A question about the amplitude graph of the pendulum:
Should I say; Period does not depend on Amplitude and just make azero slope graph just like the mass graph.
OR
Should I say; The time period of a pendulum changes as theamplitude changes, but change is negligible if the amplitude isvery small. Period only depends on amplitude, if the amplitudeisn't very small and make a positive slope graph that represents aslight change as the amplitude of pendulum increases.
Q2: What's the maximum amplitude of a 0.71m pendulum is it 90° or180°?
Q3: As a negative test charge moves farther from a negativecharge in an electric field, the potential energy?
a.decreases.
b. increases.
c. doubles.
d. remains the same.
Q4: If a magnetic field points upward and the current is to yourleft, the force is.
a. toward you
b. to your right
c. away from you
d. to your left
Q5: A device used to measure both magnitude AND direction of anelectric current is a(n)
a. ammeter.
b. galvanometer.
c. voltmeter.
d. ohmmeter.
Q6: The current is least in a rotating loop when the loop’smotion is __________ the magnetic field.
a. slow and perpendicular to
b. slow and parallel to
c. fast and perpendicular to
d. fast and parallel to
Q7: The force on a test charge in an electric field is__________ the magnitude of the field.
a. inversely proportional to
b. directly proportional to
c. inversely proportional to the square of
d. unrelated to
