MCAT PHYSICS 1
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Newtons 3 laws of motion
- 1.a body at rest stays at rest, a body in motion stay in motion (straight line) unless outside force acts upon it.
- 3.for every force there is an equal and opposite force.
(t/f) a body in translational equilibrium has a net force moving it at a constant velocity
false, a body at translational equilibrium has zero net force
formula for torque
when calculating torque, what direction is positive, what is negative
counterclockwise is positive, clockwise is negative
formula for centripetal acceleration
formula for centripetal force
F=ma or F=mv2/r
formula for work
- from pressure (isobaric process):
units for work and energy?
formula for mechanical kinetic energy? gravitational potential energy?
formula for momentum
formula for impulse?
delta p or j=Ft=mv-mv0
formula for center of mass for m1 and m2 at x1 and x2
(t/f) kinetic energy is conserved in a completely elastic collision
(t/f) momentum is not conserved in a inelastic collision
false, momentum is conserved in both elastic and inelastic collisions
formula for heat gained and temperature change
- c-specific heat
what is heat of fusion
energy required for phase change from solid to liquid
formula for heat gained or lost during phase change
- L-heat of transformation
formula for first law of thermodynamic
delta U=heat energy gained-work done by the system
2nd law of thermodynamic
entropy of a closed system will either increase or remain unchanged
density of water
1000 kg/m3 or 1g/cm3
formula for pressure
formula for absolute pressure
what is gauge pressure
pressure in excess to atmospheric pressure
formula for buoyant force
a pipe of varying cross sections, how do fluid velocity and cross section area related?
formula for Young's modulus
- stress (F/A)
- strain (delta L/L)
formula for electric field (E) at a distance (r) from a charge (q)
formula for force that a charge (q) experience in a electric field (E)
unit for electric field
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