Forces and Speed Flashcards

(38 cards)

1
Q

Air Resistance

A

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

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2
Q

Balanced

A

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

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3
Q

Compress

A

To squash into a smaller space.

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4
Q

Contact Force

A

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

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5
Q

Deform

A

To change shape.

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6
Q

Drag Force

A

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

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7
Q

Driving Force

A

The force that is pushing or pulling something.

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8
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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9
Q

Extension

A

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

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10
Q

Friction

A

The force that resists movement because of contact between surfaces.

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11
Q

Gravity

A

A non-contact force between two objects.

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12
Q

Kilogram

A

1000grams make a Kilogram

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13
Q

Lubrication

A

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

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14
Q

Magnetic Force

A

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

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15
Q

Mass

A

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

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16
Q

Newton

A

The unit of a force, symbol N. Discovered by Sir Isaac Newton.

17
Q

Newton Meter

A

A piece of equipment used to measure weight in Newtons.

18
Q

Push/Pull

A

A force exerted to move an object away or towards another object.

19
Q

Reaction

A

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

20
Q

Distance-Time Graph

A

The motion of an object can be described as this.

21
Q

Resistive Forces

A

Any forces that act to slow down a moving object.

22
Q

Streamlined

A

Shaped to reduce resistance from air or water.

23
Q

Tension

A

A stretching force.

24
Q

Unbalanced

A

When the opposing forces of an object are not equal

25
Water Resistance
The force of an object moving through the water that causes it to slow down (also known as drag).
26
Weight
The force that pulls objects to the centre of the Earth.
27
Force
Something that when it is added to an object it changes its direction or speed.
28
Upthrust
A force pushing upwards on an object in a liquid.
29
Thrust
A push caused by an engine.
30
Lift
A force pushing upwards on an object flying through the air.
31
Speed
Distance / time
32
Distance
Speed x time
33
Time
Distance / speed
34
Best fit
A line that goes through the majority go the points on a graph missing out anomalies.
35
Anomaly
A result that varies greatly from the trend.
36
Extension equation
New length - original length
37
Equilibrium
Balanced
38
Density
mass / volume