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MCAT Physics > Physics > Flashcards

Physics Flashcards

Learn all physics for the MCAT

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1
Q

What is the British/Imperial System unit for length?

A

Foot (ft)

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2
Q

What is the British/Imperial System unit for weight?

A

Pound (lb)

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3
Q

What is the British/Imperial System unit for time?

A

Second (s)

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4
Q

What is the British/Imperial System unit for mass?

A

Slug

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5
Q

What is the SI unit for length?

A

Meter (m)

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6
Q

What is the SI unit for mass?

A

Kilogram (kg)

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7
Q

What is the SI unit for time?

A

Second (s)

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8
Q

What is the SI unit for current?

A

Ampere (A)

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9
Q

What is the SI unit for amount of substance?

A

Mole (mol)

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10
Q

What is the SI unit for temperature?

A

Kelvin (K)

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11
Q

What is the SI unit for luminous intensity?

A

Candela (cd)

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12
Q

What is an angstrom?

A

1 x 10^-10 m

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13
Q

What is an electron-volt?

A

1 eV = 1.6 x 10^-19 J

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14
Q

What are vector quantities?

A

Displacement, Velocity, Acceleration, and Force

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15
Q

What are scalar quantities?

A

Distance, Speed, Energy, Pressure, and Mass

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16
Q

How do you add or subtract vectors?

A

Tip to tail

17
Q

What is Force?

A

F = ma

18
Q

What is Gravitational Force equation?

A

F = (G(m1)(m2)) / (r^2)

19
Q

What is the Universal Gravitational Constant?

A

G = 6.67 x 10^-11

20
Q

When one gets further away from Earth’s surface, what happens to the acceleration due to gravity?

A

g Decreases with increasing height, and g increases as one gets closer to the surface.

21
Q

What are the two types of friction?

A

Static and Kinetic

22
Q

What is Static friction?

A

0 less than or equal to Fs less than or equal to (mu)(N)

23
Q

What is kinetic friction?

A

Fk = (mu)(N)

24
Q

What is larger, the coefficient of static or kinetic friction?

A

The coefficient of static friction will ALWAYS be larger than the coefficient of kinetic friction

25
Q

What is mass?

A

Mass is a measure of a body’s inertia - the amount of matter in the object

26
Q

What is weight?

A

Measure of gravitational force on an object’s mass

27
Q

How are weight and mass related?

A

F = mg

28
Q

How is center of mass defined?

A

x = (sum: (m)(x)) / (sum: (m))

29
Q

Where is the center of mass of a uniform object?

A

At the geometric center

30
Q

What is Newton’s First Law of motion?

A

A body either at rest or in motion with constant velocity will remain that way unless a net fore acts upon it:
(sum: F) = ma = 0.

31
Q

What is Newton’s Second Law of motion?

A

An object of mass m will accelerate when vector sum of the forces results in some non=zero resultant force vector:
(sum: F) = ma

32
Q

What is Newton’s Third Law of motion?

A

To every action there is always an opposite but equal reaction

33
Q

What are the equations of linear motion with constant acceleration?

A 
v = (v0) + at
x = (x0) + (v0)t + (0.5)at^2
v^2 = (v0)^2 + 2ax
34
Q

In projectile motion, what is (v)x or Horizontal velocity?

A

Always constant

35
Q

Which direction does centripedal force always point?

A

Radially inward

36
Q

What is centripedal force?

A

Fc = (m)(v)^2 / r

37
Q

If net force is equal to zero, is the object at rest?

A

Maybe. If net force is 0, then it could be at rest or at constant velocity

38
Q

What is Torque defined as?

A

Torque = r x F = rFsin(x)

39
Q

What is constant in rotational equilibrium?

A

Angular velocity

MCAT Physics (1 decks)

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