Forces Flashcards

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1
Q

Which force pulls you to the floor?

A

Weight

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2
Q

Which force pushes you up in a fluid?

A

Upthrust

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3
Q

Which force acts on moving objects by heating them up or by resisting movement?

A

Friction

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4
Q

Which force applies in the air and resists movement?

A

Air resistance

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5
Q

What is a force?

A

A push/pull

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6
Q

Which force acts on objects by trying to keep them in their original form?

A

Tension

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7
Q

What are resistive forces?

A

Any forces that act to slow down a moving object

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8
Q

What are balanced forces?

A

Forces acting on an object that are the same size but in different directions

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9
Q

What is a reaction force?

A

The supportive force provided by a solid surface like a floor

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10
Q

What is streamline?

A

A shape that reduces resistance from water or air

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11
Q

What force resists movement in water?

A

Water resistance

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12
Q

What is a non-contact force?

A

A force that is magnetic, electrostatic, or gravitational and acts between objects not in contact

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13
Q

What is compression?

A

Squashing something into a smaller space

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14
Q

What is a lubricant?

A

A substance that reduces friction between surfaces when they rub together

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15
Q

What are unbalanced forces?

A

Opposing forces that are different sizes

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16
Q

What is the calculation for speed?

A

Distance/Time and vice versa

17
Q

What is a newton?

A

A measurement of force

18
Q

What is a magnetic force?

A

A force between two magnets, or a magnet and a magnetic material

19
Q

What is gravity?

A

A non-contact force that acts between two masses

20
Q

What is a field?

A

The space in which something feels a force

21
Q

What is a newton meter?

A

A piece of equipment used to measure weight in newtons

22
Q

What is deforming?

A

To change shape

23
Q

What is an equillibrium?

A

When two forces are balanced forces

24
Q

What is an electrostatic force?

A

A force acting between two charged objects

25
Q

What is an elastic limit?

A

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

26
Q

What is a kilogram?

A

A unit of mass

27
Q

What is extension?

A

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

28
Q

What is Hooke’s law?

A

The law that says when the force on something is doubled the extension doubles too

29
Q

What is an interaction pair?

A

When two objects interact and there is a force on each one that is the same size but in opposing directions

30
Q

What is resultant force?

A

Overall force acting on an object