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Science > Forces and speed > Flashcards

Forces and speed Flashcards

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1
Q

air resistance

A

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

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2
Q

compress

A

to squash into a smaller place.

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3
Q

contact force

A

a force that acts when an object is in contact with a surface,air or water.

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4
Q

deform

A

alter a shape

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5
Q

driving force

A

the force that is pushing or pulling something

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6
Q

kinetic energy

A

mobile or in motion

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7
Q

potential energy

A

immobile energy that has the power to cause a great impact.

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8
Q

equilibrium

A

balanced

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9
Q

electrostatic force

A

the force between two charged objects

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10
Q

drag force

A

the force that causes an object moving through the air or water to slow down.

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11
Q

extension

A

extra amount added to an object.

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12
Q

field

A

a region with force

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13
Q

friction

A

a force that resists movement because of contact between surfaces.

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14
Q

gravity

A

a non-contact force that acts between two masses.

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15
Q

Mass

A

The amount of matter in an object.

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16
Q

lubrication

A

a substance that reduces the friction between two objects.

17
Q

magnetic force

A

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

18
Q

newton

A

the unit of force which is usually for weight.

Newton = N

19
Q

types of forces. Hint: 3 of them

A

push, pull, twist

20
Q

streamlined

A

shaped to reduce resistance to motion from air and water.

21
Q

density

A

amount of particles in a certain object.

Density = mass/volume

22
Q

weight

A

measured in Newtons
Weight = mass * Gravitational field stregnth
Newtons= kg * Newtons per kg

23
Q

Distance-time graph

A

The motion of an object can be described by this.

24
Q

resistive forces

A

Any forces that act to slow down a moving object

25
Q

unbalanced

A

unequal forces

26
Q

tension

A

a stretching force

27
Q

elastic limit

A

The point beyond which a spring will not return to its original legnth when the force is removed.

28
Q

speed

A

speed = distance/time

29
Q

best fit line

A

a line that can go through a point on a graph the best.

30
Q

anomaly

A

A result that does not fit the pattern or trend.

31
Q

equation

A

A sum that calculates certain things.

32
Q

buoyancy

A

being able to float on water

Science (2 decks)

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