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Physics > Motion > Flashcards

Motion Flashcards

1
Q

What is the study of the relationship between the motion of bodies and the forces acting on them called?

A

Force and motion

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2
Q

What is the relationship between velocity, acceleration, and distance known as?

A

Kinematics

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3
Q

How is motion defined?

A

A continuing change of position or place

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4
Q

What characterizes uniform motion?

A

Constant speed over a given period of time

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5
Q

Define speed in physics.

A

How fast an object is moving or how far it travels in a specific time

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6
Q

What does velocity denote?

A

Both speed and the direction of motion

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7
Q

True or False: Speed and velocity are interchangeable terms in physics.

A

False

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8
Q

What is a vector in the context of physics?

A

A line of specific length with an arrow indicating direction

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9
Q

How can two velocity vectors be combined?

A

Through vector analysis

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10
Q

What happens to an airplane flying in a circular pattern at constant speed?

A

It is constantly changing velocity

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11
Q

What is the formula to calculate speed?

A

Distance divided by elapsed time

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12
Q

Acceleration is defined as the rate of change of _______.

A

Velocity

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13
Q

How is average acceleration calculated?

A

Change in velocity divided by time

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14
Q

What is the acceleration due to gravity?

A

32.2 fps/s

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15
Q

What does Newton’s first law of motion describe?

A

Inertia

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16
Q

What does Newton’s second law state?

A

The rate of change of momentum is proportional to the applied force

17
Q

What is the formula for thrust derived from Newton’s second law?

A

F = MA

18
Q

Newton’s third law of motion states that for every action there is an _______.

A

Equal and opposite reaction

19
Q

What is circular motion?

A

Motion of an object along a curved path with a constant radius

20
Q

What is centripetal force?

A

The force directed towards the center of a circular path

21
Q

Centripetal force is directly proportional to the _______ of the object in circular motion.

A

Mass

22
Q

Centripetal force is inversely proportional to the _______ of the circle.

A

Radius

23
Q

Centripetal force is directly proportional to the square of the _______.

A

Velocity

24
Q

What is the effect of a 10-pound weight moving in a 3-ft radius circular path at 500 fps?

A

Experiences 2,588 Gs

25
Q

Centripetal Force =

A

Mass (Velocity^2) / Radius

Physics (12 decks)

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