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Kory P.

• 14

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t/f? for an object to be accelerating a force must be acting on it

true

t/f? i can rearrange F=ma to say m=F/a, but if i double the force acting on a given object, i will not double the mass of the object

t

t/f? an object moving in uniform circular motion has an acceleration directed outward

f

t/f? if the total work is done on an object is (-), its KE must decrease

t

t/f? the sun is much bigger than the earth, therefore the gravitational force it feels due to the earth is much smaller than the force the earth feels from the sun

f

Consider a single pair of isolated particles, a proton and an electron near each other. P+ are about 1800x larger than e- and are attracted to each other due to opposite charges. :

t/f? the force the P+ feels is weaker than the force the e- feels

f

t/f? at that point its acceleration will still be -9.8 m/s^2

t/f? if an object is moving, there must be a net non-zero force acting on it

t/f? it is possible to add things with different units together

t/f? to maximize the work a force does, it should be directed perpendicular to the displacement

t/f? when an objects slides on the ground, F_{fk }is going to do (-) work on the object

t/f? in a perf inelastic C, KE is always conserved

t/f? when a semi hits a prius, they both exert the same force on each other

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