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Science > Forces and speed > Flashcards

Forces and speed Flashcards

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1
Q

What is a force

A

A push or a pull

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2
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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3
Q

Balanced forces

A

Forces that are acting on the same object and are the same size, but are in different 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 is 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 its 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

Extension

A

The amount by which the 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 which acts between two masses

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16
Q

Hooke’s law

A

The law that says 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 object that is the same size but in opposing directions.

18
Q

Kilogram (kg)

A

A unit of mass, symbol kg

19
Q

Lubrication

A

A substance which reduces friction 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) an object consists 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 objects 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, A.K.A drag.

33
Q

Weight

A

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

Science (2 decks)

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