electrostatic, or gravitational force that acts between objects not in contact.

25
Q

pull

A

A type of force.

26
Q

push

A

A type of force.

27
Q

reaction

A

The support force provided by a solid surface like a floor.

28
Q

resistive forces

A

Any forces that act to slow down a moving object.

29
Q

streamlined

A

Shaped to reduce resistance to motion from air or water.

30
Q

tension

A

A stretching force.

31
Q

unbalanced

A

Opposing forces on an object that are unequal.

32
Q

water resistance

A

The force on an object moving through water that causes it to slow down (also known as drag).

33
Q

weight

A

The force of the Earth on an object due to its mass.

Science (1 decks)

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