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Social Studies and Science > Newton's Laws - Sheet1 > Flashcards

Newton's Laws - Sheet1 Flashcards

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1
Q

force

A

a push or pull on an object

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2
Q

friction

A

force between two objects when they are touching and in motion

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3
Q

weight

A

pull of gravity on an object measured in newtons

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4
Q

acceleration

A

change in velocity over time

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5
Q

newton

A

the unit by which force is measured

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6
Q

inertia

A

resistance of an object to a change in it’s motion

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7
Q

free body diagram

A

a diagram representing forces on an object

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8
Q

newtons 1st law

A

an object in motion stays in motion and an object at rest stays at rest unless acted on by an unbalanced force

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9
Q

newtons 2nd law

A

an unbalanced force causes a mass to accelerate

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10
Q

newtons 3rd law

A

for every action, there is an equal and opposite reaction

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11
Q

air resistance

A

the resistance force acting on an object as it falls through the air

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12
Q

equilibrium

A

a state of physical balance

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13
Q

net force

A

all forces added together

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14
Q

balanced forces

A

forces that are equal in magnitude and opposite in direction

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15
Q

applied force

A

a push or a pull on an obect caused by another object

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16
Q

static friction

A

frictional force resisting the start of motion

17
Q

kinetic friction

A

friction between objects in motion

18
Q

equation for newtons 2nd law

A

f=ma

19
Q

mass

A

amount of matter that makes up an object

20
Q

A magician pulls a tablecloth out from under dishes and glasses on a table without disturbing them. Which of Newton’s Laws does this represent?

A

Ist Law, which is also called the law of inertia

21
Q

Generally, pushing a child on a swing is easier than pushing an adult on the same swing. Which on Newton’s Laws does this represent?

A

Newton’s 2nd Law

22
Q

If the net force on an object is zero, the object is either ____________or _____________.

A

moving with constant velocity or at rest

Social Studies and Science (18 decks)

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